I think the SG is mistaken in the way it has tagged the communities, or maybe I'm wrong?
Task states the following:
Prefixes tagged with community 100:542 should be advertised to BB1 with AS 100 prepended 3 times
Prefixes tagged with community 100:546 should be advertise to BB3 with AS 100 Prepended 3 times
Use this developed signaling to ensure AS 54 prefers BB1 to reach 150.1.33.33 and prefers BB3 to reach 150.1.133.133.
SG solves by the following:
tags prefix 150.1.33.33 with community 100:542
tags prefix 150.1.133.133 with community 100:546
Advertise to BB1 100:546 and prepends 100 3x
Advertises to BB3 100:542 and prepends 100 3x
I believe it should be solved as:
tags prefix 150.1.33.33 with community 100:546
tags prefix 150.1.133.133 with community 100:542
Advertise to BB1 100:542 and prepends 100 3x
Advertises to BB3 100:546 and prepends 100 3x
I think the SG solution achieves the goal of ensuring the right prefix is preferred over the correct link, but I think it missed the requirement that states which community must be advertise to which BB router and prepended.
Thoughts?