D-Link DGS-3308TG Product Manual

D-Link DGS-3308TG Manual

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  • D-Link DGS-3308TG | Product Manual - Page 1
    DGS-3308 Series 8-Port Gigabit Layer 3 Switch User's Guide First Edition (December 2001) 651FG3308015 Printed In Taiwan RECYCLABLE
  • D-Link DGS-3308TG | Product Manual - Page 2
    verwendet werden. Der Einsatz von ungeeigneten Ersatzteilen kann eine weitere Beschädigung hervorrufen. 17. Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner. Somit stellen Sie die Betriebssicherheit des Gerätes sicher. 18. Zum Netzanschluß dieses Gerätes
  • D-Link DGS-3308TG | Product Manual - Page 3
    APPLY EVEN IF DLINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. IF YOU PURCHASED A D-LINK PRODUCT IN THE UNITED service for software products may be obtained by contacting a D-Link office within the applicable warranty period. A list of D-Link offices is provided at the back of thi s manual
  • D-Link DGS-3308TG | Product Manual - Page 4
    shall have no obligation to provide compatibility when there is fault in the third-party hardware or software. D-Link makes no warranty that operation of its software products will be uninterrupted or absolutely error-free, and no warranty that all defects in the software
  • D-Link DGS-3308TG | Product Manual - Page 5
    product's Registration Card, provided at the back of this manual, must be sent to a D-Link office. To obtain an RMA number for warranty service as to a hardware product, or to obtain warranty service as to a software product, contact the D-Link office nearest you. An address/telepho ne/fax/e-mail
  • D-Link DGS-3308TG | Product Manual - Page 6
    . This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this user's guide, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which
  • D-Link DGS-3308TG | Product Manual - Page 7
    Table of Contents About This Guide...1 Overview of this User's Guide ...1 Introduction...2 Layer 3 Switching...2 The Functions of a Layer 3 Switch...3 Features ...3 Ports...3 Performance Features...4 Layer 2 Switching Features...4 Layer 3 Switching Features...4 Traffic Classification and
  • D-Link DGS-3308TG | Product Manual - Page 8
    Internet Group Management Protocol (IGMP)...45 Multicast Routing Algorithms...46 Multicast Routing Protocols...48 Routing Protocols...48 Configuring the Switch Using the Console Interface ...54 Before You Start ...54 General Deployment Strategy...54 VLAN Layout ...55 Assigning IP Network Addresses
  • D-Link DGS-3308TG | Product Manual - Page 9
    Table ...132 Browse Router Port ...133 IP Multicast Forwarding Table ...134 IGMP Group Table...135 DVMRP Routing Table ...136 Reboot and Factory Reset ...137 Web-Based Network Management...140 Introduction ...140 Before You Start ...140 General Deployment Strategy...140 VLAN Layout ...141 Assigning
  • D-Link DGS-3308TG | Product Manual - Page 10
    ...203 Save Log to TFTP Server...204 Save Changes...204 Factory Reset...205 Restart System ...206 Technical Specifications ...207 RJ-45 Pin Specification...210 Runtime Switching Software Default Settings...211 Understanding and Troubleshooting the Spanning Tree Protocol...212 Blocking State ...212
  • D-Link DGS-3308TG | Product Manual - Page 11
    the technical specifications of the DGS-3308TG and DGS-3308FG. • Appendix B, "RJ-45 Pin Specifications." Shows the details and pin assignments for the RJ-45 receptacle/connector. • Appendix C, "Factory Default Settings." • Appendix D, "Understanding and Troubleshooting the Spanning Tree Protocol
  • D-Link DGS-3308TG | Product Manual - Page 12
    User's Guide 1 INTRODUCTION This section describes the Layer 3 functionality and Layer 2 and Layer 3 features of the DGS-3308 Series replaced with DGS-3208FG and DGS-3208TG switches and a series of DGS-3308 switches could be linked via the Gigabit Ethernet ports. Routers that service WAN connections
  • D-Link DGS-3308TG | Product Manual - Page 13
    IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, and IEEE 802.3ab 1000BASE-T (DGS- 3308TG only). • Support Full Duplex operations. • Supports auto-negotiation for 10M/100M/1000M speed (DGS-3308TG only). • IEEE 802.3x compliant Flow Control support for full duplex. • Supports Head of Line Blocking. 3
  • D-Link DGS-3308TG | Product Manual - Page 14
    8-port Gigabit Ethernet Switch User's Guide • Per device packet buffer: 512Kbytes. • RS-232 device. • Supports RIP - (Routing Information Protocol) versions I and II. • Support OSPF routing protocol. • Supports IP version 4. • IGMP version 1 and 2 support (RFC 1112 and RFC 2236). • Supports PIM Dense
  • D-Link DGS-3308TG | Product Manual - Page 15
    8-port Gigabit Ethernet Switch User's Guide • Supports IP packet de-fragmentation. • Supports Path MTU discovery. • Supports 802.1D frame support. Traffic Classification and Prioritization • Based on 802.1p priority bits. • Based on MAC address. • 4 priority queues. Management • RS-232 console port
  • D-Link DGS-3308TG | Product Manual - Page 16
    8-port Gigabit Ethernet Switch User's Guide • BOOTP support. • IP filtering on the management interface. • DHCP Client support. • DHCP Relay Agent. • Password enabled. Optional Redundant Power Supply The DGS-3308 supports the optional DPS-1000 (Redundant Power Supply) to provide automatic power
  • D-Link DGS-3308TG | Product Manual - Page 17
    should contain the following items: • One DGS-3308TG or DGS-3308FG 8-port Gigabit Ethernet Layer 3 Switch • Mounting kit: 2 mounting brackets and screws • Four rubber feet with adhesive backing • One AC power cord • One Installation Guide • This User's Guide on CD-ROM with Registration Card If any
  • D-Link DGS-3308TG | Product Manual - Page 18
    8-port Gigabit Ethernet Switch User's Guide Figure 2-1. Installing rubber feet for desktop installation Rack Installation The DGS-3308 can be mounted in an EIA standard-sized, 19-inch rack, which can be placed in a wiring closet with other equipment. To install, attach
  • D-Link DGS-3308TG | Product Manual - Page 19
    port Gigabit Ethernet Switch User's Guide Figure 2-2B. Installing the Switch on an equipment rack Power on The DGS-3308 can be used with LED indicators will momentarily blink. This blinking of the LED indicators represents a reset of the system. • The Power LED indicator will blink while the Switch
  • D-Link DGS-3308TG | Product Manual - Page 20
    User's Guide 3 IDENTIFYING EXTERNAL COMPONENTS This chapter describes the front panel, rear panel, and LED indicators of the DGS-3308. emulation program. • Six Gigabit Ethernet ports (1000BASE-SX for DGS-3308FG and 1000BASE-T for DGS-3308TG). • Two GBIC-based Gigabit Ethernet ports. Rear Panel The
  • D-Link DGS-3308TG | Product Manual - Page 21
    Guide • The AC power connector is a standard three-pronged connector that supports the power cord. Plug-in the female connector of the provided power cord into this socket, and the male side of the cord into a power outlet. Supported of the Switch include Power, Console, Link/Act, and RPS In Use. The
  • D-Link DGS-3308TG | Product Manual - Page 22
    Gigabit Ethernet Switch User's Guide 4 CONNECTING THE SWITCH This chapter describes how to connect the DGS-3308FG/DGS-3308TG to your Gigabit Ethernet following LED indicator state is possible for a PC to Switch connection: • The Link/Act LED indicator lights up upon hooking up a PC that is powered on
  • D-Link DGS-3308TG | Product Manual - Page 23
    8-port Gigabit Ethernet Switch User's Guide Figure 4-2. Switch to switch connection 13
  • D-Link DGS-3308TG | Product Manual - Page 24
    Gigabit Ethernet Switch User's Guide 5 SWITCH MANAGEMENT AND OPERATING can manage, control and monitor the switch from the console program. The DGS-3308 contains a CPU, memory for data storage, flash memory for set at the factory for the following configuration: • Baud rate: 9,600 14
