Interfac GigabitEthernet 2/9/1 :: Received Pause Frames Exceeded Threshold

At time something is not that big thing but live network is live which makes you so careful and conscious that you take care of each and every alarms of Router (NE40E). I saw the above alarms on my NE40E, when I try to troubleshoot so it was not that big problem. At time due to this may be some data services lost on that interface. You can get this due to some reasons which include “The receiving rate of pause frames exceeded the threshold” or it is receiving for continuous time.

Solution:

You just need to check the rate on the interface; if you see this alarm what you need is to reduce the traffic rate from neighbor node. In my case when I notice this so no high rate was noticed on the interface, it just appear for a while and then disappear.

I hope this will be informative for you.

Power Sensor of Board 1220 Failed :: Huawei NE40E

Whenever there is problem with the physical entity or it goes failed so the board cannot work normal and it may results in services interruption. You will face such problem when the power-on sensor board is faulty.

I will talk about the troubleshooting process, how we can find out, where & what is the problem, here we go:

First Step, Login in to your NE40E and issue the following command to check whether “MonitorBus Version” is older than 19 or the softeware version is older than 3.6

display version

If it so then use the following commands to upgrade both

upgrade lpu 1 startup monitorbus // to upgrade s/w version
upgrade lpu by-testbus 1 startup mbus_epld // to upgrade the logical version

Now check the problem is resolve or not. If it is not resolve then perform the following task where we will turn-off and turn-on the power modules to check the master and slave behavior:

power off slot 1 //Power off the board
power on slot 1 //Power on the board

If you see that the problem is resolved means all the trap alarms are cleared in NE40E so this indicates that there is problem with the power supply which needs to be replaced but if still the trap alarms are there in NE40E then you have to send some detail information from NE40E like “display trapbuffer”, “terminal monitor” and “terminal trapping” which will be studied in detail to find the root cause for the problem.

I Hope this will be informative for you.

Huawei Basic Commands

Hi Everyone !

I don't have time to talk about the basic commands of huawei, i will talk about the details stuff of it. If one is use to with cisco so he/she will not face any problem in understanding Huawei. I got this site with having the basic commands for huawei. If you want to study so look at Mariusz Stola

I Hope this wil be informative for you !

Cheers :)

The SERDES Module on Subcard NP-3 1 is Failed

I got this problem in our network on one of our NE40E. Before going to the troubleshooting section, I just need to go through the impact of th above problem on a system. Actually we have three groups of SERDES on NE40E i.e. 0,1 and 2 on the LPU. These SERDES are plot on sub-card 0 and 1. If we have problem on SERDES 0 it will not effet the services on SERDES 1 and like wise.

The problem cause can be identifed by checking the clock of SERDES module. The above problem can result because of:

1. Sub-card-1 not prooperly connected to LPU
2. Sub-card 1 is faulty
3. The Port is not configured correctly
4. The connector between the Sub-card and LPU is faulty
5. The optical module is faulty

Solution

1. We have to check wheather the sub-card ETH_xyz_abc_CARD is registere by using the following command.

display device pic-status

2. If it is registered, then we have to replace our optical module.

3. If Optical module is working normal then plug out from the existing sub-card and plug-in in another card. For Example from Sub-Card 0 to Sub-Card 1.

4. Now again verify by using the above command and collect the trap information.

display trapbuffer
terminal monitor

I hope this will be informative for you.