R0106-HP MSR Router Series MPLS Command Reference(V7)

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-v: Displays detailed reply information. If you do not specify this keyword, the command displays brief
reply information.
fec-check: Checks the FEC stack at transit nodes.
tunnel interface-number: Specifies an MPLS TE tunnel interface by the interface number.
Examples
# Trace the path that MPLS TE tunnel 1 traverses from the ingress node to the egress node.
<Sysname> tracert mpls te tunnel 1
MPLS trace route TE tunnel Tunnel1
TTL Replier Time Type Downstream
0 Ingress 10.4.5.1/[1025]
1 10.4.5.1 1 ms Transit 100.3.4.1/[1024]
2 100.3.4.1 63 ms Transit 100.1.2.1/[3]
3 100.1.2.1 129 ms Egress
For the command output, see Table 97.
vccv bfd
Use vccv bfd to configure BFD to verify PW connectivity.
Use undo vccv bfd to disable BFD for PWs.
Syntax
vccv bfd [ raw-bfd ] [ template template-name ]
undo vccv bfd
Default
BFD is not used to verify PW connectivity.
Views
PW class view
Predefined user roles
network-admin
Parameters
raw-bfd: Specifies the BFD packets to use PW-ACH encapsulation (without IP/UDP headers). This
keyword takes effect only when the CC type is control-word. If you do not specify this keyword, the BFD
packets use IP/UDP encapsulation (with IP/UDP headers).
template template-name: Specifies a BFD session parameter template by its name, a case-sensitive string
of 1 to 31 characters. If you specify template, BFD uses the multihop BFD session parameters configured
in system view.
Usage guidelines
After you execute this command and specify the PW class for a PW, the PEs use the specified
encapsulation type to verify PW connectivity when the following conditions are met:
• Both PEs of the PW have configured BFD for the PW.
• The PEs use the same encapsulation type for BFD packets.
Otherwise, the PEs do not use BFD to verify the PW connectivity.