3 Aman Shaikh: June 02 UCSC INFOCOM 2002 We Can do Better Router can continue forwarding even while its routing process is inactive, at least for a while –Current routers have separate routing and forwarding paths Routing in software (CPU), forwarding in hardware (switching) Routing protocols need to be extended since they always try to route around inactive router Our proposal: IBB (I'll Be Back) Extension to OSPF Other proposals –OSPF: Hitless restart proposal by Jonh Moy Internet draft: draft-ietf-ospf-hitless-restart-02.txt –BGP: Graceful restart proposal by Sangli et al.
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