WB1 7.47 BGP Filtering with Maximum Prefix

7.47 BGP Filtering with Maximum Prefix
• Configure R6 so that the peering session to BB1 is torn down if R6 learns
more than 20 BGP prefixes from that neighbor.
• Once 16 prefixes are received from BB1, R6 should begin generating
warning messages.
• Once down the peering should attempt to be restarted after three minutes.
• Configure SW1 so that if more than 20 prefixes are learned from R3
warning messages should be generated, but the peering session should
NOT be terminated.

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The command is neighbor <IP> maximum-prefix <Number> [<Threshold%>] [warning-only]|[restart <minutes>].

R6:
router bgp 100
neighbor 54.1.1.254 maximum-prefix 20 80 restart 3

SW1:
router bgp 300
neighbor 155.1.37.3 maximum-prefix 20 warning-only