R2511-HP MSR Router Series Network Management and Monitoring Command Reference(V5)

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Field Descri
p
tion
MPLS Label=100048 Exp=0 TTL=1
S=1
ICMP timeout packets on an MPLS network, carry MPLS label
information:
• Label—Label value that is used to identify a forwarding
equivalence class (FEC).
• Exp—Reserved, usually used for class of service (CoS).
• TTL—TTL value.
• S—MPLS supports multiple levels of labels. Value 1 indicates that
the label is at the bottom of the label stack, and value 0 indicates
that the label is not at the bottom of the label stack.
tracert ipv6
Use tracert ipv6 to view the path the IPv6 packets traverse from source to destination.
Syntax
tracert ipv6 [ -f first-ttl | -m max-ttl | -p port | -q packet-number | -vpn-instance vpn-instance-name | -w
timeout ] * host
Views
Any view
Default command level
0: Visit level
Parameters
-f first-hop: Specifies the TTL value of the first packet. The value range is 1 to 255, and the default is 1.
The value must be less than the value of the max-hops argument.
-m max-hops: Specifies the maximum number of hops allowed for a packet. The value range is 1 to 255,
and the default is 30. It must be greater than the value of the first-hop argument.
-p port: Specifies the UDP port number of the destination. The value range is 1 to 65535, and the default
value 33434.
-q packet-number: Specifies the number of probe packets sent each time. The value range is 1 to 65535,
and the default is 3.
-vpn-instance vpn-instance-name: Specifies the MPLS L3VPN instance to which the destination belongs,
where vpn-instance-name is a case-sensitive string of 1 to 31 characters. If the destination is on the public
network, do not specify this option.
-w timeout: Specifies the timeout time (in milliseconds) of the reply packet of a probe packet. The value
range is 1 to 65535, and the default is 5000.
host: Specifies the IPv6 address or host name of the destination. The host name is a case-insensitive string
of 1 to 253 characters.
Usage guidelines
After having identified network failure with the ping command, you can use the tracert command to
determine the failed nodes.
Output from the tracert ipv6 command includes IPv6 addresses of all the Layer 3 devices the packets
traverse from source to destination. Asterisks (* * *) are displayed if the device cannot reply with an