Analyzing alarm through signal flow

Hello,

When handling a WDM network fault, technical personnel usually check whether physical and logical fiber connections are correct by checking the signal flow.

Please refer to the link below, hope it help "How to test the availability of E1 services"

https://forum.huawei.com/enterprise/en/how-to-test-the-availability-of-e1-services/thread/639063-875

Thanks

Dear friend!

Description of Service Signal Flow Analysis:

Features

lt is a common method to check along the signal flow station by station to

locate a faultin a WDM System.

Steps

1. Separate the whole WDM network into many OMS parts, choose the fault OMS

from them.

2. Determine the fault direction in fault OMS: bi-direction or uni-direction

3. Locate faults from diverse Service Signal flow station by station according to alarms and other fault information.

The key point of Service Signal Flow Analysis is that; the maintainer should familiar with not only the signal flow of one single station which he is maintaining but also the service allocations in the whole network. the maintainer should at least know about the service signal flow of an OMS.

Firstly maintainer should separate the whole network into many OMS parts, and determine the fault OMS of them.

Secondly, when the fault OMs is located, by analysis on service signal flow station after station, troubles can be located very conveniently.

Thnak you!

Hi there!

Analyze the service signal flow and locate faults node by node based on the service signal flow. This is a common method for locating faults in a WDM system. By analyzing the service signal flow, you can quickly locate the fault point.