
BGP Commands
©2008 Allied Telesis Inc. All rights reserved.
Software Version 5.2.1
AlliedWare Plus
TM
Operating System Software Reference C613-50003-00 REV E
31.93
synchronization
Use this command to enable IGP synchronization of Internal BGP (iBGP) learned routes with
the Internal Gateway Protocol (IGP) system in the router configuration mode or in the
address-family configuration mode.
Use the
no
parameter with this command to disable this function.
Syntax
synchronization
no synchronization
Default
IGP synchronization is disabled.
Mode
Router mode and Address Family [
ipv4 unicast|ipv4 multicast|vpnv4
unicast]
mode
Usage
Synchronization is used when a BGP router should not advertise routes learned from iBGP
neighbors, unless those routes are also present in an IGP (for example, OSPF). Synchronization
may be enabled when all the routers in an autonomous system do not speak BGP, and the
autonomous system is a transit for other autonomous systems. The
no
synchronization
command is used when BGP router can advertise routes learned from
its iBGP neighbors without waiting for the IGP reachability to be present.
Examples
The following example enables IGP synchronization of iBGP routes in Router mode.
The following example enables IGP synchronization of iBGP routes in the IPv6-Unicast address
family.
awplus#
configure terminal
awplus(config)#
router bgp 11
awplus(config-router)#
synchronization
awplus#
configure terminal
awplus(config)#
router bgp 11
awplus(config)#
address-family ipv6 unicast
awplus(config-af)#
synchronization