Users Guide

63 Upgrade Procedures........................................................................................................1108
Get Help with Upgrades......................................................................................................1108
Getting Help with Switch Information.............................................................................1108
64 Virtual LANs (VLANs)....................................................................................................... 1109
Default VLAN..........................................................................................................................1110
Port-Based VLANs................................................................................................................. 1111
VLANs and Port Tagging...................................................................................................... 1111
Configuration Task List........................................................................................................ 1112
Creating a Port-Based VLAN.........................................................................................1112
Assigning Interfaces to a VLAN.....................................................................................1113
Moving Untagged Interfaces........................................................................................ 1114
Assigning an IP Address to a VLAN..............................................................................1115
Enabling Null VLAN as the Default VLAN................................................................... 1116
Configuring Native VLANs...................................................................................................1116
65 VLT Proxy Gateway.......................................................................................................... 1118
Proxy Gateway in VLT Domains.........................................................................................1118
Guidelines for Enabling the VLT Proxy Gateway......................................................1119
Enabling the VLT Proxy Gateway................................................................................ 1120
LLDP Organizational TLV for Proxy Gateway............................................................1121
Configuring an LLDP VLT Proxy Gateway....................................................................... 1123
Configuring a Static VLT Proxy Gateway.........................................................................1124
66 Virtual Link Trunking (VLT).............................................................................................1125
Overview.................................................................................................................................1125
VLT on Core Switches....................................................................................................1127
Multiple VLT..................................................................................................................... 1128
VLT Terminology.................................................................................................................. 1128
Configure Virtual Link Trunking.........................................................................................1129
Important Points to Remember...................................................................................1129
Configuration Notes...................................................................................................... 1130
RSTP and VLT...................................................................................................................1133
VLT Bandwidth Monitoring...........................................................................................1134
VLT and Stacking.............................................................................................................1134
VLT and IGMP Snooping............................................................................................... 1134
VLT Port Delayed Restoration......................................................................................1134
PIM-Sparse Mode Support on VLT..............................................................................1135
RSTP Configuration..............................................................................................................1136
Preventing Forwarding Loops in a VLT Domain.......................................................1137
Sample RSTP Configuration..........................................................................................1137
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