Cisco Cisco IOS Software Release 12.2(33)SRE

© 2007 Cisco Systems, Inc. All rights reserved.

VPLS Autodiscovery enables each Virtual Private LAN Service (VPLS) provider edge (PE) router to 
discover which other PE routers are part of the same VPLS domain. VPLS Autodiscovery also 
automatically detects when PE routers are added to or removed from the VPLS domain. You no longer 
need to manually configure the VPLS and maintain the configuration when a PE router is added or 
deleted. VPLS Autodiscovery uses the Border Gateway Protocol (BGP) to discover the VPLS members 
and to set up and tear down pseudowires in the VPLS. 

Your Cisco IOS software release may not support all of the features documented in this module. To reach 
links to specific feature documentation in this module and to see a list of the releases in which each feature is 
supported, use the 

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image 
support. Access Cisco Feature Navigator at 

. You must have an account on 

Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at 
the login dialog box and follow the instructions that appear.