Cisco Systems A9014CFD manual Configuring Multihop Bidirectional Forwarding Detection, 29-1

C H A P T E R 29

Configuring Multihop Bidirectional Forwarding Detection

Cisco ASR 901 supports Bidirectional Forwarding Detection(BFD) on arbitrary paths, which can span multiple network hops. The multihop BFD feature provides subsecond forwarding failure detection for a destination with more than one hop and up to 255 hops. A multihop BFD session is set up between a unique source-destination address pair provided by the client. A session can be set up between two endpoints that have IP connectivity.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the “Feature Information for Multihop BFD” section on page 29-7.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Contents

•Restrictions for Multihop BFD, page 29-2

•Information About Multihop BFD, page 29-2

•How to Configure Multihop BFD, page 29-2

•Configuration Examples for Multihop BFD, page 29-4

•Where to Go Next

•Additional References, page 29-6

•Feature Information for Multihop BFD, page 29-7

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09		29-1