Juniper
JN0-643 · Question #138
JN0-643 Question #138: Real Exam Question with Answer & Explanation
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Question
Looking at the traceoptions output in the exhibit, why is the BGP neighbor not in Established state? Mar 16 18:39:15.800390 BGP RECV 172.14.10.2+57785 -> 172.14.10.1+179 Mar 16 18:39:15.800932 BGP RECV message type 1 (Open) length 59 Mar 16 18:39:15.800995 BGP RECV version 4 as 2 holdtime 90 id 192.168.5.1 parmlen 30 Mar 16 18:39:15.801064 BGP RECV MP capability AFI=2, SAFI=1 Mar 16 18:39:15.801112 BGP RECV Refresh capability, code=128 Mar 16 18:39:15.801172 BGP RECV Refresh capability, code=2 Mar 16 18:39:15.801224 BGP RECV Restart capability, code=64, time=120, flags= Mar 16 18:39:15.801289 BGP RECV 4 Byte AS-Path capability (65), as_num 2 Mar 16 18:39:15.801705 advertising receiving-speaker only capabilty to neighbor 172.14.10.2 (External AS 2) Mar 16 18:39:15.801787 bgp_senD. sending 59 bytes to 172.14.10.2 (External AS 2) Mar 16 18:39:15.801845 Mar 16 18:39:15.801845 BGP SEND 172.14.10.1+179 -> 172.14.10.2+57785 Mar 16 18:39:15.801933 BGP SEND message type 1 (Open) length 59 Mar 16 18:39:15.801991 BGP SEND version 4 as 1 holdtime 90 id 192.168.2.1 parmlen 30 Mar 16 18:39:15.802054 BGP SEND MP capability AFI=1, SAFI=1 Mar 16 18:39:15.802115 BGP SEND Refresh capability, code=128 Mar 16 18:39:15.802176 BGP SEND Refresh capability, code=2 Mar 16 18:39:15.802227 BGP SEND Restart capability, code=64, time=120, flags= Mar 16 18:39:15.802292 BGP SEND 4 Byte AS-Path capability (65), as_num 1 Mar 16 18:39:15.802615 bgp_process_caps: mismatch NLRI with 172.14.10.2 (External AS 2): peer: <inet6-unicast>(16) us: <inet-unicast>(1) Mar 16 18:39:15.802763 bgp_process_caps:2561: NOTIFICATION sent to 172.14.10.2 (External AS 2): code 2 (Open Message Error) subcode 7 (unsupported capability) value 1 Mar 16 18:39:15.802913 bgp_senD. sending 23 bytes to 172.14.10.2 (External AS 2) Mar 16 18:39:15.802969 Mar 16 18:39:15.802969 BGP SEND 172.14.10.1+179 -> 172.14.10.2+57785 Mar 16 18:39:15.803057 BGP SEND message type 3 (Notification) length 23 Mar 16 18:39:15.803113 BGP SEND Notification code 2 (Open Message Error) subcode 7 (unsupported capability) Mar 16 18:39:15.803179 BGP SEND Data (2 bytes): 00 01
Options
- ABGP refresh is not supported.
- BThere is a router ID mismatch.
- CIPv6 is not supported on the local peer.
- DThe peer AS number is misconfigured.
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