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Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) · Cisco
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with this (below) ACL both incoming (179) and outgoing (179) are blocked. BGP cannot be established. R7#show ip access-lists Extended IP access list ACL_BGP 10 permit tcp any any eq bgp (45 matches) 20 permit tcp any eq bgp any (3 matches) R7#sh policy-map control-plane Control Plane Service-policy input: CoPP_IN Class-map: CL_BGP (match-all) 76 packets, 4826 bytes 5 minute offered rate 0000 bps, drop rate 0000 bps Match: access-group name ACL_BGP drop Class-map: class-default (match-any) 237 packets, 55172 bytes 5 minute offered rate 0000 bps, drop rate 0000 bps Match: any R7#
The A is correct because default class map has number Id 0 and other class map configured will take high number id 1or2
Labbed with 3 routers the peers i set with ACL in class map could no establish session so C is correct.