  • D-Link DGS-3308TG | Product Manual - Page 25
    Guide • Data width: 8 bits • Parity: none • Stop bits: 1 • Flow Control None Make sure the terminal or PC you are using to make this connection is configured to match these settings. If you are having problems assigned a unique MAC address by the factory. This MAC address cannot be changed,
  • D-Link DGS-3308TG | Product Manual - Page 26
    8-port Gigabit Ethernet Switch User's Guide Figure 5-2. Switch Information screen In addition, you can and four corresponding SNMP community strings can be entered. Note: SNMP community strings function like passwords in that the community string entered for a given IP address must be used in the
  • D-Link DGS-3308TG | Product Manual - Page 27
    Guide • Cold Start - This trap signifies that the Switch has been powered up and initialized such that software settings are reconfigured and hardware systems are rebooted. A cold start is different from a factory reset standard MIB-II, the Switch also supports its own proprietary enterprise MIB as
  • D-Link DGS-3308TG | Product Manual - Page 28
    Ethernet Switch User's Guide Authentication The authentication protocol ensures that both the router SNMP agent and the remote user SNMP application program discard packets from unauthorized users. Authentication is accomplished using 'community strings', which function like passwords. The remote
  • D-Link DGS-3308TG | Product Manual - Page 29
    8-port Gigabit Ethernet Switch User's Guide Some filtering requires the manual entry of information into a filtering table: • MAC address filtering - the manual entry of specific MAC addresses to be filtered from the network. Packets sent from one manually entered MAC address can be filtered from
  • D-Link DGS-3308TG | Product Manual - Page 30
    8-port Gigabit Ethernet Switch User's Guide Eight binary bits are called a 'byte' or an 'octet'. An octet can represent any decimal value between '0' (00000000) and '255' (11111111). IP addresses, represented in
  • D-Link DGS-3308TG | Product Manual - Page 31
    8-port Gigabit Ethernet Switch User's Guide Subnet Masking A subnet mask can be applied to an IP address to identify the network and the node parts of the address. A bitwise logical AND
  • D-Link DGS-3308TG | Product Manual - Page 32
    8-port Gigabit Ethernet Switch User's Guide Classless InterDomain Routing - CIDR Under CIDR, the subnet mask notation is reduced to a simplified shorthand. Instead of specifying all of the bits of the subnet
  • D-Link DGS-3308TG | Product Manual - Page 33
    8-port Gigabit Ethernet Switch User's Guide 2 Table 5-3. Class B Subnet Masks # of Subnet Mask CIDR # of Bits VLANs without a network device performing a routing function between the VLANs. 2. The DGS-3308 supports only IEEE 802.1Q VLANs. The port untagging function can be used to remove
  • D-Link DGS-3308TG | Product Manual - Page 34
    8-port Gigabit Ethernet Switch User's Guide • Untagging - The act of stripping 802.1Q VLAN information out of the packet header. • Ingress port - A port on a switch where packets are flowing into the
  • D-Link DGS-3308TG | Product Manual - Page 35
    8-port Gigabit Ethernet Switch User's Guide Figure 5-3. IEEE 802.1Q Packet Forwarding 802.1Q VLAN Tags The figure below shows the 802.1Q VLAN tag. There are four additional octets inserted
  • D-Link DGS-3308TG | Product Manual - Page 36
    8-port Gigabit Ethernet Switch User's Guide The EtherType and VLAN ID are inserted after the MAC source address, but before the originial EtherType/Length or Logical Link Control. Because the packet is now a bit longer than it was originally, the Cyclic Redundancy Check (CRC) must be recalculated.
  • D-Link DGS-3308TG | Product Manual - Page 37
    Guide the VLANs (IP subnets). The DGS-3308 does not directly support IP switching, however it is VID = 1, called the DEFAULT_VLAN. The factory default setting assigns all ports on the the link must be through an external router. When the switch is in Layer 2 Only mode, 802.1Q VLANs are supported.
  • D-Link DGS-3308TG | Product Manual - Page 38
    8-port Gigabit Ethernet Switch User's Guide An example is presented below: VLAN Name VID Switch Ports System (default) 1 7, 8 default values. The DGS-3308 STP allows two levels of spanning trees to be configured. The first level constructs a spanning tree on the links between switches.
  • D-Link DGS-3308TG | Product Manual - Page 39
    8-port Gigabit Ethernet Switch User's Guide The Switch STP performs the following functions: • Creates a the switch level and the port level. The switch level forms a spanning tree consisting of links between one or more switches. The port level constructs a spanning tree consisting of groups of
  • D-Link DGS-3308TG | Product Manual - Page 40
    8-port Gigabit Ethernet Switch User's Guide switch - lower numbers give a higher priority and a greater chance of a given switch being elected as the root bridge Hello Time The length of time between
  • D-Link DGS-3308TG | Product Manual - Page 41
    8-port Gigabit Ethernet Switch User's Guide • The path cost to the root from the transmitting switch. • Ports included in the STP are selected. Creating a Stable STP Topology to make the fastest link the root port. If all switches have STP enabled with default settings, the switch with the lowest
  • D-Link DGS-3308TG | Product Manual - Page 42
    or to disabled • From learning to forwarding or to disabled • From forwarding to disabled • From disabled to blocking 8-port Gigabit Ethernet Switch User's Guide Figure 5-6. STP Port State Transitions You can modify each port state by using management software. When you enable STP, every port on
  • D-Link DGS-3308TG | Product Manual - Page 43
    Guide User-Changeable STA Parameters The factory default setting should cover the majority of installations. However, it is advisable to keep the default settings as set at the factory In this example, you can anticipate some major network problems if the STP assistance is not applied. If switch
  • D-Link DGS-3308TG | Product Manual - Page 44
    8-port Gigabit Ethernet Switch User's Guide Figure 5-7. Before Applying the STA Rules In this example, but the port cost should be increased from the default to ensure that the link between switch B and switch C is the blocked link. Internet Protocols This is a brief introduction to TCP/IP, or the
  • D-Link DGS-3308TG | Product Manual - Page 45
    Switch User's Guide Protocol Layering The physical layer passes data to next higher layer, the data link layer, and so on until one user is connected to another. International Standards Organization) that are themselves not widely used or supported. The layered model itself is, however, taken as the
  • D-Link DGS-3308TG | Product Manual - Page 46
    8-port Gigabit Ethernet Switch User's Guide Using the protocol layering model to visualize the organization of the network software, Layer 2 represents switching and Layer 3 represents routing. In fact, the protocol layering
  • D-Link DGS-3308TG | Product Manual - Page 47
    8-port Gigabit Ethernet Switch User's Guide Layer 1 Layer 2 This is commonly called the switching layer. It allows for the addressing of end stations and for the interconnection of end stations. This
  • D-Link DGS-3308TG | Product Manual - Page 48
    8-port Gigabit Ethernet Switch User's Guide TCP/IP Transmission Control Protocol/Internet Protocol (TCP/IP) is the official name of a suite of protocols designed to allow computers to communicate and share
  • D-Link DGS-3308TG | Product Manual - Page 49
    8-port Gigabit Ethernet Switch User's Guide Connection 1 1234, 21 10.42.73.23 210.128.12.1 Connection 2 1235, 21 10.42.73.23 210.128.12.1 So the local computer, 10.
