Cisco VPLS Configuration


How to Configure VPLS on Cisco Routers?


In this VPLS Example, we will focus on the VPLS (Virtual Private LAN Service) Configuration on Cisco Catalyst 6500 Series Switches. We will use the below Cisco VPLS (Virtual Private LAN Service) topology for our VPLS Configuration Example.


Cisco VPLS Configuration Example
Cisco VPLS Configuration Example Topology


In this Cisco VPLS Example topology, we will use Cisco Catalyst 6500 Series Switches. Here, before the configuration, lets check two term used in commands.


VFI : Virtual Forwarding Instance
VSI : Virtual Switch Instance


Here, For our VPLS Configuration, we will follow the below configuration steps:

1) Configuration of the VSIs(Virtual Switch Instance) and VCs (Virtual Circuits).
2) Configuration of the CE (Customer Equipment) Device Interface.
3) Association of the VC with the VFI (Virtual Forwarding Instance).


We will do these configuration steps one by one for each PE device.


There is an important note before VPLS Configuration. As you know split-horizon rule provides broadcast packet loops and isolates the L2 traffic. With the use of “no-split-horizon” command during the VC configuration, we can disble the default L2 split-horizon rule and configure multiple VCs per spoke into the same VFI.


As an example:

Router1(config-vfi)# neighbor encapsulation mpls split-horizonLet’s see the VPLS (Virtual Private LAN Service) Configuration on each device.



Cisco VPLS Configuration Steps

Router 1

Router1(config)# l2 vfi PE1_COMPANY_A manual

Router1(config-vfi)# vpn id 100
Router1(config-vfi)# neighbor encapsulation mpls
Router1(config-vfi)# neighbor encapsulation mpls
Router1(config-vfi)# exitRouter1(config)# interface FastEthernet0/0
Router1(config-if)# switchport
Router1(config-if)# switchport mode dot1qtunnel
Router1(config-if)# switchport access vlan 100
Router1(config-if)# exitRouter1(config)# interface vlan 100
Router1(config-if)# no ip address

Router1(config-if)# xconnect vfi PE1_COMPANY_A

Lesson tags: vpls, l2 vpn, vpn, cisco
Back to: CCIE Enterprise Infrastructure > MPLS

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