A network administrator is configuring a BGP router with the neighbor 10.12.1.2 maximum-prefix 10 command. What will happen when the peer at 10.12.1.2 advertises more than 10 routes?

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Question:

A network administrator is configuring a BGP router with the neighbor 10.12.1.2 maximum-prefix 10 command. What will happen when the peer at 10.12.1.2 advertises more than 10 routes?

The router drops any further advertisements from the peer.
The router sends a warning message to the peer.
The router closes the BGP session for 30 seconds and then restarts the BGP peering process.
The router moves the peer to the Idle state and closes the BGP session.

Explanation: The prefix restrictions can be put on a BGP neighbor by using the BGP address family configuration command neighbor ip-address maximum-prefix prefix-count [ warning-percentage ] [ restart time ] [ warning-only ]. When a peer advertises more routes than the maximum prefix count, the router moves the neighbor to the Idle (PfxCt) state in the finite-state machine (FSM), closes the BGP session, and sends out the appropriate syslog message.

A network administrator is configuring a BGP router with the neighbor 10.12.1.2 maximum-prefix 10 command. What will happen when the peer at 10.12.1.2 advertises more than 10 routes?

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