  • D-Link DGS-3308TG | Product Manual - Page 50
    8-port Gigabit Ethernet Switch User's Guide The TCP header is added to the beginning of each packet. This header contains at least 20 octets including the source and destination TCP port
  • D-Link DGS-3308TG | Product Manual - Page 51
    8-port Gigabit Ethernet Switch User's Guide Figure 5-12. IP Packet Header Flags and Fragment Offset are used when a packet must be divided into smaller pieces by a network device. This is sometimes
  • D-Link DGS-3308TG | Product Manual - Page 52
    8-port Gigabit Ethernet Switch User's Guide IP removes the IP header. It looks at the IP protocol field. Since the protocol type is TCP, it passes the packet to TCP. TCP
  • D-Link DGS-3308TG | Product Manual - Page 53
    8-port Gigabit Ethernet Switch User's Guide The software in a traditional router (or the hardware in a layer 3 switch) is designed to forward packets from one network to another. Routing is based upon
  • D-Link DGS-3308TG | Product Manual - Page 54
    8-port Gigabit Ethernet Switch User's Guide Figure 5-14. Class D Multicast Address Some of the assigned IP multicast addresses: Address Assignment 224.0.0.0 224.0.0.1 224.0.0.2 224.0.0.3 224.0.0.4 224.0.0.5 224.0.0.6 224.0.0.7 224.0.0.8 224.0.0.9 224.0.0.
  • D-Link DGS-3308TG | Product Manual - Page 55
    8-port Gigabit Ethernet Switch User's Guide Internet Group Management Protocol (IGMP) Computers and network devices that want to receive multicast transmissions need to inform nearby routers that they will become members
  • D-Link DGS-3308TG | Product Manual - Page 56
    8-port Gigabit Ethernet Switch User's Guide The states a computer will go through to join or to there is only one active link between any two routers. The blocked links then act to provide some redundant links that may become active in the future, if the currently active link fails. When a router
  • D-Link DGS-3308TG | Product Manual - Page 57
    8-port Gigabit Ethernet Switch User's Guide Reverse Path Broadcasting (RPB) The RPB algorithm is a modification When a router receives a multicast packet from a source, the router will check to see if the link on which the packet was received is the shortest path to the source. If it is, the packet
  • D-Link DGS-3308TG | Product Manual - Page 58
    Switch User's Guide Multicast Routing Protocols links which do not have group members. These links are then pruned from the delivery tree. A new message is added that allows a previously pruned link multicast messages from this source. DVMRP supports tunnel interfaces (that is, interfaces connecting
  • D-Link DGS-3308TG | Product Manual - Page 59
    8-port Gigabit Ethernet Switch User's Guide RIP specifies a few rules to improve performance and reliability. Once a topologies as one of the exercises suggests. Another way to think of the slow convergence problem is in terms of information flow. If a router advertises a short route to some network
  • D-Link DGS-3308TG | Product Manual - Page 60
    8-port Gigabit Ethernet Switch User's Guide RIP Version 1 Message Format RIP messages can be classified into two types: routing information messages and messages used to request information. Both use the same
  • D-Link DGS-3308TG | Product Manual - Page 61
    8-port Gigabit Ethernet Switch User's Guide 10 Update Response 11 Update Acknowledgement Table 5-12. RIP Command Codes A router or host can ask another router for routing information by sending a request command.
  • D-Link DGS-3308TG | Product Manual - Page 62
    8-port Gigabit Ethernet Switch User's Guide RIP2 Message Format The message format used with RIP2 is an extension of the RIP1 format, with additional information occupying unused octets of the address
  • D-Link DGS-3308TG | Product Manual - Page 63
    8-port Gigabit Ethernet Switch User's Guide Consider, for example, a typical corporate intranet. Most use a hierarchy that consists of a high-speed backbone network with multiple routers each connecting the backbone to a workgroup,
  • D-Link DGS-3308TG | Product Manual - Page 64
    Ethernet Switch User's Guide 6 CONFIGURING THE SWITCH USING THE CONSOLE INTERFACE Your 8-port Gigabit Ethernet Layer 3 Switch supports a console management is in Layer 2 Only mode. Before You Start The DGS-3308 Layer 3 Switch supports a wide array of functions and gives great flexibility and
  • D-Link DGS-3308TG | Product Manual - Page 65
    8-port Gigabit Ethernet Switch User's Guide 5. Develop a security scheme. Some subnets on the network time in case of a link or device failure. The Spanning Tree function can be used to block the redundant link until it is needed. VLAN Layout VLANs on the DGS-3308 have rather more functions than
  • D-Link DGS-3308TG | Product Manual - Page 66
    Switch User's Guide Connecting to switch. First Time Connecting To The Switch The Switch supports user-based security that can allow you to prevent unauthorized This section tells how to log onto the Switch. Note: The passwords used to access the Switch are case-sensitive; therefore, "S" is not the
  • D-Link DGS-3308TG | Product Manual - Page 67
    User's Guide Figure 6-1. Initial screen, first time connecting to the Switch Note: There is no initial username or password. Leave the username and password fields is described later in this manual. Press Enter in both the username and password fields. You will be given access to the main menu
  • D-Link DGS-3308TG | Product Manual - Page 68
    8-port Gigabit Ethernet Switch User's Guide Figure 6-2. Main Menu Note: The first user automatically gets Root privileges (See Table 6-1). It is recommended to create at least one Root-level user for
  • D-Link DGS-3308TG | Product Manual - Page 69
    8-port Gigabit Ethernet Switch User's Guide Figure 6-4. Setup User Accounts screen User Accounts made to an existing user entry. 2. Enter the new user name, assign an initial password, and then confirm the new password. Determine whether the new user should have , , or privileges
  • D-Link DGS-3308TG | Product Manual - Page 70
    Guide Configuration Yes Network Monitoring Yes Community Strings and Trap Stations Yes Update Firmware and Configuration Yes Files System Utilities Yes Factory Reset are now ready to continue configuring the Switch. Save Changes The DGS-3308 has two levels of memory; normal RAM and non-
  • D-Link DGS-3308TG | Product Manual - Page 71
    8-port Gigabit Ethernet Switch User's Guide Figure 6-5. Main Menu Figure 6-6. Save Changes screen Once the Switch configuration settings have been saved to NV-RAM, they become the default settings for the switch. These settings will be used every time the Switch is rebooted. 61
  • D-Link DGS-3308TG | Product Manual - Page 72
    8-port Gigabit Ethernet Switch User's Guide Reboot The only way to change the configuration stored in NV-RAM is to save a new configuration using Save Changes from the Main Menu or to execute a factory reset from the System Reboot menu (click Reboot on the Main Menu). This will clear all settings
  • D-Link DGS-3308TG | Product Manual - Page 73
    8-port Gigabit Ethernet Switch User's Guide Figure 6-8. Reboot screen Highlight Yes and press Enter user, from the login screen: 1. Type in your username and press Enter. 2. Type in your password and press Enter. 3. The Main Menu screen will be displayed based on your access level or privilege.
