R3303-HP HSR6800 Routers High Availability Command Reference

MAC Address TTL Forwarded Relay Action

0010-FC00-6512 63 No None

# Identify the path between source MEP 1101 and target MEP 2001 in service instance 1 when the IEEE

802.1ag draft 5.2 interim version of CFD is used.

<Sysname> system-view

[Sysname] cfd version draft5-plus

[Sysname] cfd linktrace service-instance 1 mep 1101 target-mep 2001

Linktrace to MEP 2001 with the sequence number 1101-43361 :

MAC Address TTL Forwarded Relay Action

0010-FC00-6512 63 No None

NOTE:

The output varies by CFD protocol version.

Table 10 Command output

Field Descri

tion

Linktrace to MEP 2001 with the

sequence number 1101-43361

Linktrace to target MEP 2001 with the sequence number 1101-43361.

MAC Address Source MAC address in the LTR messages.

TTL Hop count when the LTM passes the device.

Last MAC MAC address of the last-hop device the LTM passes.

Forwarded

Indicates whether the device forwards LTMs:

• Yes—The current device forwards LTMs.

• No—The current device does not forward LTMs.

Relay Action

Indicates whether the forwarding device found the destination MAC

address in its MAC address table.

When the standard version (IEEE 802.1ag) of CFD is used:

• Hit—The current device is the destination device.

• FDB—The forwarding device found the destination MAC address.

• MPDB—The destination MAC address is not found, or the destination

MAC address is found in the MEP or MIP database.

When the IEEE 802.1ag draft5.2 version or the IEEE 802.1ag draft 5.2

interim version of CFD is used:

• Found—The forwarding device found the destination MAC address.

• Unknown—The forwarding device failed to find the destination MAC

address.

• None—It is a MEP that responded to the LTM message. A MEP does not

need to find the destination MAC address.

Related commands

cfd linktrace auto-detection

Use cfd linktrace auto-detection to enable the auto sending of linktrace messages.