Administrator Guide

RSTP Conguration..................................................................................................................................................... 1057
Preventing Forwarding Loops in a VLT Domain..................................................................................................1058
Sample RSTP Conguration................................................................................................................................. 1058
Conguring VLT............................................................................................................................................................1059
Conguring a VLT Interconnect........................................................................................................................... 1059
Enabling VLT and Creating a VLT Domain...........................................................................................................1060
Conguring a VLT Backup Link............................................................................................................................. 1061
Conguring a VLT Port Delay Period....................................................................................................................1061
Reconguring the Default VLT Settings (Optional) ..........................................................................................1062
Connecting a VLT Domain to an Attached Access Device (Switch or Server)..............................................1062
Conguring a VLT VLAN Peer-Down (Optional)................................................................................................1063
Conguring Enhanced VLT (eVLT) (Optional)................................................................................................... 1064
VLT Sample Conguration.................................................................................................................................... 1066
eVLT Conguration Example...................................................................................................................................... 1069
eVLT Conguration Step Examples..................................................................................................................... 1069
PIM-Sparse Mode Conguration Example................................................................................................................ 1071
Verifying a VLT Conguration..................................................................................................................................... 1072
Additional VLT Sample Congurations.......................................................................................................................1075
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)..........................................1075
Troubleshooting VLT.....................................................................................................................................................1077
Reconguring Stacked Switches as VLT...................................................................................................................1078
Specifying VLT Nodes in a PVLAN.............................................................................................................................1078
Association of VLTi as a Member of a PVLAN................................................................................................... 1079
MAC Synchronization for VLT Nodes in a PVLAN.............................................................................................1079
PVLAN Operations When One VLT Peer is Down............................................................................................. 1080
PVLAN Operations When a VLT Peer is Restarted........................................................................................... 1080
Interoperation of VLT Nodes in a PVLAN with ARP Requests.........................................................................1080
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN........................... 1081
Conguring a VLT VLAN or LAG in a PVLAN...........................................................................................................1082
Creating a VLT LAG or a VLT VLAN.................................................................................................................... 1082
Associating the VLT LAG or VLT VLAN in a PVLAN......................................................................................... 1083
Proxy ARP Capability on VLT Peer Nodes................................................................................................................ 1084
Working of Proxy ARP for VLT Peer Nodes........................................................................................................1084
VLT Nodes as Rendezvous Points for Multicast Resiliency....................................................................................1085
Conguring VLAN-Stack over VLT............................................................................................................................1086
64 Virtual Router Redundancy Protocol (VRRP)......................................................................................... 1089
VRRP Overview........................................................................................................................................................... 1089
VRRP Benets..............................................................................................................................................................1090
VRRP Implementation................................................................................................................................................. 1090
VRRP Conguration..................................................................................................................................................... 1091
Conguration Task List...........................................................................................................................................1091
Sample Congurations.................................................................................................................................................. 1101
VRRP for an IPv4 Conguration............................................................................................................................1101
VRRP in a VRF Conguration................................................................................................................................1105
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