Problem 2 of 2021 exam

Problem 2 of 2021 exam

by Jiaqi Wang -
Number of replies: 2

Hello, TAs

I have a question which is about Problem 2.6 in 2021 exam. 


The problem description doesn't mention that router V3 does not run BGP (but continues to run OSPF). Why the answer could treat V3 same as V1, that is using OSPF to compute other than BGP?

Thank you very much for reading.

In reply to Jiaqi Wang

Re: Problem 2 of 2021 exam

by Seyed Mohammadhossein Tabatabaee -
Hello,

As described at the beginning of the problem, all routers run BGP and OSPF. In fact, the solution mentions the routes learned by I-BGP; specifically, V3 learns routes to the corresponding destination through I-BGP and OSPF, however, because of the administrative distance, routes learned by OSPF are preferred.

I hope this helps.

Best