CLI Guide

Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
Routers supporting 4-byte ASNs advertise that function in the OPEN message. The behavior of a 4-byte router is
slightly dierent depending on whether it is speaking to a 2-byte router or a 4-byte router.
When creating Confederations, all the routers in the Confederation must be 4 byte or 2 byte identied routers. You
cannot mix them.
Where the 2-byte format is from 1 to 65535, the 4-byte format is from 1 to 4294967295. Both formats are
accepted and the advertisements reect the entered format.
For more information about using the 2 byte or 4-byte format, refer to the Dell Networking OS Conguration
Guide.
bgp graceful-restart
To support graceful restart as a receiver only, enable graceful restart on a BGP neighbor, a BGP node, or designate a local router.
Syntax
bgp graceful-restart [restart-time seconds] [stale-path-time seconds] [role
receiver-only]
To return to the default, use the no bgp graceful-restart command.
Parameters
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
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
This feature is advertised 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.
BGP graceful restart is active only when the neighbor becomes established. Otherwise it is disabled. Graceful-
restart applies to all neighbors with established adjacency.
Border Gateway Protocol IPv4 (BGPv4) 297