  • D-Link DGS-3308TG | Product Manual - Page 74
    8-port Gigabit Ethernet Switch User's Guide Figure 6-9. Setup Users Accounts screen 1. Toggle the Action: field using the space bar to choose Add, Update, or Delete. 2. Type in the Username for the user account you wish to change and enter the Old Password for that user account. 3. You can now
  • D-Link DGS-3308TG | Product Manual - Page 75
    8-port Gigabit Ethernet Switch User's Guide Highlight Setup User Accounts from the Main Menu. The current user accounts can be read from the Setup User Accounts screen that is displayed. Deleting a
  • D-Link DGS-3308TG | Product Manual - Page 76
    User's Guide Switch Information Highlight Switch Information from the Main Menu and press Enter: Figure 6-11. Switch Information screen The Switch Information shows the type of switch (Layer 3), which (if any) external modules are installed, and the Switch's MAC Address (assigned by the factory and
  • D-Link DGS-3308TG | Product Manual - Page 77
    8-port Gigabit Ethernet Switch User's Guide Figure 6-12. Power Supply and Cooling Fan Status screen IP Setup Some settings must be entered to allow the Switch to be managed from an
  • D-Link DGS-3308TG | Product Manual - Page 78
    8-port Gigabit Ethernet Switch User's Guide Figure 6-13. IP Setup screen Configuring the a DHCP server to provide it with this information before using the default or previously entered settings. • Manual - Allows the entry of an IP address, Subnet Mask, and a Default Gateway for the Switch. These
  • D-Link DGS-3308TG | Product Manual - Page 79
    8-port Gigabit Ethernet Switch User's Guide § Subnet Mask - A Bitmask that determines the extent of to receive the SNMP traps from the Switch. The SNMP Community String is similar to a password in that stations that do not know the correct string cannot receive or request SNMP information from
  • D-Link DGS-3308TG | Product Manual - Page 80
    Setup Trap Recipients 8-port Gigabit Ethernet Switch User's Guide Figure 6-15. Setup Trap Recipients screen Configure Ports Highlight Configure Ports from the Main Menu and press Enter: 70
  • D-Link DGS-3308TG | Product Manual - Page 81
    8-port Gigabit Ethernet Switch User's Guide Figure 6-16. Configure Ports screen To configure a specific port, toggle the Configure Port from [ ] to [ ] field until the appropriate port numbers appear. Toggle the State:< >
  • D-Link DGS-3308TG | Product Manual - Page 82
    8-port Gigabit Ethernet Switch User's Guide Switch Operation Mode Note: The Switch will retain switching process is based upon the MAC addresses (as in Layer 2 above). 802.1Q VLANs are supported and the Switch is considered as a VLAN-tag aware device. The Switch must be rebooted when changing
  • D-Link DGS-3308TG | Product Manual - Page 83
    Switch User's Guide Highlight Switch Operation Mode on the Switch Settings menu and press Enter. Figure 6-19. Switch Mode Selection screen The field Select switch operation mode:< > can be toggled using the space bar to one of the two switch operation modes: Layer 2 Only, Support IEEE 802.1Q
  • D-Link DGS-3308TG | Product Manual - Page 84
    8-port Gigabit Ethernet Switch User's Guide Type y and press Enter. The Switch will then save the changes made during the current session and reboot. The Switch must be rebooted to change
  • D-Link DGS-3308TG | Product Manual - Page 85
    8-port Gigabit Ethernet Switch User's Guide Figure 6-22. Main Menu - Layer 2 Switching Mode Layer 2 Switch Settings Note: Layer 2 Switch functions and settings are also available when the Switch is configured to
  • D-Link DGS-3308TG | Product Manual - Page 86
    8-port Gigabit Ethernet Switch User's Guide Figure 6-23. Layer 2 Switch Settings screen The following fields can a protocol that allows members to dynamically join Multicast groups. This function is not supported in the current version of the Switch software. Broadcast/Multicast Storm Control: •
  • D-Link DGS-3308TG | Product Manual - Page 87
    8-port Gigabit Ethernet Switch User's Guide Figure 6-24. Setup Layer 3 - IP Networking menu Now highlight Setup RIP Configuration from the Setup Layer 3 IP Networking menu above and press Enter to access the following screen: Figure 6-25. Setup RIP Configuration screen 77
  • D-Link DGS-3308TG | Product Manual - Page 88
    supported when RIP is in V1 Compatible or V2 only mode. • Password:[ ] - A password manual is therefore divided into two sections for each Advanced Setup menu item to reflect the two switch operation modes - Layer 2 with IEEE 802.1Q VLAN support and IP Routing with IEEE 802.1Q VLAN support factory
  • D-Link DGS-3308TG | Product Manual - Page 89
    8-port Gigabit Ethernet Switch User's Guide Figure 6-26. VLAN Menu To create an 802.1Q VLAN, highlight Edit 802.1Q VLANs and press Enter: Figure 6-27. Edit 802.1Q VLANs menu
  • D-Link DGS-3308TG | Product Manual - Page 90
    8-port Gigabit Ethernet Switch User's Guide Choose which ports will be members of the new VLAN and enter their membership status in the Membership (E/F field. The status indicators of the individual
  • D-Link DGS-3308TG | Product Manual - Page 91
    8-port Gigabit Ethernet Switch User's Guide Figure 6-28. Edit 802.1Q VLANs menu Note: The default VLAN includes all of the ports on the Switch at first boot. As new VLANs
  • D-Link DGS-3308TG | Product Manual - Page 92
    8-port Gigabit Ethernet Switch User's Guide To configure the port settings of an 802. Protocol enables the port to dynamically become a member of a multicast group. This function is not supported in the current version of the Switch software. To edit an existing 802.1Q VLAN: Highlight VLANs
  • D-Link DGS-3308TG | Product Manual - Page 93
    8-port Gigabit Ethernet Switch User's Guide Figure 6-31. VLAN Menu To edit an existing 802.1Q VLAN, highlight Edit 802.1Q VLANs and press Enter: Figure 6-32. Edit 802.1Q VLANs
  • D-Link DGS-3308TG | Product Manual - Page 94
    8-port Gigabit Ethernet Switch User's Guide Delete mode, entire VLANs can be deleted. VLANs to be edited can be selected by either the VID:[ ] field or the VLAN Name:[ ] fields. Enter
  • D-Link DGS-3308TG | Product Manual - Page 95
    8-port Gigabit Ethernet Switch User's Guide • Ingress Filter - This enables the port to compare Protocol enables the port to dynamically become a member of a multicast group. This function is not supported in the current version of the Switch software. Setting Up IP Interfaces Note: A VLAN that
  • D-Link DGS-3308TG | Product Manual - Page 96
    8-port Gigabit Ethernet Switch User's Guide Note: Each IP interface listed above will give a maximum of 2,097,150 unique IP addresses per interface (assuming the 10.xxx.xxx.xxx notation). To
  • D-Link DGS-3308TG | Product Manual - Page 97
    8-port Gigabit Ethernet Switch User's Guide Figure 6-34. Setup IP Interface screen Toggle the Action: field to Add/Modify. Choose a name for the interface to be added and enter
  • D-Link DGS-3308TG | Product Manual - Page 98
    8-port Gigabit Ethernet Switch User's Guide Multicasting Layer 2 Multicast Setup To access the Multicasting Menu, highlight Multicasting from the Main Menu and press Enter. Figure 6-35. Multicasting Menu IGMP Snooping Settings -
  • D-Link DGS-3308TG | Product Manual - Page 99
    8-port Gigabit Ethernet Switch User's Guide Figure 6-36. IGMP Snooping screen To edit a VLAN's IGMP Snooping Settings: • Switch IGMP Snooping:< > - This field can be toggled between Enabled and Disabled using the
  • D-Link DGS-3308TG | Product Manual - Page 100
    8-port Gigabit Ethernet Switch User's Guide address remain in the IGMP address table. The default value is 260 seconds. To set the age-out timer for an individual IGMP snooping entry,
  • D-Link DGS-3308TG | Product Manual - Page 101
    Switch User's Guide Static Router Port section is repeated in the Layer 3 Multicasting section of this manual below because of the possible confusion caused by the term 'router router port on the DGS-3308 guarantees that all ports of a multicast-enabled router - attached to the DGS-3308- can reach
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    8-port Gigabit Ethernet Switch User's Guide port of the Layer 3 switch would not be able to receive UDP data streams at all of its ports unless the UDP multicast packets were
  • D-Link DGS-3308TG | Product Manual - Page 103
    8-port Gigabit Ethernet Switch User's Guide Figure 6-40. IP Multicast Settings menu Multicast Interface Configuration To configure the multicast interface, highlight Multicast Interface Configuration and press Enter. Figure 6-41. Multicast Interface Configuration screen 93
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    8-port Gigabit Ethernet Switch User's Guide • Interface Name:[ ] - Enter the name of the IP interface that is to be configured for multicasting in this field. This must be a previously configured IP interface. See Setting up IP Interfaces in Chapter 6 of this manual for more information. • IGMP
  • D-Link DGS-3308TG | Product Manual - Page 105
    8-port Gigabit Ethernet Switch User's Guide • Robustness Var:[ ] - This is a tuning variable to allow for subnetworks that are expected to lose a large number of packets. A value between 2 and 255 can be
  • D-Link DGS-3308TG | Product Manual - Page 106
    Switch User's Guide Figure 6-44. DVMRP Interface Configuration screen • Interface Name:[ ] - Enter the name of the IP interface for which DVMRP is to be configured in this field. This must be a previously defined IP interface. See Setting up IP Interfaces in Chapter 6 of this manual for more
  • D-Link DGS-3308TG | Product Manual - Page 107
    8-port Gigabit Ethernet Switch User's Guide • Route Metric:[1 ] - This field allows an entry between 1 and 255 and defines the route cost for the IP interface. this field. This must be a previously defined IP interface. See Setting up IP Interfaces in Chapter 6 of this manual for more information. 97
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    Switch User's Guide Note: The This section is repeated in the Layer 2 Multicasting section of this manual above because of the possible confusion caused by the term 'router router port on the DGS-3308 guarantees that all ports of a multicast-enabled router - attached to the DGS-3308 - can reach
  • D-Link DGS-3308TG | Product Manual - Page 109
    8-port Gigabit Ethernet Switch User's Guide Highlight Static Router Port Settings from the Multicasting Menu and press Enter. Figure 6-46. Static Router Port Setup screen Note: All IGMP Report packets will
