Specifications

ping mpls
MP-391
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
Sending 5, 1476-byte MPLS Echos to 10.131.191.252, timeout is 2 seconds:
Codes:
'!' - success, 'Q' - request not sent, '.' - timeout,
'L' - labeled output interface, 'B' - unlabeled output interface,
'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch,
'M' - malformed request, 'm' - unsupported tlvs, 'N' - no rx label,
'P' - no rx intf label prot, 'p' - premature termination of LSP,
'R' - transit router, 'X' - unknown return code, 'x' - return code 0
Type escape sequence to abort.
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 80/83/92 ms
The following example shows how to test the connectivity of an MPLS TE tunnel:
Router# ping mpls traffic-eng tunnel tun3 repeat 5 verbose
Sending 5, 100-byte MPLS Echos to Tunnel3,
timeout is 2 seconds, send interval is 0 msec:
Codes:
'!' - success, 'Q' - request not sent, '.' - timeout,
'L' - labeled output interface, 'B' - unlabeled output interface,
'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch,
'M' - malformed request, 'm' - unsupported tlvs, 'N' - no rx label,
'P' - no rx intf label prot, 'p' - premature termination of LSP,
'R' - transit router, 'X' - unknown return code, 'x' - return code 0
Type escape sequence to abort.
! 10.131.159.198, return code 3
! 10.131.159.198, return code 3
! 10.131.159.198, return code 3
! 10.131.159.198, return code 3
! 10.131.159.198, return code 3
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/37/40 ms
The MPLS LSP ping feature is useful if you want to verify TE tunnels before actually mapping traffic
onto them.
The following example shows a ping mpls
command that specifies segment 2 of a multisegment
pseudowire:
Router# ping mpls pseudowire 10.131.191.252 333 segment 2
Related Commands Command Description
mpls oam Customizes the default behavior of echo packets.
trace mpls Discovers MPLS LSP routes that packets will actually take when traveling
t
o their destinations.