Concept Guide
eVLT Conguration Step Examples....................................................................................................................... 1112
PIM-Sparse Mode Conguration Example................................................................................................................. 1114
Verifying a VLT Conguration.......................................................................................................................................1115
Additional VLT Sample Congurations........................................................................................................................ 1118
Conguring Virtual Link Trunking (VLT Peer 1)Conguring Virtual Link Trunking (VLT Peer 2)Verifying a
Port-Channel Connection to a VLT Domain (From an Attached Access Switch)........................................... 1118
Troubleshooting VLT..................................................................................................................................................... 1120
Reconguring Stacked Switches as VLT.................................................................................................................... 1121
Specifying VLT Nodes in a PVLAN..............................................................................................................................1121
Association of VLTi as a Member of a PVLAN....................................................................................................1122
MAC Synchronization for VLT Nodes in a PVLAN..............................................................................................1122
PVLAN Operations When One VLT Peer is Down.............................................................................................. 1123
PVLAN Operations When a VLT Peer is Restarted............................................................................................ 1123
Interoperation of VLT Nodes in a PVLAN with ARP Requests..........................................................................1123
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN............................1124
Conguring a VLT VLAN or LAG in a PVLAN........................................................................................................... 1125
Creating a VLT LAG or a VLT VLAN..................................................................................................................... 1125
Associating the VLT LAG or VLT VLAN in a PVLAN.......................................................................................... 1126
Proxy ARP Capability on VLT Peer Nodes................................................................................................................. 1127
Working of Proxy ARP for VLT Peer Nodes.........................................................................................................1127
VLT Nodes as Rendezvous Points for Multicast Resiliency.....................................................................................1128
Conguring VLAN-Stack over VLT.............................................................................................................................1129
65 Virtual Router Redundancy Protocol (VRRP).......................................................................................... 1132
VRRP Overview............................................................................................................................................................ 1132
VRRP Benets...............................................................................................................................................................1133
VRRP Implementation.................................................................................................................................................. 1133
VRRP Conguration......................................................................................................................................................1134
Conguration Task List...........................................................................................................................................1134
Sample Congurations................................................................................................................................................. 1144
VRRP for an IPv4 Conguration........................................................................................................................... 1144
VRRP in a VRF Conguration................................................................................................................................1146
Proxy Gateway with VRRP..........................................................................................................................................1150
66 Standards Compliance............................................................................................................................ 1156
IEEE Compliance...........................................................................................................................................................1156
RFC and I-D Compliance..............................................................................................................................................1157
General Internet Protocols..................................................................................................................................... 1157
Border Gateway Protocol (BGP)...........................................................................................................................1157
General IPv4 Protocols...........................................................................................................................................1158
General IPv6 Protocols...........................................................................................................................................1159
Intermediate System to Intermediate System (IS-IS)........................................................................................ 1159
Network Management........................................................................................................................................... 1160
Multicast.................................................................................................................................................................. 1163
Open Shortest Path First (OSPF)........................................................................................................................ 1164
Routing Information Protocol (RIP)...................................................................................................................... 1164
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