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    8-port Gigabit Ethernet Switch User's Guide Mirroring To configure a port for port mirroring, highlight Mirroring from the Main Menu and press Enter. Figure 6-47. Mirroring Menu To select the target port, highlight Target Port Selection and press Enter. 100
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-48. Target Port Selection screen The target port is the port where information will be duplicated and sent for capture and network analysis. This
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    8-port Gigabit Ethernet Switch User's Guide The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Entries can be added, modified or deleted based upon the
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    8-port Gigabit Ethernet Switch User's Guide Filtering Layer 2 Filtering Layer 2 Only switch operation mode. To enter a MAC address into the filtering table: Highlight Filtering from the Main Menu and press Enter. Figure 6-51. Filtering Menu Highlight MAC Address Filter and press Enter. 103
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-52. Setup MAC Address Filter screen The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the VLAN
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-53. Filtering Menu To enter a MAC address into the filtering table, highlight MAC Address Filter and press Enter. Figure 6-54. Setup MAC Address Filter
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    8-port Gigabit Ethernet Switch User's Guide The Source/Destination: < > field can be toggled between Src. (source), Dst. (destination), and Either. The MAC address entered into the filtering table can be filtered
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    8-port Gigabit Ethernet Switch User's Guide Forwarding Layer 2 Forwarding Layer 2 Only switch operation mode To enter a MAC address into the switch's forwarding table, highlight Forwarding from the Main Menu and press
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-57. MAC Address Forwarding screen The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the VLAN ID
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-58. Forwarding Menu Highlight MAC Address Forwarding and press Enter. Figure 6-59. MAC Address Forwarding screen The Action:< > field can be toggled between Add/
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    8-port Gigabit Ethernet Switch User's Guide Highlight APPLY and press enter to make the changes current. Use Save Changes from the Main Menu to enter the changes into NV-RAM. IP
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-61. Setup Static ARP Entries screen The Action:< > field can be toggled between Add/Modify and Delete using the space bar. Enter the IP
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    User's Guide Figure 6-62. Configure Spanning Tree screen Note: The Spanning Tree Protocol (STP) operates on two levels: on the switch level, the settings are globally implemented. On the port level, the settings are implemented on a per user-defined Group basis. Note: The factory default setting
  • D-Link DGS-3308TG | Product Manual - Page 123
    Guide Max. Age 2 x (Hello Time + 1 second) Port Group Spanning Tree Settings In addition to setting Spanning Tree parameters for use on the switch level, the DGS links will be blocked, just as redundant links are blocked on the switch level. Note: The STP on the switch level blocks redundant links
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-64. STP Port Settings screen The STP port the backbone of a network. Note: The DGS-3308 allows the creation of up to 4 port trunk groups, each consisting of up to 4 links (ports). The aggregated links must be contiguous (they must have sequential
  • D-Link DGS-3308TG | Product Manual - Page 125
    8-port Gigabit Ethernet Switch User's Guide Load balancing is automatically applied to the links in the port trunk group, and a link failure within the group causes the network traffic to be directed to the remaining links in the group. Note: The Spanning Tree Protocol will treat a port trunk group
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    8-port Gigabit Ethernet Switch User's Guide Switch Utilities Layer 2 Switch Utilities To access the Switch Utilities menu, highlight Utilities from the Main Menu and press Enter. Figure 6-66. Switch Utilities menu Note: Trivial File Transfer Protocol (TFTP) services allow the switch firmware to
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-67. Upgrade Firmware from TFTP Server screen Enter the server IP address and the path and filename of the firmware file on the server.
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-68. Download Configuration File from TFTP Server screen Enter the IP address of the server and specify the location of the switch configuration file
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-69. Upload Configuration File to TFTP Server screen Enter the IP address of the server and the path and filename of the settings file
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-70. Save Log to TFTP Server screen Enter the IP address of the server and the path and filename for the history log on
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-72. Switch Utilities menu Highlight BOOTP/DHCP Relay on the Switch Utilities menu and press Enter. Figure 6-73. BOOTP/DHCP Relay screen Toggle between
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    8-port Gigabit Ethernet Switch User's Guide seconds) that the Switch will wait before forwarding a BOOTREQUEST packet. If the value in the seconds field of the packet is less than the relay
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-75. DNS Relay screen The DNSR Status can be toggled between Disabled and Enabled using the space bar. Toggle the field to Enabled,
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-76. DNS Relay - Static table configuration screen The current. Use Save Changes to enter the table into NV-RAM. Network Monitoring The DGS-3308 provides extensive network monitoring capabilities. Layer 2 Network Monitoring To display the network
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-77. Network Monitoring Menu Port Utilization To view the port utilization, highlight Port Utilization on the Network Monitoring Menu and press Enter. Figure 6-78. Port Utilization screen 125
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    8-port Gigabit Ethernet Switch User's Guide The Port Utilization screen shows the number of packets transmitted and received per second and calculates the percentage of the total available bandwidth being used
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-80. Port Packet Analysis screen In addition to the size of packets received or transmitted by the selected port, statistics on the number of
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-81. Browse MAC Address Table screen The Browse By: field can be toggled between ALL, MAC address, Port, and VLAN. This sets a filter
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-82. IGMP Snooping screen Switch History To view the switch history log, highlight Switch History from the Network Monitoring Menu and press Enter. Figure 6-83. Switch History screen 129
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    8-port Gigabit Ethernet Switch User's Guide Layer 3 Network Monitoring When the Switch is in Layer 3 (IP Routing) mode, several items are added to the Network Monitoring Menu. The following items are
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-85. Browse IP Address screen To display a particular IP address, enter the IP address in the Jump to IP Address:[0.0.0.0] field, highlight GO, and
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-86. Routing Table screen To display a particular Destination IP address, enter the IP address in the Jump to Destination Address:[0.0.0.0] field, the gateway address
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-87. ARP Table screen To display a particular IP interface or an IP address, enter the IP interface name in the Jump to Interface Name:[ ]
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-88. Browse Router Port screen To display a particular router port, enter the VLAN ID number in the Jump to VID:[0.0.0.0] field, highlight GO, and
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-89. Browse IP Multicast Forwarding Table screen To display a particular multicast group, enter the IP address in the Jump to Multicast Group:[0.0.0.0] field, the
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-90. IGMP Group Table screen To display an IGMP Group Table, enter the name of the routing interface in the Jump to Interface Name:[0.0.0.0]
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-91. DVMRP Routing Table screen To display a particular source TABLE and pressing Enter will empty the table. Reboot and Factory Reset To access the reboot, save, and factory reset options, highlight Reboot on the Main Menu and press Enter. 137
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-92. Reboot menu The reboot options are as follows: is identical to using Factory Reset and then Reboot. • Reboot & Load Factory Default Configuration Except IP Address restarts the switch using the default factory configuration, except the user
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    8-port Gigabit Ethernet Switch User's Guide Figure 6-93. Reboot screen To reboot the Switch, in the mode entered above, highlight Yes and press Enter. Note: The factory defaults for the DGS-3308 are listed in Appendix D of this manual. 139
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    8-port Gigabit Ethernet Switch User's Guide 7 WEB-BASED NETWORK MANAGEMENT Introduction The DGS-3308 offers an embedded Web-based ( is in Layer 2 Only mode. Before You Start The DGS-3308 Gigabit Ethernet Layer 3 Switch supports a wide array of functions and gives great flexibility and increased
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    8-port Gigabit Ethernet Switch User's Guide 3. Determine which network resources must be shared by the subnets in case of a link or device failure. The DGS-3308 Series Spanning Tree function can be used to block the redundant link until it is needed. VLAN Layout VLANs on the DGS-3308 have rather more
  • D-Link DGS-3308TG | Product Manual - Page 152
