Exhibit
Referring to the exhibit, what do the brackets [ ] in the AS path identify?
They identify the local AS number associated with the AS path if configured on the router, or if AS path prepending is configured
They identify an AS set, which are groups of AS numbers in which the order does not matter
They identify that the autonomous system number is incomplete and awaiting more information from the BGP protocol.
They identify that a BGP confederation is being used to ensure that there are no routing loops.
https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/command/show-route-advertising-protocol.html
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