Command
History
Version 9.2(0.0)
Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
When you enable failover, BGP keeps track of IP or IPv6 ability to reach the peer
remote address and the peer local address. Whenever either address becomes
unreachable (for example, no active route exists in the routing table for the peer IP
or IPv6 destination/local address), BGP brings down the session with the peer.
Related
Commands
show ip bgp neighbors
— displays information on the BGP neighbors.
neighbor graceful-restart
Enable graceful restart on a BGP neighbor.
Syntax
neighbor {
ip-address
|
peer-group-name
} graceful-restart
[restart-time
seconds
] [stale-path-time
seconds
] [role
receiver-only]
To return to the default, enter the
no bgp graceful-restart
command.
Parameters
ip-address
Enter the IP address of the neighbor in dotted decimal
format.
peer-group-
name
Enter the name of the peer group to apply the filter to all
routers in the peer group.
restart-time
seconds
Enter the keyword
restart-time
then the maximum
number of seconds to restart and bring-up all the peers. The
range is from 1 to 3600 seconds. The default is
120 seconds
.
stale-path-time
seconds
Enter the keyword
stale-path-time
then the maximum
number of seconds to wait before restarting a peer’s stale
paths. The default is
360 seconds
.
role receiver-
only
Enter the keyword
role receiver-only
to designate the
local router to support graceful restart as a receiver only.
Defaults
as above
Command
Modes
ROUTER BGP
Command
History
Version 9.2(0.0)
Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
This feature advertises to BGP neighbors through a capability advertisement. In
Receiver Only mode, BGP saves the advertised routes of peers that support this
capability when they restart.
344
Border Gateway Protocol IPv4 (BGPv4)
