White Papers

Table Of Contents
VLT Bandwidth Monitoring.....................................................................................................................................924
VLT and Stacking...................................................................................................................................................... 924
VLT and IGMP Snooping......................................................................................................................................... 924
VLT Port Delayed Restoration............................................................................................................................... 924
PIM-Sparse Mode Support on VLT...................................................................................................................... 924
RSTP Configuration....................................................................................................................................................... 926
Preventing Forwarding Loops in a VLT Domain................................................................................................ 926
Sample RSTP Configuration...................................................................................................................................926
Configuring VLT.........................................................................................................................................................927
Configuring a VLT Interconnect............................................................................................................................ 927
Enabling VLT and Creating a VLT Domain.......................................................................................................... 928
Configuring a VLT Backup Link............................................................................................................................. 928
Configuring a VLT Port Delay Period................................................................................................................... 929
Reconfiguring the Default VLT Settings (Optional) ........................................................................................929
Connecting a VLT Domain to an Attached Access Device (Switch or Server).........................................930
Configuring a VLT VLAN Peer-Down (Optional).............................................................................................. 930
Configuring Enhanced VLT (Optional)................................................................................................................. 931
PVST+ Configuration..................................................................................................................................................... 932
VLT Sample Configuration............................................................................................................................................933
eVLT Configuration Example........................................................................................................................................936
PIM-Sparse Mode Configuration Example................................................................................................................939
Verifying a VLT Configuration..................................................................................................................................... 939
Additional VLT Sample Configurations...................................................................................................................... 943
Troubleshooting VLT......................................................................................................................................................944
Reconfiguring Stacked Switches as VLT.................................................................................................................. 946
Specifying VLT Nodes in a PVLAN.............................................................................................................................946
Configuring a VLT VLAN or LAG in a PVLAN.......................................................................................................... 949
Creating a VLT LAG or a VLT VLAN.................................................................................................................... 949
Associating the VLT LAG or VLT VLAN in a PVLAN........................................................................................950
Proxy ARP Capability on VLT Peer Nodes................................................................................................................ 951
VLT Nodes as Rendezvous Points for Multicast Resiliency................................................................................. 952
Configuring VLAN-Stack over VLT............................................................................................................................ 952
IPv6 Peer Routing in VLT Domains Overview......................................................................................................... 955
Chapter 66: Virtual Routing and Forwarding (VRF)................................................................... 960
VRF Overview..................................................................................................................................................................960
VRF Configuration Notes...............................................................................................................................................961
DHCP........................................................................................................................................................................... 963
VRF Configuration.......................................................................................................................................................... 963
Loading VRF CAM.....................................................................................................................................................963
Creating a Non-Default VRF Instance................................................................................................................. 963
Assigning an Interface to a VRF............................................................................................................................963
Assigning a Front-end Port to a Management VRF......................................................................................... 963
View VRF Instance Information.............................................................................................................................964
Assigning an OSPF Process to a VRF Instance.................................................................................................964
Configuring VRRP on a VRF Instance..................................................................................................................964
Configuring Management VRF.............................................................................................................................. 965
Configuring a Static Route..................................................................................................................................... 966
Sample VRF Configuration........................................................................................................................................... 966
Route Leaking VRFs........................................................................................................................................................971
Contents
29