device cannot ping through the peer device when the
ping mac
command is run to detect
connectivity of the link between the local and peer devices.
----End
4.11 Locating the Fault on the Ethernet
By sending test packets and waiting for a reply, you can test connectivity of the path between
devices and locate faults.
4.11.1 Establishing the Configuration Task
Applicable Environment
By sending test packets on the local device and checking the received response packets, you can
check the reachability of the path from the local device to the destination device and locate the
faulty node on the path. You can use different methods according to the type of the link to be
tested:
l
To locate faults on the link between MEPs or between a MEP and a MIP in the same MA
on a network where MDs, MAs, and MEPs are configured, use 802.1ag MAC trace.
l
To locate faults on the link between two devices on a network where MDs, MAs, or MEPs
are not configured, use the Gmac trace.
Pre-configuration Tasks
Before performing 802.1ag MAC trace, complete the following task:
l
Configuring Basic Ethernet CFM Functions
Data Preparation
To perform 802.1ag MAC trace, you need the following data.
No.
Data
1
(Optional) MAC address or ID of the destination MEP
2
(Optional) MAC address of the destination MIP
3
(Optional) Outbound interface of MAC trace packets
4
(Optional) Timeout interval for waiting for a response packet
5
(Optional) Maximum number of hops of trace packets
6
(Optional) VLAN that the destination node belongs to
Quidway S3700 Series Ethernet Switches
Configuration Guide - Reliability
4 Ethernet OAM Configuration
Issue 01 (2011-10-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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