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Using 1000BASE-T Gigabit Ethernet over Category 5 Cable, Cabling

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GS108T Smart Switch Software Administration Manual Figure C-3 Note: Flat "silver satin" telephone cable might have the same RJ-45 plug. However, using telephone cable results in excessive collisions, causing the attached port to be partitioned or disconnected from the network. Using 1000BASE-T Gigabit Ethernet over Category 5 Cable When you use the new 1000BASE-T standard, you must consider the limitations of cable installations and the steps necessary to ensure optimum performance. The most important components in your cabling system are patch panel connections, twists of the pairs at connector transition points, the jacket around the twisted-pair cable, bundling of multiple pairs on horizontal runs, and punch down blocks. All of these factors affect the performance of 1000BASE-T technology if not correctly implemented. The following sections are designed to act as a guide to correct cabling for 1000BASE-T. Cabling The 1000BASE-T product is designed to operate over Category 5 cabling. To further enhance operation, the cabling standards have been amended. The latest standard is Category 5e, which defines a higher level of link performance than is available with Category 5 cable. C-4 Network Cabling v1.0, December 2007

Section	Page
GS108T Smart Switch Software Administration Manual	1
Contents	5
About This Manual	10
Who Should Use This Book	10
How to Use This Book	10
Conventions, Formats, and Scope	11
How to Use This Manual	12
How to Print This Manual	12
Revision History	13
Chapter 1 Getting Started with Switch Management	15
System Requirements	15
Switch Management Interface	16
Network with a DHCP Server	17
Network without a DHCP Server	18
Manually Assigning Network Settings	19
NIC Setting on the Host That Accesses the GS108T Gigabit Smart Switch	19
Web Access	20
Additional Utilities	21
Password Change	22
Firmware Upgrade	22
Exit	23
Chapter 2 Introduction to the Web Browser Interface	25
Logging In to the NETGEAR Home Page	25
Navigation Tabs	26
Chapter 3 Managing System Settings	29
Using the System Tab	29
Management	29
System Information	30
IP Configuration	31
Time	32
SNMP	34
SNMP V1/V2	34
LLDP	35
Basic-LLDP Configuration	35
Advanced-LLDP Configuration	37
Advanced-LLDP Port Settings	37
Advanced-Local Information	39
Advanced-Neighbors Information	43
Chapter 4 Configuring Switching	45
Using the Switching Tab	45
Ports	46
Port Configuration	46
LAG	48
Basic-LAG Configuration	48
Basic-LAG Membership	49
Advanced-LAG Configuration	50
Advanced-LAG Membership	50
Advanced-LACP Configuration	51
Advanced-LACP Port Configuration	51
VLAN	53
Basic-VLAN Configuration	53
IEEE 802.1Q VLAN Configuration	53
Port-Based VLAN Configuration	55
Advanced-VLAN Configuration	56
Advanced-VLAN Membership	56
IEEE 802.1Q VLAN Membership	56
Port-Based VLAN Membership	58
Advanced-Port PVID Configuration	59
STP	61
Basic-RSTP Configuration	61
Advanced-RSTP Configuration	61
Advanced-Port Configuration	62
Multicast	64
IGMP Snooping	64
Static Multicasting	66
Multicast Group Membership	67
Switch Configuration	68
Jumbo Frame Configuration	68
Address Table	69
Static Address	69
Dynamic Address	70
Chapter 5 Configuring QoS and Security	73
Using the QoS Tab	73
CoS	73
Basic-QoS Global Configuration	73
Basic-Rate Limit	74
Advanced-801.1p to Queue Mapping	76
Advanced-DSCP Priority Mapping	76
Using the Security Tab	78
Management Security	78
User Configuration-Change Password	78
RADIUS	79
Authentication Type	81
Port Authentication	82
Basic-802.1x Configuration	82
Advanced-802.1x Configuration	85
Advanced-Port Authentication	85
Traffic Control	88
Storm Control	88
Port Security	90
Access	91
IP Access List	91
Trusted MAC	93
Chapter 6 Monitoring, Maintenance, and Help	95
Using the Monitoring Tab	95
Ports	96
Port Statistics	96
EAP Statistics	99
802.1x Accounting Statistics	101
Mirroring	102
Port Mirroring	102
Log	103
Configuration	103
Memory Logs	105
Flash Logs	106
Server Logs	107
LLDP	109
Statistics	109
Using the Maintenance Tab	110
Reset	111
Device Reboot	111
Factory Default	112
Upload	113
File Upload	113
Download	114
File Download	114
Using the Help Tab	116
Online Help	117
Support	117
User Guide	117
Appendix A Specifications and Default Values	119
GS108T Gigabit Smart Switch Specifications	119
GS108T Gigabit Smart Switch Features and Defaults	120
Appendix B Virtual Local Area Networks (VLANs)	123
IEEE 802.1Q VLANs	124
IEEE 802.1Q VLAN Example Configuration	124
Port-Based VLANs	125
Port-Based VLAN Example Configuration	126
Appendix C Network Cabling	129
Fast Ethernet Cable Guidelines	129
Category 5 Cable	129
Category 5 Cable Specifications	130
Twisted Pair Cables	130
Patch Panels and Cables	131
Using 1000BASE-T Gigabit Ethernet over Category 5 Cable	132
Cabling	132
Length	133
Return Loss	133
Near End Cross Talk	133
Patch Cables	134
RJ-45 Plug and RJ-45 Connectors	134
Conclusion	135

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GS108T Smart Switch Software Administration Manual

C-4

Network Cabling

v1.0, December 2007

Using 1000BASE-T Gigabit Ethernet over Category 5 Cable

When you use the new 1000BASE-T standard, you must consider the limitations of cable

installations and the steps necessary to ensure optimum performance. The most important

components in your cabling system are patch panel connections, twists of the pairs at connector

transition points, the jacket around the twisted-pair cable, bundling of multiple pairs on horizontal

runs, and punch down blocks. All of these factors affect the performance of 1000BASE-T

technology if not correctly implemented. The following sections are designed to act as a guide to

correct cabling for 1000BASE-T.

Cabling

The 1000BASE-T product is designed to operate over Category 5 cabling. To further enhance

operation, the cabling standards have been amended. The latest standard is Category 5e, which

defines a higher level of link performance than is available with Category 5 cable.

Figure C-3

Note:

Flat “silver satin” telephone cable might have the same RJ-45 plug. However, using

telephone cable results in excessive collisions, causing the attached port to be

partitioned or disconnected from the network.