Juniper JUNOSE 11.2.X BGP AND MPLS

• ping mpls l2transport
• 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
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 TLVs and Sub-TLVs Supported for Point-to-Multipoint LSPs Connectivity Verification
at Egress Nodes on page 248
•
• Ping Extensions for Point-to-Multipoint LSPs Connectivity Verification at Egress Nodes
on page 246
• Verifying and Troubleshooting MPLS Connectivity on page 370
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:
•
RSVP P2MP IPv4 Session sub-TLV
•
P2MP Responder Identifier TLV
•
Echo Jitter TLV
Copyright © 2010, Juniper Networks, Inc.246
JunosE 11.2.x BGP and MPLS Configuration Guide