Users Guide

Assigning an OSPF Process to a VRF Instance................................................................................................. 1062
Conguring VRRP on a VRF Instance.................................................................................................................1062
Conguring Management VRF.............................................................................................................................1063
Conguring a Static Route....................................................................................................................................1064
Route Leaking VRFs.................................................................................................................................................... 1064
Sample VRF Conguration..........................................................................................................................................1065
Dynamic Route Leaking...............................................................................................................................................1066
Conguring Route Leaking with Filtering............................................................................................................ 1067
Conguring Route Leaking without Filtering Criteria.........................................................................................1068
63 Virtual Link Trunking (VLT)......................................................................................................................1071
Overview........................................................................................................................................................................1071
VLT on Core Switches............................................................................................................................................1074
VLT Terminology........................................................................................................................................................... 1074
Important Points to Remember.................................................................................................................................. 1074
Conguration Notes.....................................................................................................................................................1075
Primary and Secondary VLT Peers.............................................................................................................................1078
RSTP and VLT...............................................................................................................................................................1078
VLT Bandwidth Monitoring......................................................................................................................................... 1078
VLT and High Availability..............................................................................................................................................1079
VLT and IGMP Snooping............................................................................................................................................. 1079
VLT and Stacking..........................................................................................................................................................1079
VLT IPv6........................................................................................................................................................................ 1079
VLT Port Delayed Restoration.....................................................................................................................................1079
PIM-Sparse Mode Support on VLT........................................................................................................................... 1080
VLT Routing ..................................................................................................................................................................1081
Spanned VLANs......................................................................................................................................................1081
VLT Unicast Routing...............................................................................................................................................1081
VLT Multicast Routing........................................................................................................................................... 1082
Non-VLT ARP Sync......................................................................................................................................................1083
RSTP Conguration..................................................................................................................................................... 1083
Preventing Forwarding Loops in a VLT Domain..................................................................................................1084
Sample RSTP Conguration................................................................................................................................. 1084
Conguring VLT............................................................................................................................................................1085
Conguring a VLT Interconnect........................................................................................................................... 1085
Enabling VLT and Creating a VLT Domain...........................................................................................................1086
Conguring a VLT Backup Link.............................................................................................................................1087
Conguring a VLT Port Delay Period....................................................................................................................1087
Reconguring the Default VLT Settings (Optional) ..........................................................................................1088
Connecting a VLT Domain to an Attached Access Device (Switch or Server)..............................................1088
Conguring a VLT VLAN Peer-Down (Optional)................................................................................................1089
Conguring Enhanced VLT (eVLT) (Optional)................................................................................................... 1090
VLT Sample Conguration.................................................................................................................................... 1092
eVLT Conguration Example...................................................................................................................................... 1095
eVLT Conguration Step Examples..................................................................................................................... 1095
PIM-Sparse Mode Conguration Example................................................................................................................1097
Contents
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