Traceroute Lsp - D-Link xStack DGS-3620 Series Reference Manual

DGS-3620 m/ mSW Rls. 1.02.000

10-41 traceroute lsp

traceroute lsp NETWORK-PREFIX/PREFIX-LENGTH [ timeout SECONDS ]
Syntax Description
NETWORK-PREFIX/
PREFIX-LENGTH
timeout SECONDS
Default
Command Mode
Usage Guideline
Example
Switch# traceroute lsp 192.1.1.0/24
Tracing route to 192.1.1.0/24
1 Reply from 170.1.1, time<10ms
2 Reply from 200.1.2.3, time=20ms
3 Reply from 210.1.1.4, time=30ms
4 Reply from 192.1.1.1, time=40ms
Trace complete.
CLI Reference Guide
Use this command for hop-by-hop fault localization as well as path tracing LSP of
specified FEC.
Specifies the IPv4 prefix FEC which LSP connectivity will be checked.
Specifies the timeout interval in seconds for an MPLS request packet. The value
range is 1-99 seconds and the default value is 2 seconds.
N/A.
EXEC mode.
The traceroute lsp command is used for hop-by-hop fault localization as well as
path tracing LSP of specified FEC. The FEC can be an IP prefix or a L2VPN
Pseudowire.
If there is no LSP for the specified FEC, the "Destination unreachable" message
will be displayed.
Otherwise, MPLS echo request messages will be sent out to along the LSP of
the specified FEC. The TTL in the outmost label of the MPLS echo requests is
set successively to 1, 2, 3, and so on. It force the echo request expired at each
successive LSR along the LSP. The LSR returns an MPLS echo reply.
If the sender cannot receive reply before timeout, the traceroute will stop.
To trace route the LSP for network 192.1.1.0/24:
traceroute lsp
315