Administrator Guide
neighbor shutdown
Disable a BGP neighbor or peer group.
C9000 Series
Syntax
neighbor {ipv6-address | peer-group-name} shutdown
To enable a disabled neighbor or peer group, use the no neighbor {ipv6-address | peer-group-
name} shutdown command.
Parameters
ipv6-address
Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal fields of zeros.
peer-group-name
Enter the name of the peer group to disable or enable all routers within the peer group.
Defaults Enabled (that is, BGP neighbors and peer groups are disabled.)
Command Modes ROUTER BGP
Command History
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
Usage Information
Peers that are enabled within a peer group are disabled when their peer group is disabled.
The neighbor shutdown command terminates all BGP sessions on the BGP neighbor or BGP peer group. Use
this command with caution as it terminates the specified BGP sessions. When a neighbor or peer group is
shutdown, use the show ip bgp summary command to confirm its status.
Related
Commands
• show ip bgp summary – displays the current BGP configuration.
• show ip bgp neighbors – displays the current BGP neighbors.
neighbor timers
Set keepalive and hold time timers for a BGP neighbor or a peer group.
C9000 Series
Syntax
neighbor {ipv6-address | peer-group-name} timers keepalive holdtime
To return to the default values, use the no neighbor {ipv6-address | peer-group-name} timers
command.
Parameters
ipv6-address
Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal fields of zeros.
peer-group-name
Enter the name of the peer group to set the timers for all routers within the peer group.
keepalive
Enter a number for the time interval, in seconds, between keepalive messages sent to the
neighbor routers. The range is 1 to 65535. The default is 60 seconds.
holdtime
Enter a number for the time interval, in seconds, between the last keepalive message and
declaring the router dead. The range is 3 to 65535. The default is 180 seconds.
Defaults
• keepalive = 60 seconds
• holdtime = 180 seconds
Border Gateway Protocol 459