Administrator Guide

UFD and NIC Teaming..................................................................................................................................................... 811
Important Points to Remember........................................................................................................................................811
Conguring Uplink Failure Detection............................................................................................................................... 812
Clearing a UFD-Disabled Interface.................................................................................................................................. 813
Displaying Uplink Failure Detection..................................................................................................................................814
Sample Conguration: Uplink Failure Detection...............................................................................................................816
56 Upgrade Procedures.................................................................................................. 818
Get Help with Upgrades..................................................................................................................................................818
57 Virtual LANs (VLANs)................................................................................................ 819
Default VLAN..................................................................................................................................................................819
Port-Based VLANs...................................................................................................................................................820
VLANs and Port Tagging..........................................................................................................................................820
Conguration Task List..............................................................................................................................................821
Conguring Native VLANs....................................................................................................................................... 824
Enabling Null VLAN as the Default VLAN.......................................................................................................................825
58 Virtual Link Trunking (VLT)........................................................................................826
Overview........................................................................................................................................................................826
Multi-domain VLT..................................................................................................................................................... 827
VLT Terminology.............................................................................................................................................................828
Congure Virtual Link Trunking.......................................................................................................................................828
Important Points to Remember................................................................................................................................ 828
Conguration Notes.................................................................................................................................................829
RSTP and VLT..........................................................................................................................................................832
VLT Bandwidth Monitoring.......................................................................................................................................832
VLT and IGMP Snooping..........................................................................................................................................833
VLT Port Delayed Restoration.................................................................................................................................. 833
PIM-Sparse Mode Support on VLT.......................................................................................................................... 833
VLT Multicast...........................................................................................................................................................835
VLT Unicast Routing................................................................................................................................................ 836
Non-VLT ARP Sync..................................................................................................................................................836
RSTP Conguration........................................................................................................................................................837
Preventing Forwarding Loops in a VLT Domain.........................................................................................................837
Sample RSTP Conguration..................................................................................................................................... 837
Conguring VLT....................................................................................................................................................... 838
Conguring a VLT Interconnect................................................................................................................................838
Conguring a VLT Backup Link.................................................................................................................................839
Conguring a VLT Port Delay Period........................................................................................................................ 839
Reconguring the Default VLT Settings (Optional) ................................................................................................. 839
Connecting a VLT Domain to an Attached Access Device (Switch or Server)..........................................................840
Conguring a VLT VLAN Peer-Down (Optional)....................................................................................................... 841
Congure Multi-domain VLT (mVLT) (Optional)....................................................................................................... 841
Verifying a VLT Conguration...................................................................................................................................843
Connecting a VLT Domain........................................................................................................................................ 847
27