09-24-2009 03:03 PM
I am looking for a way to block spanning-tree BPDU's from being transmitted across a VPLS or L2VPN instance. I have encountered an issue where Cisco switches configured with different native VLANs on their core facing interfaces will cause an err-disable state, due to the mismatched VLANs in the BPDU's. Is there an easy way to block BPDU's on a per interface or per routing-instance basis? I've tried configuring protocol *stp under the VPLS routing instance but it appears this combination is not valid. I am using MX series routers with 9.3R3.8 code.
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09-25-2009 12:31 AM
you could write a firewall filter(see attachment) and apply it under routing-instance (see attachment).
If this worked for you please flag my post as an "Accepted Solution" so others can benefit. A kudo would be cool if you think I earned it.