Troubleshooting Guide

Name Description
SrcMac MAC address of the MP that responds to the
L2Tracetree request for this L2tractreeReply.
HostName The host name of the replying node.
LastSrcMac The MAC address of the node that forwarded the
L2Tracetree to the responding node.
LastHostName The host name of the node that forwarded the
L2Tracetree to the responding node.
Configuring Layer 2 trace multicast route on a VLAN
Use this procedure to configure the Layer 2 tracemroute on the VLAN (Layer 2). This procedure
queries the SPBM multicast module to determine the B-VLAN, I-SID, and nickname for the S and G
streams. The nickname and I-SID are used to create a multicast MAC address.
Note:
• In the current release, troubleshooting using ping and traceroute (including Layer 2 ping
and Layer 2 traceroute) are not supported in EDM. As an alternative, use the command
line interface.
• If you want to run a Layer 2 tracemroute on a VRF, make sure you are in the proper VRF
context.
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.
Procedure
1. In the navigation pane, expand the following folders: Configuration > Edit > Diagnostics
> L2Ping/L2Trace Route.
2. Click the L2MCAST Traceroute tab.
3. Click Insert to insert the L2 MCAST Traceroute.
4. Enter the SrcIpAddr.
5. Enter the GroupIpAddr.
6. Enter the ServiceType. If you want to perform a Layer 2 tracemroute on a VLAN, select
vlan. If you want to perform a Layer 2 tracemroute on a Layer 3 GRT, select vrfid.
Note:
If you want to perform a Layer 2 tracemroute on a Layer 2 or a Layer 3 VRF, review the
following procedure
Configuring Layer 2 tracemroute on a VRF on page 216.
7. In the ServiceIdfield, enter the VLAN ID.
8. Enter the Priority.
Operations and Management
January 2017 Troubleshooting 214
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