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For the network where the MD, MA, and MEP are not configured, you can implement
Gmac trace to locate the connectivity fault between two devices.
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You can implement PBB-TE MAC trace to locate the connectivity fault on the PBB-TE
tunnel.
Pre-configuration Tasks
Before implementing 802.1ag MAC trace,
No pre-configuration tasks are needed to implement Gmac trace and PBB-TE MAC trace.
Data Preparation
To locate the connectivity fault on the Ethernet, you need the following data.
No.
Data
1
(Optional) Bridge MAC address of the device on which the destination MEP resides
or ID of the destination MEP
2
(Optional) Bridge MAC address of the device on which the destination MIP resides
3
(Optional) Outbound interface of Linktrace Messages (LTMs)
4
(Optional) Timeout period for waiting for an LTR
5
(Optional) Time to Live (TTL) of LTMs
6
(Optional) VLAN to which the destination node belongs
7
(Optional) Name of the PBB-TE tunnel
(Optional) Implementing 802.1ag MAC Trace
By performing the 802.1ag MAC trace, you can detect connectivity between MEPs or between
MEPs and MIPs within an MA and locate faults.
Context
Similar to tracerout or tracert, 802.1ag MAC trace tests the path between the local device and a
destination device or locates failure points by sending test packets and receiving reply packets.
Procedure
Step 1
A device is usually configured with multiple MDs and MAs. To determine the forwarding path
for sending packets from a MEP to another MEP or a MIP in an MA or failure points, perform
either of the following operations on the router with a MEP at one end of the link to be tested.
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MA view
1.
Run:
system-view
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
8 Ethernet OAM Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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