    or Microsoft Internet Explorer. Follow the installation instructions for the browser. The second and last the Switch. This can be done manually through a console (see the factory default IP address for the Switch is 10.90.90.90. In the page that opens, click on the Login to DGS-3308FG (or DGS-3308TG
  • D-Link DGS-3308TG | Product Manual - Page 153
    User's Guide Figure 7-3. User Accounts Control Table - Add screen 1. Enter the new user name, assign an initial password, and then confirm the new password. Yes Update Firmware and Configuration Yes Files System Utilities Yes Factory Reset Yes Reboot Switch Yes Read Only Read Only Read
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    the switch. These settings will be used every time the Switch is rebooted. Factory Reset The following menu is used to restart the Switch using only the configuration that was supplied by the factory. A factory reset returns all configuration options to their default values and restores the Switch
  • D-Link DGS-3308TG | Product Manual - Page 155
    Guide Figure 7-5. Factory Reset to Default Value screen Select Yes if you want the Switch to retain its current IP address. Select No to reset the Switch's IP address to the factory default, 10.90.90.90. Click the Reset to Factory Address • Administrator password In addition, manually as follows: 145
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    8-port Gigabit Ethernet Switch User's Guide 1. Starting at the main window of the User Interface, click address into NV-RAM. Setting the Administrator Password Management access to the Switch is restricted based on the administrator password. Administrators have read/write access for parameters
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-6. Save Changes screen Starting and Stopping the prompting you to enter the user name and password for management access. Figure 7-7. Enter Network Password screen Use of the correct User Name and Password will allow read/write access to the Switch
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    8-port Gigabit Ethernet Switch User's Guide Areas of the User Interface The figure below shows the user interface. The user interface is divided into 3 distinct areas. Area 2 Area 1 Area 3 Area 1 2 3 Figure 7-8.
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    8-port Gigabit Ethernet Switch User's Guide 149
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    8-port Gigabit Ethernet Switch User's Guide Layer 2 Mode 150
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    8-port Gigabit Ethernet Switch User's Guide 151
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    8-port Gigabit Ethernet Switch User's Guide 152
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    8-port Gigabit Ethernet Switch User's Guide Switch IP Setup Use the IP Setup window to set the boot-up option, or to manually configure the IP address for the agent module. The window shown below is described below in the following table. Figure 7-9. IP Setup screen Items on
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-10. Switch Information - Basic Settings screen Items on the screen above include: • Device Type - Type of Switch. • MAC Address - The factory assigns each Switch a unique MAC address. • Boot PROM Version - Device startup code. • Firmware Version -
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-11. Power Supply & Cooling Fan Status screen Configure Ports You can select a port to be configured by clicking on the port at the top
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    Switch User's Guide • Flow Control - Allows flow control to be Enabled or Disabled for the selected port. • Configure Port from 1 to - Select the port range to be configured. Switch Settings The Switch can operate in one of two modes: • Layer 2 Only with IEEE 802.1Q VLAN support - The switching
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    8-port Gigabit Ethernet Switch User's Guide Layer 2 Switch Settings Note: Layer 2 Switch functions and settings are also available when the Switch is configured to operate in the IP Routing (Layer 3) mode.
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    8-port Gigabit Ethernet Switch User's Guide • Rx Mode - Displays whether received RIP packets will prevents the reception of RIP packets. • Auth. - Displays whether RIP is configured to use a password. • Edit - A link to the Setup RIP - Edit screen. Setup RIP - Edit The following menu is used to edit
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    8-port Gigabit Ethernet Switch User's Guide Note: A VLAN that does not have a corresponding IP to this IP interface. • Active - Displays whether the IP interface is active or inactive. • New - A link to the IP Subnet - Add menu. • Delete - Click this icon to delete an IP subnet from this table
  • D-Link DGS-3308TG | Product Manual - Page 170
    8-port Gigabit Ethernet Switch User's Guide • Interface Name - A name given to identify this IP interface. • IP • VLAN Name - The name of the VLAN for which ports are to be configured. • New - A link to the 802.1Q Static VLANs Entry Settings - Edit window. • Delete - Click this icon to delete an
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-20. 802.1Q Static VLANs Entry Settings - Edit screen Items on the screen above include: • VLAN (VID) - The VLAN ID of the VLAN that
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    8-port Gigabit Ethernet Switch User's Guide Port VLAN ID (PVID) The Port VLAN ID is used by the port to tag outgoing, untagged packets, and to make filtering decisions about incoming
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    8-port Gigabit Ethernet Switch User's Guide Port GVRP Settings The following read-only window is configure the Port Group Multicast Registration Protocol (GMRP) on the Switch. This function is not supported in the current version of the Switch software. Figure 7-25. Port GMRP Settings screen Items
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-26. Setup IEEE 802.1Q Multicast Forwarding screen Items on the screen above include: • MAC Address - The MAC address of the static source of
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    8-port Gigabit Ethernet Switch User's Guide • Switch IGMP Snooping - This enables or disables IGMP snooping on the Switch. • Querier State - Select the version number of the IGMP to be used for
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-29. IGMP Interface Configuration screen Items on the screen above include: • Interface Name - The name of the IP interface (previously defined) on the switch
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-30. DVMRP Interface Configuration screen Items on the screen above include: • Interface Name - The name of the IP interface (previously defined) on the Switch
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-31. PIMDM Interface Configuration screen Items on the screen above include: • Interface Name - The name of the IP interface (previously defined) on the switch
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    8-port Gigabit Ethernet Switch User's Guide • VID - The VLAN ID of the VLAN the static router port resides on. • Port Members - The ports that are set up as static router ports. • New - A link to the Static Router Port Settings - Add window. • Delete - Click on the icon to delete the entry from the
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    MAC Address Priority 8-port Gigabit Ethernet Switch User's Guide Figure 7-34. Setup MAC Address Priority screen Items on the screen above include: Add an Entry • VID - The VLAN ID of the VLAN on which
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    8-port Gigabit Ethernet Switch User's Guide The Target Port Selection window can be used to designate a single RJ-45 port pair for mirroring as shown below: Target Port Selection The following
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    Switch User's Guide • Direction detect and disable network loops, and to provide backup links between switches, bridges, or routers. This allows the Switch STP Group Configuration Figure 7-37. STP Group Configuration screen The DGS-3308 allows you to configure Spanning Tree Groups that consist of
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-38. STP Group Configuration - Add screen Items on the screen above include: • Group Name - The group name of the Spanning Tree group to be
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    8-port Gigabit Ethernet Switch User's Guide • Priority:[0..65535] - Device priority used in selecting the root device, root port, and designated port. The device with the highest priority becomes the STP root
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-39. STP Group Configuration - Edit screen Items on the screen above include: • Group Name - The group name of the Spanning Tree group being edited. •
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-40. STP Port Settings screen Items on the screen above to 4 trunk connections (combining 2 to 8 ports into a fat pipe) between any two DGS-3308 or other Layer 2 switches. However, before making any physical connections between devices, use the
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    8-port Gigabit Ethernet Switch User's Guide • Enable the trunk prior to connecting any cable between the is usually the same as the Master Port. However, if the link is down for the Master Port, the closest port with a valid link will become the new anchor port. Forwarding The following figures and
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    MAC Forwarding 8-port Gigabit Ethernet Switch User's Guide Figure 7-42. MAC Address Forwarding screen Items on the screen above include: Add an Entry • MAC Address - The MAC address to which packets will be
  • D-Link DGS-3308TG | Product Manual - Page 189
    8-port Gigabit Ethernet Switch User's Guide • IP Address - Displays the IP addresses statically entered into the between the IP address and the Gateway. This is a number between 1 and 15. • New - A link to Static/Default Routes - Add window. • Delete - Click on this icon to delete the entry. Static/
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-45. Static ARP screen Items on the screen or station. • MAC Address - Displays the MAC address corresponding to the IP address above. • New - A link to the Static ARP - Add window. • Delete - Click on the icon to delete the static ARP entry.
