Users Guide

RSTP Conguration.....................................................................................................................................................1053
Preventing Forwarding Loops in a VLT Domain..................................................................................................1054
Sample RSTP Conguration................................................................................................................................. 1054
Conguring VLT........................................................................................................................................................... 1055
Conguring a VLT Interconnect........................................................................................................................... 1055
Enabling VLT and Creating a VLT Domain...........................................................................................................1056
Conguring a VLT Backup Link.............................................................................................................................1057
Conguring a VLT Port Delay Period................................................................................................................... 1057
Reconguring the Default VLT Settings (Optional) ..........................................................................................1058
Connecting a VLT Domain to an Attached Access Device (Switch or Server)..............................................1058
Conguring a VLT VLAN Peer-Down (Optional)................................................................................................1059
Conguring Enhanced VLT (eVLT) (Optional)................................................................................................... 1060
VLT Sample Conguration.................................................................................................................................... 1062
eVLT Conguration Example...................................................................................................................................... 1065
eVLT Conguration Step Examples..................................................................................................................... 1065
PIM-Sparse Mode Conguration Example................................................................................................................1067
Verifying a VLT Conguration.....................................................................................................................................1068
Additional VLT Sample Congurations........................................................................................................................1071
Conguring Virtual Link Trunking (VLT Peer 1)Conguring Virtual Link Trunking (VLT Peer 2)Verifying a
Port-Channel Connection to a VLT Domain (From an Attached Access Switch).......................................... 1071
Troubleshooting VLT.....................................................................................................................................................1073
Reconguring Stacked Switches as VLT...................................................................................................................1074
Specifying VLT Nodes in a PVLAN.............................................................................................................................1074
Association of VLTi as a Member of a PVLAN................................................................................................... 1075
MAC Synchronization for VLT Nodes in a PVLAN.............................................................................................1075
PVLAN Operations When One VLT Peer is Down............................................................................................. 1076
PVLAN Operations When a VLT Peer is Restarted............................................................................................1076
Interoperation of VLT Nodes in a PVLAN with ARP Requests.........................................................................1076
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN........................... 1077
Conguring a VLT VLAN or LAG in a PVLAN...........................................................................................................1078
Creating a VLT LAG or a VLT VLAN.....................................................................................................................1078
Associating the VLT LAG or VLT VLAN in a PVLAN..........................................................................................1079
Proxy ARP Capability on VLT Peer Nodes................................................................................................................1080
Working of Proxy ARP for VLT Peer Nodes....................................................................................................... 1080
VLT Nodes as Rendezvous Points for Multicast Resiliency.....................................................................................1081
Conguring VLAN-Stack over VLT............................................................................................................................1082
64 Virtual Router Redundancy Protocol (VRRP)......................................................................................... 1085
VRRP Overview........................................................................................................................................................... 1085
VRRP Benets..............................................................................................................................................................1086
VRRP Implementation................................................................................................................................................. 1086
VRRP Conguration.....................................................................................................................................................1087
Conguration Task List.......................................................................................................................................... 1087
Sample Congurations.................................................................................................................................................1097
VRRP for an IPv4 Conguration...........................................................................................................................1097
VRRP in a VRF Conguration................................................................................................................................ 1101
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