Specifications

echo
MP-59
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
routers in the network to operate in Revision 3 mode. Revision 3 mode is used only with Multiprotocol
Label Switching (MPLS) LSP ping or traceroute. Revision 3 mode does not support MPLS multipath
L
SP traceroute.
The v
endor-extension keyword is enabled by default in the router. If your network includes routers that
are not Cisco routers, you may want to disable Cisco extended TLVs. To disable Cisco extended TLVs,
specify the no echo vendor-extension command in MPLS OAM configuration mode. To enable Cisco
extended TLVs again, respecify the echo command with the vendor-extension keyword.
Examples The following example uses Revision 3 of the echo packets and sends the vendor’s extension TLV with
th
e echo packet:
mpls oam
echo revision 3
echo vendor-extension
exit
Related Commands Command Description
mpls oam Enters MPLS OAM configuration mode for customizing the default behavior
of ec
ho packets.