Concept Guide

Table Of Contents
Non-VLT ARP Sync.................................................................................................................................................. 898
RSTP Configuration....................................................................................................................................................... 898
Preventing Forwarding Loops in a VLT Domain................................................................................................ 899
Sample RSTP configuration....................................................................................................................................899
Configuring VLT........................................................................................................................................................ 900
PVST+ Configuration.....................................................................................................................................................908
Peer Routing Configuration Example.........................................................................................................................909
Dell-1 Switch Configuration.....................................................................................................................................910
Dell-2 Switch Configuration.................................................................................................................................... 914
R1 Configuration.........................................................................................................................................................917
Access Switch A1 Configurations and Verification............................................................................................ 918
eVLT Configuration Example........................................................................................................................................ 918
PIM-Sparse Mode Configuration Example................................................................................................................ 921
Verifying a VLT Configuration...................................................................................................................................... 921
Additional VLT Sample Configurations...................................................................................................................... 924
Troubleshooting VLT......................................................................................................................................................926
Reconfiguring Stacked Switches as VLT.................................................................................................................. 927
Specifying VLT Nodes in a PVLAN............................................................................................................................. 927
Configuring a VLT VLAN or LAG in a PVLAN........................................................................................................... 931
Creating a VLT LAG or a VLT VLAN..................................................................................................................... 931
Associating the VLT LAG or VLT VLAN in a PVLAN........................................................................................932
Proxy ARP Capability on VLT Peer Nodes................................................................................................................932
VLT Nodes as Rendezvous Points for Multicast Resiliency................................................................................. 933
Configuring VLAN-Stack over VLT............................................................................................................................ 934
Configure BFD in VLT Domain..................................................................................................................................... 937
Sample BFD configuration in VLT domain...........................................................................................................937
IPv6 Peer Routing in VLT Domains Overview..........................................................................................................940
Chapter 59: VLT Proxy Gateway................................................................................................ 945
Proxy Gateway in VLT Domains.................................................................................................................................. 945
LLDP VLT Proxy Gateway in a Square VLT Topology..................................................................................... 948
Configuring a Static VLT Proxy Gateway................................................................................................................. 949
Configuring an LLDP VLT Proxy Gateway................................................................................................................949
VLT Proxy Gateway Sample Topology...................................................................................................................... 950
VLT Domain Configuration..................................................................................................................................... 950
Dell-1 VLT Configuration......................................................................................................................................... 950
Dell-2 VLT Configuration......................................................................................................................................... 951
Dell-3 VLT Configuration.........................................................................................................................................952
Dell-4 VLT Configuration.........................................................................................................................................953
Chapter 60: Virtual Routing and Forwarding (VRF)....................................................................954
VRF Overview..................................................................................................................................................................954
VRF Configuration Notes..............................................................................................................................................955
DHCP........................................................................................................................................................................... 957
VRF Configuration.......................................................................................................................................................... 957
Loading VRF CAM.....................................................................................................................................................957
Creating a Non-Default VRF Instance................................................................................................................. 957
Assigning an Interface to a VRF............................................................................................................................ 957
Assigning a Front-end Port to a Management VRF......................................................................................... 957
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