Users Guide

Table Of Contents
Example - BGP in a VLT topology
The following spine-leaf VLT topology runs BGP for Layer 3 communication.
Spine 1 configuration
1. Configure a VLAN interface on which the BGP session has to be formed with VLT peers.
Spine1(config)# interface vlan101
Spine1(conf-if-vl-101)# ip address 10.0.1.1/29
Spine1(conf-if-vl-101)# mtu 9216
Spine1(conf-if-vl-101)# exit
2. Configure port channel interfaces between Spine and VLT peers. Add it as part of the created VLAN.
Spine1(config)# interface port-channel1
Spine1(conf-if-po-1)# mtu 9216
Spine1(conf-if-po-1)# switchport mode trunk
Spine1(conf-if-po-1)# switchport trunk allowed vlan 101
Spine1(conf-if-po-1)# exit
Spine1(config)# interface ethernet1/1/1
Spine1(conf-if-eth1/1/1)# channel-group 1 mode active
Spine1(conf-if-eth1/1/1)# exit
Spine1(config)# interface ethernet1/1/2
Spine1(conf-if-eth1/1/2)# channel-group 1 mode active
Spine1(conf-if-eth1/1/2)# exit
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Layer 3