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Link Aggregation Groups, LAG Configuration

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GS516TP Gigabit Smart Switches Link Aggregation Groups Link aggregation groups (LAGs), which are also known as port channels, allow you to combine multiple full-duplex Ethernet links into a single logical link. Network devices treat the aggregation as if it were a single link, which increases fault tolerance and provides load sharing. You assign the LAG VLAN membership after you create a LAG. The LAG by default becomes a member of the management VLAN. A LAG interface can be either static or dynamic, but not both. All members of a LAG must participate in the same protocols. A static port channel interface does not require a partner system to be able to aggregate its member ports. Static LAGs are supported. When a port is added to a LAG as a static member, it does not transmit or receive LAGPDUs. This switch supports eight LAGs. From the LAGs menu, you can access features described in the following sections: • LAG Configuration • LAG Membership • LACP Configuration • LACP Port Configuration LAG Configuration Use the LAG Configuration screen to group one or more full-duplex Ethernet links to aggregate together to form a link aggregation group, which is also known as a port channel. The switch treats the LAG as if it were a single link.  To configure LAG settings: 1. Select Switching > LAG > Basic > LAG Configuration. 2. Select the check box next to the LAG to configure. You can select multiple LAGs to apply the same settings to the selected interfaces. Select the check box in the heading row to apply the same settings to all interfaces. 3. Configure or view the following settings: • Description. Specify the description string to be attached to a LAG. It can be up to 64 characters in length. • LAG ID. Displays the number assigned to the LAG. This field is read-only. • Admin Mode. Select Enable or Disable from the list. When the LAG (port channel) is disabled, no traffic flows and LAGPDUs are dropped, but the links that form the LAG (port channel) are not released. The factory default is Enable. • STP Mode. Select Enable or Disable from the list to specify the Spanning Tree Protocol administrative mode associated with the LAG. • LAG Type. Specifies whether the LAG is configured as a static or LACP port. When the LAG is static, it does not transmit or process received LAGPDUs. For example the 61

Section	Page
GS516TP Gigabit Smart Switches	1
Contents	3
1. Getting Started	9
Getting Started with the NETGEAR Switch	10
Switch Management Interface	11
Connect the Switch to the Network	12
Discover a Switch in a Network with a DHCP Server	13
Switch Discovery in a Network Without a DHCP Server	15
Configure the Network Settings on the Administrative System	17
Access the Management Interface from the Web	19
Understand the User Interface	19
Use SNMP	24
Interface Naming Convention	25
2. Configuring System Information	26
Management	27
System Information	27
IP Configuration	28
IPv6 Network Configuration	29
IPv6 Network Neighbors	30
Time	31
DNS	34
Green Ethernet Configuration	35
PoE	39
PoE Global Configuration	41
PoE Port Configuration	41
PoE PD Port Status	42
Timer Global Configuration	43
SNMP	44
SNMP v1/v2	44
Trap Flags	45
SNMP Supported MIBs	46
SNMP v3 User Configuration	46
LLDP	47
LLDP Configuration	47
LLDP Port Settings	48
LLDP-MED Network Policy	49
LLDP-MED Port Settings	49
Local Information	50
Neighbors Information	51
Services—DHCP Snooping	55
DHCP Snooping Global Configuration	55
DHCP Snooping Interface Configuration	55
DHCP Snooping Binding Configuration	56
DHCP Snooping Persistent Configuration	57
3. Configuring Switching Information	58
Ports	59
Global Configuration	59
Port Configuration	59
Link Aggregation Groups	61
LAG Configuration	61
LAG Membership	62
LACP Configuration	63
LACP Port Configuration	63
VLANs	64
VLAN Configuration	64
VLAN Membership Configuration	65
Port VLAN ID Configuration	66
Voice VLAN	67
Voice VLAN Properties	67
Voice VLAN Port Setting	67
Voice VLAN OUI	68
Auto-VoIP Configuration	69
Spanning Tree Protocol	70
STP Configuration	70
CST Configuration	72
CST Port Configuration	73
CST Port Status	74
Rapid STP	75
MST Configuration	75
MST Port Configuration	76
Multicast	79
MFDB	79
Auto-Video Configuration	80
IGMP Snooping	81
IGMP Snooping Querier	84
MLD Snooping	86
Static Multicast Address	88
Forwarding Database	91
Address Table	91
Dynamic Address Configuration	92
Static MAC Address	92
4. Configuring Routing	93
Configure IP Settings	94
Configure VLAN Routing	95
VLAN Routing Wizard	95
Configure VLAN Routing	96
Configure and View Routes	97
Configure ARP	99
ARP Cache	100
ARP Entry Configuration	100
Global ARP Configuration	101
ARP Entry Management	102
5. Configure Quality of Service	103
Class of Service	104
Basic CoS Configuration	104
CoS Interface Configuration	105
Queue Configuration	105
802.1p to Queue Mapping	106
DSCP to Queue Mapping	107
Differentiated Services	108
Defining DiffServ	108
Diffserv Configuration	109
DSCP Violate Action Mapping	109
Class Configuration	110
IPv6 Class Configuration	111
Policy Configuration	112
Service Configuration	114
Service Statistics	114
6. Managing Device Security	116
Management Security Settings	117
Change Password	117
Configure RADIUS Settings	117
Configure TACACS+	120
Authentication List Configuration	121
Configure Management Access	124
HTTP Configuration	124
Secure HTTP Configuration	124
Certificate Management	125
Access Control	125
Port Authentication	127
802.1x Configuration	127
Port Authentication	128
Port Summary	130
Traffic Control	132
Storm Control	132
Port Security Interface Configuration	133
Security MAC Address	133
Protected Ports	134
Configure Access Control Lists	135
ACL Wizard	135
MAC ACL	138
MAC Rules	138
MAC Binding Configuration	139
MAC Binding Table	140
IP ACL	141
IP Rules	141
IP Extended Rules	142
IPv6 ACL	144
IPv6 Rules	145
IP Binding Configuration	146
IP Binding Table	147
7. Monitoring the System	148
Ports	149
Switch Statistics	149
Port Statistics	150
Port Detailed Statistics	151
EAP Statistics	154
Cable Test	155
Logs	157
Buffered Logs	157
Server Log	158
Trap Logs	159
Mirroring	160
System Resources Utilization	161
8. Maintenance	162
Reset	163
Device Reboot	163
Factory Default	163
Upload a File from the Switch	164
TFTP File Upload	164
HTTP File Upload	165
Download a File to the Switch	166
TFTP File Download	166
HTTP File Download	167
File Management	169
Dual Image Configuration	169
Dual Image Status	169
Troubleshooting	171
Ping	171
Ping IPv6	172
Traceroute	172
Remote Diagnostics	173
9. Help	174
Online Help	175
Support	175
User Guide	175
Registration	176
A. Hardware Specifications and Default Values	178
Switch Features and Defaults	179
B. Configuration Examples	182
Virtual Local Area Networks (VLANs)	183
Sample VLAN Configuration	184
Access Control Lists (ACLs)	185
Sample MAC ACL Configuration	185
Sample Standard IP ACL Configuration	186
Differentiated Services (DiffServ)	188
Class	188
DiffServ Traffic Classes	189
Create Policies	189
Sample DiffServ Configuration	190
802.1x	193
Sample 802.1x Configuration	194
MSTP	196
Sample MSTP Configuration	197
Configure VLAN Routing with Static Route	200
VLAN Routing Overview	200
Sample VLAN Routing Configuration	200
C. Notification of Compliance	201

