D-Link DGS-6604 [1042/1106] Command mode

D-Link DGS-6604 [1042/1106] Command mode
DGS-6600 Series Switch m traceroute lsp
CLI Reference Guide
1032
traceroute lsp
Use this command for hop-by-hop fault localization as well as path tracing LSP of
specified FEC.
traceroute lsp NETWORK-PREFIX | PREFIX-LENGTH [timeout SECONDS]
Default N/A.
Command Mode EXEC mode.
Usage Guideline The traceroute lsp 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 Psuedowire.
If there is no LSP for the specified FEC, the "Destination unreachable or local"
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.
Example To trace route the LSP for network 40.0.0.0/24.
124: the size of IP payload of MPLS echo reply
72: the size of MPLS echo payload
104: the size of IP payload of MPLS echo request.
To trace route the LSP for network 30.0.0.0/24
Syntax Description
NETWORK-PREFIX |
PREFIX-LENGTH
Specifies the IPv4 prefix FEC which LDP connectivity will be checked.
timeout SECONDS 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.
Switch# traceroute lsp 40.0.0.0/24
TRACE LSP 40.0.0.0/24 (40.0.0.0) 72(104) bytes of data
1: 124 bytes from 20.0.0.2, code=3, subcode=1
2: 124 bytes from 30.0.0.3, code=3, subcode=1
--- 40.0.0.0/24 traceroute statistics ---
packets transmitted = 2, received = 2

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