Note that bgp always-compare-med also enforces deterministic behavior in the path selection. If you use this statement you do not need to also use the bgp deterministic-med statement. The difference between the two, of course, is that the former is only used when you want to compare the MEDs of routes from different autonomous systems.
- Case Study: Using the MULTI_EXIT_DISC Attribute
- from Routing TCP/IP, Volume II: CCIE Professional Development, Second Edition
- Publisher: Cisco Press
- Released: September 2016
They're not the same! a-c-m supercedes d-m will finish the job at MED in the BGP decision algo.
Nothing else like whether the prefix is ebgp or ibgp-learnt or what is the lower router-id need be checked.
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