Mypower
S4100
Troubleshooting
Maipu Confidential & Proprietary Information
Page
104
of
124
no synchronization
neighbor 21.1.1.1 remote-as 1
exit
Note: BGP uses TCP connection to create neighbors. According to the
configuration, the IP addresses for creating TCP connections are 21.1.1.1
and 21.1.1.2. In the instance, two switches are directly connected. If the
link layer is available, the TCP connection can be created. Generally, for
the switches not directly adjacent, to create neighbors, you should ensure
that the specified IP addresses are available, namely, the addresses can
be pinged, otherwise, the neighbors cannot be created.
Use the show tool to collect the following information on switch 1.
Interface table information:
Command: show ip bgp neighbor
(1) BGP neighbor is 21.1.1.2, remote AS 2, Type: External link
(2) BGP Version: 4, remote router ID 14.14.14.14
(3) BGP State = Established, up for 00:41:12 Flags: <>
(4) BGP Last State: OpenConfirm, Last Event: RecvKeepAlive,
Last Error: None Last read update(keepalive) 00:01:12
(5) Hold time is 180, keepalive interval is 60 seconds
Minimum time between advertisement runs is 0 seconds
Neighbor capabilities:
Route refresh: advertised and received(new)
Route refresh: advertised and received(old)
Address family IPv4 Unicast: advertised and received
(6) Local host: 21.1.1.1, Local port: 1024 Out interface vlan1
(7) Foreign host: 21.1.1.2, Foreign port: 179
Last traffic (seconds): Received 41 Sent 0 Checked 0
Input messages: Total 62 Updates 0 Octets 1178
Output messages: Total 65 Updates 2 Octets 1352
Route Queue Timer: unset
Ipv4 unicast Route Queue: empty
Vpnv4 unicast Route Queue: empty
Comm
ents on the information:
1.
For the neighbor IP address, AS ID, adjacent type (EBGP adjacency),
the corresponding command is neighbor 21.1.1.2 remote-as 2
2.
The BGP version, peer router ID.
3.
Neighbor status
4.
The status, event, error event, and the time of receiving update
packets before the BGP neighbor.
