Concept Guide

• Enable graceful restart for the BGP node.
CONFIG-ROUTER-BGP mode
bgp graceful-restart
• Set maximum restart time, in seconds, to restart and bring-up all the peers.
CONFIG-ROUTER-BGP mode
bgp graceful-restart [restart-time time-in-seconds]
The default is 120 seconds.
• Set maximum time, in seconds, to retain the restarting peer’s stale paths.
CONFIG-ROUTER-BGP mode
bgp graceful-restart [stale-path-time time-in-seconds]
The default is 360 seconds.
• Enable the local router to support graceful restart as a receiver only.
CONFIG-ROUTER-BGP mode
bgp graceful-restart [role receiver-only]
Example conguration for enabling graceful restart
The below example conguration shows how to enable the BGP graceful restart.
DellEMC# configure terminal
DellEMC(conf)# router bgp 400
DellEMC(conf-router_bgp)# bgp graceful-restart
DellEMC(conf-router_bgp)# exit
Redistributing Routes
In addition to ltering routes, you can add routes from other routing instances or protocols to the BGP process. You can congure the
device to redistribute ISIS, OSPF, static, or directly connected routes into BGP process using the redistribute command.
To add routes from other routing instances or protocols, use any of the following commands in ROUTER BGP mode.
• Include directly connected or user-congured (static) routes into BGP.
ROUTER BGP or CONF-ROUTER_BGPv6_ AF mode
redistribute {connected | static} [route-map map-name]
Congure the following parameters:
– connected: Indicate that you are redistributing routes to directly connected routes into BGP.
– static: Indicate that you are redistributing static routes into BGP.
– route-map map-name: Specify the name of a congured route map to be consulted before adding the connected or static
route.
• Include specic ISIS routes into BGP.
ROUTER BGP or CONF-ROUTER_BGPv6_ AF mode
redistribute isis [level-1 | level-1-2 | level-2] [metric value] [route-map map-name]
Congure the following parameters:
– isis: Indicate that you are redistributing ISIS routes into BGP.
– level-1, level-1-2, or level-2: Assign all redistributed routes to a level. The default is level-2.
218
Border Gateway Protocol (BGP)