linktrace

Trigger a linktrace. The linktrace message is often compared to traceroute. A MEP transmits the Linktrace Message packet to a maintenance endpoint with intermediate points responding to indicate the path of the traffic within a domain for the purpose of fault isolation. The packet specifies the target MAC address of a MP, which is the SPBM system ID or the virtual SMLT MAC. MPs on the path to the target address respond with an LTR.

Syntax

linktrace WORD<0–22> WORD<0–22> <1–8191> <0x00:0x00:0x00:0x00:0x00:0x00> [detail] [priority <0–7>] [source-mode <nodal|noVlanMac|smltVirtual>] [ttl-value <1–255>]

Command Parameters

<0-22 | 1-22 >: Specifies the Maintenance domain name. The range depends on the hardware platform.
<0x00:0x00:0x00:0x00:0x00:0x00>: Specifies the remote MAC address to reach the MEP/MIP.
<1-8191>: Specifies the MEP ID.
detail: Displays linktrace result details.
priority <0-7>: Specifies the priority. The default is 7.
source-mode {nodal | noVlanMac|smltVirtual}: Specifies the source mode as nodal, noVlanMac, or smltVirtual. Use the smltVirtual value with B-VLANs only. Use the noVlanMac value with C-VLANs only. The default is nodal.
ttl-value <1-255>: Specifies the time-to-live (TTL) value. The default is 64.

Default

None

Command Mode

User EXEC

Usage Guidelines

The source-mode noVlanMac parameter only applies to VSP 4450 Series.