DGS-6604 m synchronization
CLI Reference Guide
890
synchronization
To enable the synchronization between Border Gateway Protocol (BGP) and an
external Interior Gateway Protocol (IGP) system, use the synchronization
command. To advertise a network route without waiting for the IGP, use the no
form of this command.
synchronization
no synchronization
Syntax None
Default Disabled
Command Mode Router configuration
Address family configuration
Usage Guideline Usually, a BGP speaker does not advertise a route to an external neighbor
unless that route is local or exists in the IGP. By default, synchronization between
BGP and an IGP is disabled to allow the switch to advertise a network route
without waiting for route validation from the IGP. This feature allows routers and
access servers within an autonomous system to have the route before BGP
makes it available to other autonomous systems.
Use the synchronization command if the other routers in an autonomous
system do not speak BGP.
Example This example shows how to enable synchronization in AS 65121.
Switch(config)# router bgp 65121
Switch(config-router)# synchronization
Switch(config-router)#
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