In this article we will focus on the VPLS (Virtual Private LAN Service) configuration on Cisco device . We will use the below VPLS (Virtual Private LAN Service) topology for our configuration example.
Cisco VPLS Configuration Example Topology
In this VPLS topology, the devices that we will use are, Cisco Catalyst 6500 Series Switches. Here, before the configuraton, lets check two term used in commands.
VFI : Virtual Forwarding Instance VSI : Virtual Switch Instance
Here, VPLS configuration steps will be like below:
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 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.