Administrator Guide

Table Of Contents
VLT Terminology.............................................................................................................................................................. 712
Configure Virtual Link Trunking.................................................................................................................................... 712
Important Points to Remember.............................................................................................................................. 712
Configuration Notes.................................................................................................................................................. 713
Primary and Secondary VLT Peers........................................................................................................................ 716
RSTP and VLT............................................................................................................................................................ 716
VLT Bandwidth Monitoring...................................................................................................................................... 717
VLT and IGMP Snooping.......................................................................................................................................... 717
VLT IPv6.......................................................................................................................................................................717
VLT Port Delayed Restoration................................................................................................................................ 717
PIM-Sparse Mode Support on VLT....................................................................................................................... 718
VLT Routing ............................................................................................................................................................... 719
Non-VLT ARP Sync................................................................................................................................................... 721
RSTP Configuration.........................................................................................................................................................721
Preventing Forwarding Loops in a VLT Domain................................................................................................. 721
Sample RSTP Configuration....................................................................................................................................721
Configuring VLT.........................................................................................................................................................722
PVST+ Configuration..................................................................................................................................................... 730
eVLT Configuration Example.........................................................................................................................................731
PIM-Sparse Mode Configuration Example................................................................................................................733
Verifying a VLT Configuration......................................................................................................................................734
Additional VLT Sample Configurations.......................................................................................................................737
Troubleshooting VLT...................................................................................................................................................... 739
Reconfiguring Stacked Switches as VLT.................................................................................................................. 740
Specifying VLT Nodes in a PVLAN............................................................................................................................. 740
Configuring a VLT VLAN or LAG in a PVLAN...........................................................................................................744
Creating a VLT LAG or a VLT VLAN.....................................................................................................................744
Associating the VLT LAG or VLT VLAN in a PVLAN........................................................................................ 744
Proxy ARP Capability on VLT Peer Nodes................................................................................................................745
VLT Nodes as Rendezvous Points for Multicast Resiliency................................................................................. 746
Configuring VLAN-Stack over VLT.............................................................................................................................747
Chapter 54: VLT Proxy Gateway.................................................................................................751
Proxy Gateway in VLT Domains................................................................................................................................... 751
Configuring an LLDP VLT Proxy Gateway................................................................................................................756
Chapter 55: Virtual Router Redundancy Protocol (VRRP)..........................................................757
VRRP Overview............................................................................................................................................................... 757
VRRP Benefits................................................................................................................................................................. 758
VRRP Implementation....................................................................................................................................................758
VRRP Configuration....................................................................................................................................................... 759
Configuration Task List............................................................................................................................................759
Setting VRRP Initialization Delay...........................................................................................................................767
Sample Configurations...................................................................................................................................................767
VRRP in a VRF Configuration..................................................................................................................................771
VRRP for IPv6 Configuration................................................................................................................................. 776
Chapter 56: Z-Series Debugging and Diagnostics...................................................................... 780
Offline Diagnostics..........................................................................................................................................................780
Contents
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