Point-to-Multipoint LSPs Connectivity Verification at Egress Nodes Overview

JunosE Software enables you to use the MPLS ping feature to detect data plane failures in point-to-multipoint MPLS LSPs. The implementation of the RSVP-TE protocol in JunosE Software was previously enhanced to enable you to configure E Series routers as tunnel-tail or egress nodes for point-to-multipoint MPLS LSPs. You can use the point-to-multipoint LSP ping functionality, which is available in routers other than E Series routers, to send echo request packets and receive echo reply packets to test network connectivity of point-to-multipoint RSVP-TE MPLS LSPs that contain E Series routers as egress nodes. You cannot use the ping commands for other point-to-multipoint MPLS applications, such as LDP LSPs because E Series routers do not support such functionality. In addition, because E Series routers do not support ingress, transit, or branch label-switched routers (LSR) roles for point-to-multipoint LSPs, they do not support the point-to-multipoint MPLS ping feature for ingress, transit, or branch nodes.

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