In asynchronous mode, either BFD peer can initiate a BFD session. See the "Restrictions for Bidirectional Forwarding Detection" section for more information on BFD routing protocol support in Cisco IOS software. See the IP routing documentation for your version of Cisco IOS software for information on configuring fast convergence. You should implement fast convergence for the routing protocol that you are using. One of the IP routing protocols supported by BFD must be configured on the routers before BFD is deployed.PXF is enabled by default and is generally not turned off. ![]() You must enable Cisco Parallel eXpress Forwarding (PXF) on the Cisco 10720 Internet router in order for BFD to operate properly.Cisco Express Forwarding (CEF) and IP routing must be enabled on all participating routers.Feature Information for Bidirectional Forwarding Detection.Configuration Examples for Bidirectional Forwarding Detection. ![]()
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