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crow930us Tue, 12/30/2008 - 21:57
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From a Network World article:

Using BGP graceful restart, the data-forwarding plane of a router can continue to process and forward packets even if the control plane - which is responsible for determining best paths - fails.


Graceful restart also reduces routing flaps, which stabilizes the network and reduces the consumption of control-plane resources.

http://www.networkworld.com/details/824.html?def


Cisco Documentation can be found here:

http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ftbgpnsf.html#wp1041499

SunilKhanna Wed, 04/13/2011 - 07:21
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Graceful Restart (GR) is a way to rebuild forwarding information in routing protocols when the control plane has recovered from a failure.


EIGRP


router eigrp 100

eigrp nsf


OSPF


Router(config)# router ospf 4

Router(config-router)# nsf cisco/ietf


BGP


switch(config)# router bgp 65536

switch(config-router)# graceful-restart





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