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    8-port Gigabit Ethernet Switch User's Guide MAC Filtering Figure 7-47. Setup MAC Address Filter screen Items on the screen above include: Add an Entry • VID - The VLAN ID number of the
  • D-Link DGS-3308TG | Product Manual - Page 192
    8-port Gigabit Ethernet Switch User's Guide Figure 7-48. Filter Address Setup screen Filter Address Table Items on the screen above include: • IP Address - The IP address that is to be filtered
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-49. BOOTP/DHCP Relay screen Items on the screen above include: • BOOTP/DHCP Relay Status - Allows the BootP/DHCP relay function to be Enabled
  • D-Link DGS-3308TG | Product Manual - Page 194
    8-port Gigabit Ethernet Switch User's Guide • Interface Name - The subnet name, or IP interface name, of the network that the BOOTP server is located on. • BOOTP/DHCP Server - The IP address
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    8-port Gigabit Ethernet Switch User's Guide The following window is used to set up the static DNS Relay function on the Switch. Figure 7-52. Static DNS Relay Setup screen Items on
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-53. Management Station IP Settings screen The item on the screen above is: • IP Address - The IP address of the management station that you
  • D-Link DGS-3308TG | Product Manual - Page 197
    8-port Gigabit Ethernet Switch User's Guide • Rights - Specifies the level of access for an authorized user. The levels can be Read, for read only, or R/W, for read-write. • Status - Specifies whether
  • D-Link DGS-3308TG | Product Manual - Page 198
    User Account - Add window. • Pointer Icon - A link to the Setup User Account - Edit window. • Delete - Click this icon to remove a user from this table. Setup User Account - Add Figure 7-57. Setup User Account - Add screen Enter the new user name, assign an initial password, and then confirm the new
  • D-Link DGS-3308TG | Product Manual - Page 199
    port Gigabit Ethernet Switch User's Guide Enter the old password, the new password, and then confirm the new password. Determine whether the new user Rate - Specifies the rate data will be exchanged over the serial link. The default value is 9600 baud. • Data Bits - Specifies the number of bits
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    8-port Gigabit Ethernet Switch User's Guide • Time Out - Specifies length of time a Telnet session can be idle. When this time has expired, the Switch will disconnect the user. The default value
  • D-Link DGS-3308TG | Product Manual - Page 201
    8-port Gigabit Ethernet Switch User's Guide Figure 7-61. Port Error Packet screen Items on the screen above include: • Update Interval - The interval (in seconds) that the table is updated. The default
  • D-Link DGS-3308TG | Product Manual - Page 202
    8-port Gigabit Ethernet Switch User's Guide • Drop Pkts - The total number of events in which packets were dropped due to a lack of resources. • Tx - Transmitted packets. • ExDefer - The number of frames
  • D-Link DGS-3308TG | Product Manual - Page 203
    8-port Gigabit Ethernet Switch User's Guide • Frame Size/Type - The size in octets (bytes) of frames transferred through the switch. • Frames - The total number of frames transferred through the switch of
  • D-Link DGS-3308TG | Product Manual - Page 204
    8-port Gigabit Ethernet Switch User's Guide Address Table The following section describes how to browse the Switch's address tables. Browse MAC Address Table The Web Manager allows the Switch's MAC address table (sometimes referred to as a forwarding table) to be viewed. 194
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-64. Browse MAC Address Table screen Items on the screen above include: • MAC Address Aging Time (10...1000000 sec) - Specifies the length of time a
  • D-Link DGS-3308TG | Product Manual - Page 206
    8-port Gigabit Ethernet Switch User's Guide Figure 7-65. IP Address Table screen To display a particular IP address, enter the IP address in the Jump to IP Address field and click GO. Routing Table The Web Manager allows you to view the contents of the routing table. 196
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-66. Routing Table screen To display a particular Destination IP address, enter the IP address, netmask, and default gateway in the three fields above and
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    8-port Gigabit Ethernet Switch User's Guide Figure 7-67. ARP Table screen To browse the ARP table, enter the IP interface name in the first field, the IP address in the second
  • D-Link DGS-3308TG | Product Manual - Page 209
    8-port Gigabit Ethernet Switch User's Guide Figure 7-68. GVRP Status screen Browse Router Port A static router port is simply a port that has a router attached to it. Generally, this router would have a
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    8-port Gigabit Ethernet Switch User's Guide • Port Members - Ports that are router ports, both statically and dynamically assigned. IGMP Snooping The Switch's IGMP snooping table can be browsed using the Web
  • D-Link DGS-3308TG | Product Manual - Page 211
    8-port Gigabit Ethernet Switch User's Guide IGMP Group Table The Web Manager allows you to display an IGMP Group Table. Figure 7-72. IGMP Group Table screen To display an IGMP group
  • D-Link DGS-3308TG | Product Manual - Page 212
    8-port Gigabit Ethernet Switch User's Guide Figure 7-74. Switch History screen Items on the screen above or Layer 3 mode-offers a range of utilities, including various TFTP services. Trivial File Transfer Protocol (TFTP) services allow the Switch firmware to be upgraded by downloading a new firmware
  • D-Link DGS-3308TG | Product Manual - Page 213
    8-port Gigabit Ethernet Switch User's Guide Upgrade Firmware from TFTP Server Note: The TFTP server must be on the same IP subnet as the Switch. The following figure and table describe
  • D-Link DGS-3308TG | Product Manual - Page 214
    8-port Gigabit Ethernet Switch User's Guide Figure 7-77. Upload Configuration File to TFTP Server screen Items The full file name, including path, of the history file on the TFTP server. Save Changes The DGS-3308 has two levels of memory, normal RAM and non-volatile or NV-RAM. To retain any
  • D-Link DGS-3308TG | Product Manual - Page 215
    8-port Gigabit Ethernet Switch User's Guide Figure 7-79. Save Changes screen Once the Switch configuration settings have been saved to NV-RAM, they become the default settings for the Switch. These settings will be used every time the Switch is rebooted. Factory Reset The following menu is used to
  • D-Link DGS-3308TG | Product Manual - Page 216
    8-port Gigabit Ethernet Switch User's Guide Restart System The following menu is used to restart (reboot) the Switch. Click Yes to save the current Switch configuration to non-volatile RAM (flash
  • D-Link DGS-3308TG | Product Manual - Page 217
