display bgp peer log-info

Function

The display bgp peer log-info command displays log information about BGP peers.

Format

display bgp [ instance instance-name ] peer { ipv4-address | group-name } log-info

display bgp vpnv4 vpn-instance vpn-instance-name peer ipv4-address log-info

display bgp instance instance-name vpnv4 vpn-instance vpn-instance-name peer ipv4-address log-info

display bgp all peer log-info

display bgp peer ipv6-address log-info

display bgp vpnv4 vpn-instance vpn-instance-name peer-group group-name log-info

display bgp instance instance-name vpnv4 vpn-instance vpn-instance-name peer-group group-name log-info

Parameters

Parameter	Description	Value
instance instance-name	Specifies a BGP multi-instance.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
peer ipv4-address	Specifies the IPv4 address of a peer to be displayed.	The value is in dotted decimal notation.
group-name	Specifies the name of a peer group.	The name is a string of 1 to 47 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
log-info	Displays log information of the specified peer.	-
vpnv4	Displays information about peers in a VPNv4 instance.	-
vpn-instance vpn-instance-name	Specifies the name of a VPN instance.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. In addition, the VPN instance name must not be _public_. When double quotation marks are used around the string, spaces are allowed in the string.
all	Displays information about peers in all VPNv4 instances.	-
ipv6-address	Specify an IPv6 peer address.	The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.
peer-group	Specifies a peer group.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
bgp	read

Usage Guidelines

Usage Scenario

The display bgp peer log-info command can be used for troubleshooting, with details as follows: If BGP peers are disconnected, specify log-info in the command to check the log information of the specified peer. In the command output, Date/Time indicates the time when the peers were disconnected, and Error Code and Error Subcode indicate the cause of the disconnection.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display log information on BGP peer 1.1.1.2.

<HUAWEI> display bgp peer 1.1.1.2 log-info
Peer : 1.1.1.2 
 Date/Time     : 2011/13/06 11:53:21
 State         : Up
 Date/Time     : 2011/13/06 11:53:09
 State         : Down
 Error Code    : 6(CEASE)
 Error Subcode : 4(Administrative Reset)
 Notification  : Receive Notification
 Date/Time     : 2011/13/06 10:34:05
 State         : Up

**Table 1** Description of the **display bgp peer log-info** command output
Item	Description
Peer	IP address of the peer.
Date/Time	Date and time.
State	Status.
Error Code	Error code. For the meanings and possible causes of error codes, see BGP Fundamentals - BGP Notification Messages. These messages are used to process various errors in the BGP process.
Error Subcode	Error subcode. For details about error subcodes and possible causes, see BGP Fundamentals - BGP Notification Messages. These messages are used to process various errors in the BGP process.
Notification	Notification message sent or received by a peer.