Configure Layer 2 IP Traceroute

Use this procedure to configure Layer 2 IP traceroute.

Before you begin

  • On the source and destination nodes, you must configure a CFM MD, MA, and MEP, and assign a nodal MEP to the B-VLAN

  • If you want to run a Layer 2 IP Traceroute for a specific VRF, you must use EDM in the specific VRF context first. For more information, see the procedure for selecting and launching a VRF context view in Select and Launch a VRF Context View.

Procedure

  1. In the navigation pane, expand Configuration > Edit > Diagnostics.
  2. Click L2Ping/L2Trace Route
  3. Click the L2 IP Traceroute tab.
  4. To add a new entry, click Insert, specify the destination IP address and, optionally, the TTL value, and then click Insert.
  5. To start the Layer 2 IP traceroute, highlight an entry, and then click the Start button.
  6. To update the L2 IP traceroute, click the Refresh button.
  7. To stop the Layer 2 IP traceroute, click the Stop button.

L2 IP Traceroute Field Descriptions

Use the data in the following table to use the L2 IP Traceroute tab.

Name

Description

IpAddrType

Specifies the address type of destination IP address (only IPv4 is supported).

IPAddr

Specifies the destination IP Address.

VrfId

Specifies the VRF ID.

VrfName

Specifies the name of the virtual router.

Ttl

Specifies the number of hops remaining to this L2Trace. This value is decremented by 1 by each Bridge that handles the L2Trace. The decremented value is returned in the L2Trace. If 0 on output, the L2Trace is not transmitted to the next hop. The default value is 64

Status

Indicates the status of the transmit loopback service:

  • ready: the service is available.

  • transmit: the service is transmitting, or about to transmit, the L2Trace messages.

  • abort: the service is aborted or about to abort the L2Trace messages.

This field is also used to avoid concurrency or race condition problems that could occur if two or more management entities try to use the service at the same time. The default is ready.

ResultOk

Indicates the result of the operation:

  • true: the Trace Messages will be or have been sent.

  • false. the Trace Messages will not be sent

The default is true.

PathsFound

Specifies the number of paths found to execute the L2trace. The default is 0.
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