Routing
Routing

Blocking STP BPDU's over L2VPN and VPLS

09.24.09   |  
‎09-24-2009 03:03 PM

Hello,

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. 

 

Thanks,

Nick 

2 REPLIES
Routing
Solution
Accepted by topic author blinky
‎08-26-2015 01:27 AM

Re: Blocking STP BPDU's over L2VPN and VPLS

09.25.09   |  
‎09-25-2009 12:31 AM

Hi Nick,

 

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. 

 

Kind Regards

Michael Pergament

 

 

 

Attachments

Routing

Re: Blocking STP BPDU's over L2VPN and VPLS

09.26.09   |  
‎09-26-2009 01:25 PM

Thanks Mike! That's exactly what I was looking for!

 

Nick