Redundant BGP route reflectors are supported through the use of which BGP attribute?

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IT Exam Items Repository › Category: CCNP ENARSI v9 › Redundant BGP route reflectors are supported through the use of which BGP attribute?

Redundant BGP route reflectors are supported through the use of which BGP attribute?

Local preference
Atomic aggregate
MED
Cluster-list

Explanation: To prevent routing loops in redundant route reflector designs, BGP uses the cluster-list attribute. When a route is reflected, the route reflector adds its Cluster ID to the cluster-list; if a reflector receives an update containing its own Cluster ID, it ignores the update to prevent a loop.

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