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GS516TP Gigabit Smart Switches

Link Aggregation Groups

Link aggregation groups (LAGs), which are also known as port channels, allow you to

combine multiple full-duplex Ethernet links into a single logical link. Network devices treat the

aggregation as if it were a single link, which increases fault tolerance and provides load

sharing. You assign the LAG VLAN membership after you create a LAG. The LAG by default

becomes a member of the management VLAN.

A LAG interface can be either static or dynamic, but not both. All members of a LAG must

participate in the same protocols. A static port channel interface does not require a partner

system to be able to aggregate its member ports.

Static LAGs are supported. When a port is added to a LAG as a static member, it does not

transmit or receive LAGPDUs. This switch supports eight LAGs.

From the LAGs menu, you can access features described in the following sections:

•

LAG Configuration

•

LAG Membership

•

LACP Configuration

•

LACP Port Configuration

LAG Configuration

Use the LAG Configuration screen to group one or more full-duplex Ethernet links to

aggregate together to form a link aggregation group, which is also known as a port channel.

The switch treats the LAG as if it were a single link.



To configure LAG settings:

Select

Switching > LAG > Basic > LAG Configuration

Select the check box next to the LAG to configure.

You can select multiple LAGs to apply the same settings to the selected interfaces. Select

the check box in the heading row to apply the same settings to all interfaces.

Configure or view the following settings:

•

Description

. Specify the description string to be attached to a LAG. It can be up to 64

characters in length.

•

LAG ID

. Displays the number assigned to the LAG. This field is read-only.

•

Admin Mode

. Select

Enable

Disable

from the list. When the LAG (port channel) is

disabled, no traffic flows and LAGPDUs are dropped, but the links that form the LAG

(port channel) are not released. The factory default is Enable.

•

STP Mode.

Select

Enable

Disable

from the list to specify the Spanning Tree

Protocol administrative mode associated with the LAG.

•

LAG Type

. Specifies whether the LAG is configured as a static or LACP port. When

the LAG is static, it does not transmit or process received LAGPDUs. For example the