Point-To-Multipoint Lsps Connectivity Verification At Egress Nodes Overview; Ping Extensions For Point-To-Multipoint Lsps Connectivity Verification At Egress Nodes - Juniper BGP - CONFIGURATION GUIDE V 11.1.X Configuration Manual

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.
Related Topics
Ping Extensions for Point-to-Multipoint LSPs Connectivity Verification at Egress
Nodes
To enable detection of data plane failures at egress nodes in point-to-multipoint LSPs,
the MPLS ping extensions in point-to-multipoint LSPs define the following new
sub-type-length-values (TLVs) for the Target FEC Stack TLV and new TLVs:
ping mpls l3vpn
ping mpls rsvp tunnel
ping mpls vpls
trace mpls ip
trace mpls l2transport
trace mpls l3vpn
trace mpls rsvp tunnel
trace mpls vpls
Ping Extensions for Point-to-Multipoint LSPs Connectivity Verification at Egress
Nodes on page 237
TLVs and Sub-TLVs Supported for Point-to-Multipoint LSPs Connectivity
Verification at Egress Nodes on page 239
Verifying and Troubleshooting MPLS Connectivity on page 367
RSVP P2MP IPv4 Session sub-TLV
P2MP Responder Identifier TLV
Echo Jitter TLV
Point-to-Multipoint LSPs Connectivity Verification at Egress Nodes Overview
Chapter 2: MPLS Overview
237