The linktrace function is supported by 802.1ag and Y.1731 on the 7705 SAR. A Linktrace Message (LTM) is originated by a MEP and targeted to a peer MEP in the same MA and within the same MD level. Its function is similar to IP traceroute. The peer MEP responds with a Linktrace Reply (LTR) message after successful inspection of the LTM.
ETH-LT tests are run using the oam>eth-cfm>linktrace command.