    Gigabit Ethernet Switch User's Guide A TECHNICAL SPECIFICATIONS General Standards: Protocols: Data Transfer Rates: Ethernet Fast Ethernet Gigabit Ethernet Topology: Network Cables: 10BASE-T: IEEE 802.3 10BASE-T Ethernet (DGS-3308TG) IEEE 802.3u 100BASE-TX Fast Ethernet (DGS-3308TG) IEEE 802.3z
  • D-Link DGS-3308TG | Product Manual - Page 218
    8-port Gigabit Ethernet Switch User's Guide General 1000BASELX: Fiber Optic: Number of Ports: 50µm and 62.5µm multi-mode fiber or 10µm singlemode fiber IEC 793-2:1992 Type A1a - 50/125um multimode
  • D-Link DGS-3308TG | Product Manual - Page 219
    8-port Gigabit Ethernet Switch User's Guide Performance Forwarding Table Age Time: IP Address Max age: 10-1000000 seconds. Default = 300. 2K per device 209
  • D-Link DGS-3308TG | Product Manual - Page 220
    8-port Gigabit Ethernet Switch User's Guide B RJ-45 PIN SPECIFICATION When connecting the Switch to another switch, a bridge or a hub, a normal cable is necessary. Please review the following for matching cable
  • D-Link DGS-3308TG | Product Manual - Page 221
    file name Firmware file name Out-of-band baud rate RS232 mode IP address Subnet mask Default Gateway BootP service TFTP server IP address IGMP Snooping Console time out User name Password Device STP Port STP Port enable Bridge max age Bridge hello time Bridge forward delay Bridge priority Port STP
  • D-Link DGS-3308TG | Product Manual - Page 222
    8-port Gigabit Ethernet Switch User's Guide D UNDERSTANDING AND TROUBLESHOOTING THE SPANNING TREE PROTOCOL When the spanning-tree algorithm determines a port should be transitioned to the forwarding state, the following occurs: • The port is put
  • D-Link DGS-3308TG | Product Manual - Page 223
    8-port Gigabit Ethernet Switch User's Guide Listening State The listening state is the first transition for a port from the blocking state. Listening is an opportunity for the switch to receive BPDUs
  • D-Link DGS-3308TG | Product Manual - Page 224
    8-port Gigabit Ethernet Switch User's Guide Learning State A port in the learning state prepares to participate in frame forwarding. The port enters the learning state from the listening state. A port in
  • D-Link DGS-3308TG | Product Manual - Page 225
    8-port Gigabit Ethernet Switch User's Guide A port in the forwarding state does the following: • Forwards packets received from the network segment to which it is attached. • Forwards packets sent from another
  • D-Link DGS-3308TG | Product Manual - Page 226
    Ethernet Switch User's Guide • Does not add addresses to its forwarding database. • Receives BPDUs, but does not direct them to the system CPU. • Does not receive BPDUs for transmission from the system CPU. • Receives and responds to network management messages. Troubleshooting STP Spanning Tree
  • D-Link DGS-3308TG | Product Manual - Page 227
    8-port Gigabit Ethernet Switch User's Guide In this example, B has been elected as the designated bridge mismatch in the duplex state of two ports is a very common configuration error for a point-to-point link. If one port is configured as a full duplex, and the other port is left in auto-negotiation
  • D-Link DGS-3308TG | Product Manual - Page 228
    Link Unidirectional links can be caused by an undetected failure in one side of a fiber cable, or a problem with a ports transceiver. Any failure that allows a link BPDU would reset the timer. If the MAX AGE is set too low, this time is reduced. Resource Errors The DGS-3308FG/DGS-3308TG Layer 3
  • D-Link DGS-3308TG | Product Manual - Page 229
    a time, and then checking for a restoration of the user's connectivity will identify the link that is causing the problem, if time allows. Connectivity will be restored immediately after disabling a data loop. Avoiding Trouble Know where the root is located. Although the STP can elect a root bridge
  • D-Link DGS-3308TG | Product Manual - Page 230
    8-port Gigabit Ethernet Switch User's Guide This is a common network design. The switches C and D have redundant links to the backbone switches A and B using trunks. Trunks, by default, carry all the VLAN traffic from VLAN 1 and VLAN 2. So switch C is not only receiving
  • D-Link DGS-3308TG | Product Manual - Page 231
    single blocked port per VLAN and allows the removal of all redundant links by removing switch A or B from the network. Impact of Layer 3 Switching. The IP routing operational mode of the DGS-3308FG/DGS-3308TG Layer 3 switch can accomplish the following: • Building a forwarding table, and exchanging
  • D-Link DGS-3308TG | Product Manual - Page 232
    8-port Gigabit Ethernet Switch User's Guide Using layer 3 switches and IP routing eliminates the need for STP port blocking because the packets are routed by destination addresses. The link redundancy remains, and relying on the routing protocols gives a faster convergence than with STP. The
  • D-Link DGS-3308TG | Product Manual - Page 233
    8-port Gigabit Ethernet Switch User's Guide E BRIEF REVIEW OF BITWISE LOGICAL OPERATIONS AND The logical AND operation compares 2 bits and if they are both "1", then the result is "1", otherwise, the result
  • D-Link DGS-3308TG | Product Manual - Page 234
    8-port Gigabit Ethernet Switch User's Guide INDEX A AC inputs 214 AC power cord 7 Add a Static Router Mode 162 Browse MAC Address Table 200 Browse the Router Port 205 C Changing your Password 64 Coll 198 Community Name 16 Configuration Files 209 Configure IP Address 69 Connecting to
  • D-Link DGS-3308TG | Product Manual - Page 235
    Guide Mirroring 175 module 10 Multicasting 169 N Network Classes Class A, B, C for Subnet Mask 70 NV-RAM 62, 149 O Operating Temperature 214 Out-of-Band/Console Setting menu 72 Oversize 197 P password Type Authentication Failure 17 Cold Start 16 Link Change Event 17 New Root 17 Topology
  • D-Link DGS-3308TG | Product Manual - Page 236
    (New Zealand): 0800-900900 URL: www.dlink.com.au E-MAIL: [email protected] & [email protected] D-Link Canada 2180 Winston Park Drive, Oakville, FAX: 91-22-652-8914 URL: www.dlink-india.com E-MAIL: [email protected] D-Link Mediterraneo Srl/D-Link Italia Via Nino Bonnet n. 6/b, 20154, Milano
  • D-Link DGS-3308TG | Product Manual - Page 237
    www.dlink.ru E-MAIL: [email protected] Singapore D-Link International dlink.com.sg URL: www.dlink-intl.com South Africa D-Link 61901 E-MAIL: [email protected] URL: www.dlink.se Taiwan D-Link Taiwan 2F, No -235-5511 URL: www.dlink.co.uk E-MAIL: [email protected] U.S.A. D-Link U.S.A. 53 Discovery Drive,
  • D-Link DGS-3308TG | Product Manual - Page 238
    full address: Answers to the following questions help us to support your product: 1. Where and how will the product primarily oOthers 4. What network operating system(s) does your organization use ? oD-Link LANsmart oNovell NetWare oNetWare Lite oSCO Unix/Xenix oPC NFS o3Com 3+Open
  • D-Link DGS-3308TG | Product Manual - Page 239
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DGS-3308 Series
8-Port Gigabit Layer 3 Switch
User’s Guide
First Edition (December 2001)
651FG3308015
Printed In Taiwan
RECYCLABLE