SYSTEM, METHOD AND APPARATUS PROVIDING BI-DIRECTIONAL FORWARDING DETECTION SUPPORT TO UNNUMBERED IP INTERFACES

摘要

A system, method and apparatus providing BFD support to unnumbered IP Interfaces in MPLS networks using a newly defined interface identifier (IF-ID) sub-object included within one or more BFD protocol messages to extend the use of BFD protocol to unnumbered IP interfaces.

主权项

1. A method of establishing a BFD session between first and second nodes, the method comprising:
at the first node, transmitting a BFD control packet toward the second node via a first unnumbered interface, the BFD control packet having a predetermined field including a unique value identifying the first unnumbered interface; at the first node, in response to receiving a BFD control packet having a predetermined field including the unique value identifying the first unnumbered interface, creating an association between the unique value identifying the first unnumbered interface and a discriminator value associated with the BFD session.