Troubleshooting Guide

Viewing Layer 2 tracetree results
Use this procedure to view Layer 2 Tracetree results. The Layer 2 Tracetree command is a
proprietary command that allows a user to trigger a multicast LTM message by specifying the B-
VLAN and I-SID. This command allows the user to view a multicast tree on the SPBM B-VLAN from
the source node to the destination nodes for a particular I-SID.
Note:
In the current release, troubleshooting using ping and traceroute (including Layer 2 ping and
Layer 2 traceroute) is not supported on EDM. For more information, see Release Notes for VSP
Operating System Software, NN47227-401. As an alternative, use the ACLI.
Procedure
1. In the navigation tree, expand the following folders: Configuration > Edit > Diagnostics.
2. Click L2Ping/L2Trace Route.
3. Click the L2 Traceroute/TraceTree tab.
4. In the IsTraceTree field double-click and select true for EDM to perform Tracetree on the
multicast tree.
5. Click Apply.
6. Click the Refresh button to update the results.
7. To view the tracetree results, highlight an entry, and then click Result.
L2 Traceroute/Tracetree Result field descriptions
Use the data in the following table to use the L2 Traceroute/Tracetree Result tab.
Name
Description
VlanId A value that uniquely identifies the Backbone VLAN
(B-VLAN).
SeqNumber The transaction identifier/sequence number returned
by a previous transmit linktrace message command,
that indicates which response of the L2Tracetree is
going to be returned. The default is 0.
Hop The number of hops away from L2Tracetree initiator.
ReceiveOrder An index to distinguish among multiple L2Tracetree
responses with the same Transaction Identifier field
value. This value is assigned sequentially from 1, in
the order that the Linktrace Initiator received the
responses.
Ttl Time-to-Live (TTL) field value for a returned
L2Tracetree response.
Table continues…
CFM configuration using EDM
January 2017 Troubleshooting 213
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