[c-nsp] MED on vpnv4 routes

Zaheer Aziz zaziz at cisco.com
Wed Aug 11 17:40:21 EDT 2004


At 04:20 PM 8/11/2004 -0500, Timothy.Hall at alltel.com wrote:
>We are having a problem with some lab testing. We set up two AS's doing 
>interprovider VPN, each AS has two ASBR's. The ASBR's are set up with ebgp 
>advertising only the vpnv4 routes. We set the MED for the routes so that 
>we would know which inter-AS link traffic would take. One border router is 
>an M-series, the other is a GSR. Problem is the GSR is not sending the vpn 
>routes with the MED set. The debug ip bgp update output shows that the MED 
>is set and the router thinks it is advertising properly, however the other 
>side does not indicate that it is receiving the MED attribute. Also, it 
>doesn'ty matter whether the receiving router is an M-series or a Cisco 
>router. Problem occurs in both cases.

Please provide the debugs from sender and receiver for any one of the 
prefixes in question.

Zaheer


>GSR is running 12.0(27)S2.
>
>Anyone have any ideas?
>
>Thanks,
>Tim
>
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