Hello to all, I'm having problems in understanding how bgp choose one route and discard other based in its SOO, for example
suppose this example
look at the network diagram in the link:
Figure 1 Network Diagram for SoO Example
(BGP per Neighbor SoO Configuration)
For my example I will tag the ingress router on PE1 from CPE1 with soo 65000:1, and I will tag again the ingress on PE2 from CPE2 with the same soo 65000:1, obvious that I'm using as-overide in this example....
My question is, suposse we are analising PE2, and from the left receive the routes of CPE2 tagged with soo through IGP and from EGP is receiving the routes directly from CPE2 tagged with the same soo... so the question is, because of the same SOO the PE2 have to choose a network path and discard other, how is the selection process, the PE2 look first at soo and after that makes a decision on external internal protocol or how is the algorithm in the decision for discarting, sorry if it seems banal, but I undertand the soo but I don't understand if we have two same soo network how to choose one and discard other?....