On a medium-sized network configured with BGP, two RRs are typically deployed to improved BGP RR reliability. Typically, the cluster IDs of the two RRs are set as the same. Which of the following is the reason for that?
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H12-891 Exam - Question 7
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Correct Answer: A
In a BGP network, using the same cluster ID for Route Reflectors (RRs) helps to prevent routing loops. When RRs have the same cluster ID, they recognize updates coming from other RRs within the same cluster and avoid retransmitting these updates. This mechanism helps to ensure that routing information is not circulated in loops, which would lead to routing inefficiencies and potential instability in the network. While memory insufficiency and sub-optimal routes are concerns with BGP, the primary reason for using the same cluster ID in multiple RRs is to prevent routing loops.
Discussion
3 commentsgorillaenhancedOption: C
Aug 27, 2024Question is not why do we use cluster ID (which is prevent loops), but rather why we use the same ID which is IMO to prevent memory insufficiency on the RR
7c3a129Option: A
Jul 12, 2024to prevent loops
Fighter2k
Aug 4, 2024Why not C?