— Exhibit —
user@router# run show log bgp-test
…
Jun 10 23:50:43.056697 BGP SEND 192.168.133.1+179 -> 192.168.133.0+64925
Jun 10 23:50:43.056739 BGP SEND message type 3 (Notification) length 23
Jun 10 23:50:43.056760 BGP SEND Notification code 2 (Open Message Error) subcode 7
(unsupported capability)
Jun 10 23:50:43.056781 BGP SEND Data (2 bytes): 00 04
Jun 10 23:50:52.215104 advertising receiving-speaker only capabilty to neighbor ::192.168.133.0
(External AS 300)
Jun 10 23:50:52.215173 bgp_senD. sending 59 bytes to ::192.168.133.0 (External AS 300)
Jun 10 23:50:52.215200
Jun 10 23:50:52.215200 BGP SEND ::192.168.133.1+179 -> ::192.168.133.0+57107
Jun 10 23:50:52.215233 BGP SEND message type 1 (Open) length 59
Jun 10 23:50:52.215256 BGP SEND version 4 as 23456 holdtime 90 id 10.200.1.1 parmlen 30
Jun 10 23:50:52.215276 BGP SEND MP capability AFI=2, SAFI=1
Jun 10 23:50:52.215294 BGP SEND Refresh capability, code=128
Jun 10 23:50:52.215312 BGP SEND Refresh capability, code=2
Jun 10 23:50:52.215332 BGP SEND Restart capability, code=64, time=120, flags=
Jun 10 23:50:52.215353 BGP SEND 4 Byte AS-Path capability (65), as_num 2123456789
Jun 10 23:50:52.216018
Jun 10 23:50:52.216018 BGP RECV ::192.168.133.0+57107 -> ::192.168.133.1+179
Jun 10 23:50:52.216058 BGP RECV message type 3 (Notification) length 21
Jun 10 23:50:52.216079 BGP RECV Notification code 2 (Open Message Error) subcode 2 (bad peer AS
number)
Jun 10 23:51:15.058112 advertising receiving-speaker only capabilty to neighbor 192.168.133.0
(External AS 300)
Jun 10 23:51:15.058192 bgp_senD. sending 59 bytes to 192.168.133.0 (External AS 300)
Jun 10 23:51:15.058217
Jun 10 23:51:15.058217 BGP SEND 192.168.133.1+50083 -> 192.168.133.0+179
Jun 10 23:51:15.058250 BGP SEND message type 1 (Open) length 59
Jun 10 23:51:15.058273 BGP SEND version 4 as 65001 holdtime 90 id 10.200.1.1 parmlen 30
Jun 10 23:51:15.058294 BGP SEND MP capability AFI=1, SAFI=128
Jun 10 23:51:15.058312 BGP SEND Refresh capability, code=128
Jun 10 23:51:15.058331 BGP SEND Refresh capability, code=2
Jun 10 23:51:15.058386 BGP SEND Restart capability, code=64, time=120, flags=
Jun 10 23:51:15.058416 BGP SEND 4 Byte AS-Path capability (65), as_num 65001
Jun 10 23:51:15.058651 bgp_pp_recv:3140: NOTIFICATION sent to 192.168.133.0 (External AS 300):
code 6 (Cease) subcode 7 (Connection collision resolution), Reason: dropping 192.168.133.0
(External AS 300), connection collision prefers 192.168.133.0+53170 (proto)
Jun 10 23:51:15.058680 bgp_senD. sending 21 bytes to 192.168.133.0 (External AS 300)
Jun 10 23:51:15.058702
Jun 10 23:51:15.058702 BGP SEND 192.168.133.1+50083 -> 192.168.133.0+179
Jun 10 23:51:15.058735 BGP SEND message type 3 (Notification) length 21
Jun 10 23:51:15.058755 BGP SEND Notification code 6 (Cease) subcode 7 (Connection collision
resolution)
Jun 10 23:51:15.059557 advertising receiving-speaker only capabilty to neighbor 192.168.133.0
(External AS 300)
Jun 10 23:51:15.059594 bgp_senD. sending 59 bytes to 192.168.133.0 (External AS 300)
Jun 10 23:51:15.059617
Jun 10 23:51:15.059617 BGP SEND 192.168.133.1+179 -> 192.168.133.0+53170
Jun 10 23:51:15.059649 BGP SEND message type 1 (Open) length 59
Jun 10 23:51:15.059671 BGP SEND version 4 as 65001 holdtime 90 id 10.200.1.1 parmlen 30
Jun 10 23:51:15.059691 BGP SEND MP capability AFI=1, SAFI=128
Jun 10 23:51:15.059709 BGP SEND Refresh capability, code=128
Jun 10 23:51:15.059727 BGP SEND Refresh capability, code=2
Jun 10 23:51:15.059747 BGP SEND Restart capability, code=64, time=120, flags=
Jun 10 23:51:15.059768 BGP SEND 4 Byte AS-Path capability (65), as_num 65001
Jun 10 23:51:15.060383 bgp_process_caps: mismatch NLRI with 192.168.133.0 (External AS 300):
peer: (1) us: (4)
Jun 10 23:51:15.060445 bgp_process_caps:2578: NOTIFICATION sent to 192.168.133.0 (External AS
300): code 2 (Open Message Error) subcode 7 (unsupported capability) value 4
Jun 10 23:51:15.060470 bgp_senD. sending 23 bytes to 192.168.133.0 (External AS 300)
Jun 10 23:51:15.060492
Jun 10 23:51:15.060492 BGP SEND 192.168.133.1+179 -> 192.168.133.0+53170
Jun 10 23:51:15.060556 BGP SEND message type 3 (Notification) length 23
Jun 10 23:51:15.060578 BGP SEND Notification code 2 (Open Message Error) subcode 7
(unsupported capability)
Jun 10 23:51:15.060600 BGP SEND Data (2 bytes): 00 04
— Exhibit —
What is causing the IPv4 BGP peering to stay in an active state?
A.
The peer AS is incorrect.
B.
The peer does not support 4-byte AS values.
C.
The peer has an NLRI mismatch.
D.
The peer has an incorrect IP address.