Hi, In current implementation I believe that it is not possible to send MED attribute to IBGP neighbors for routes learned from EBGP neighbors. For example: We have got 3 routers: R1, R2, R3 R1 is in AS 100 R2 and R3 are in AS 200 they are connected through links L1, L2, L3 like this: L1: R1 <->R2 L2: R2 <->R3 L3: R3 <->R1
Now want I want to achieve is set MED attribute for routes in AS100 on R1 for link L1 to 100 and for link L2 to 200. This can be accomplished without problems. The problem is that routers R2 and R3 doesn't send MED attribute in their updates about the routes learned from R1. According to RFC 1771 MED is optional non-transitive and "If received over external links, the MULTI_EXIT_DISC attribute may be propagated over internal links to other BGP speakers within the same AS". So why not enable to sending this attribute to other IBGP neighbors? There is also one other limitation about NEXT_HOP attribute. In current implementation every router changes NEXT_HOP attribute to itself (or the IP set in configuration). Sometimes this behaviour is not required and I would like to see the option to disable this behavior. Best regards. -- Stefan Gula, CCNP _______________________________________________ Xorp-hackers mailing list [email protected] http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/xorp-hackers
