Huawei S6700 24 EI Switch sudden loss of connectivity at frequent intervals

Created: Nov 13, 2019 15:49:02Latest reply: Nov 25, 2019 01:48:42 149 8 0 0
  Rewarded Hi-coins: 0 (problem resolved)

Hi,


One of my siwtch S6700 24 SI which is connected to another same model switch via 10GiG Trunk Link is lossing connectivity at certain times. Symtops observed is Request time out to Switch Management Port IP or Switch IP. All links connected to the switch goes down. But no issue of port unplug or switch reboot.

The issue started suddenly from 4th Nov. No major changes done. No logs during the abnormal condition too.


What could cause the trouble? Any guide?


Thanks,

Srijit B

  • x
  • convention:

Featured Answers
LuizPuppin
MVE Created Nov 13, 2019 17:30:07 Helpful(1) Helpful(1)

Without logs or alarms it is difficult to identify somethink. If you have an active contract, you can open a ticket to analyze this issue. But the first action that I do is upgrade version to last stable version of this equipment. If is a know issue, this action will solve without any other actions.
  • x
  • convention:

I%20have%2020%20years%20working%20with%20telecom%20market.%20On%20all%20this%20time%20I%20worked%20always%20in%20great%20projects.%20The%20biggest%20was%20the%202014%20World%20Cup%20Command%20and%20Control%20Centre%2C%20where%20I%20was%20the%20Soluction%20Architect%20and%20Implementation%20Manager%20of%20Network%20and%20security%20Solution.%0AI%20work%20with%20Huawei%20s%20products%20to%20ISP%20Market%20since%202015%20and%20in%202017%20started%20to%20present%20trainnings%20customized%20to%20this%20market%2C%20focused%20in%20BGP%20and%20MPLS%20solution.%20I%20had%20more%20than%20400%20students%20and%20more%20than%20100%20ISP%20on%20my%20classes%20on%20last%2018%20mounths.
All Answers
LuizPuppin
LuizPuppin MVE Created Nov 13, 2019 17:30:07 Helpful(1) Helpful(1)

Without logs or alarms it is difficult to identify somethink. If you have an active contract, you can open a ticket to analyze this issue. But the first action that I do is upgrade version to last stable version of this equipment. If is a know issue, this action will solve without any other actions.
  • x
  • convention:

I%20have%2020%20years%20working%20with%20telecom%20market.%20On%20all%20this%20time%20I%20worked%20always%20in%20great%20projects.%20The%20biggest%20was%20the%202014%20World%20Cup%20Command%20and%20Control%20Centre%2C%20where%20I%20was%20the%20Soluction%20Architect%20and%20Implementation%20Manager%20of%20Network%20and%20security%20Solution.%0AI%20work%20with%20Huawei%20s%20products%20to%20ISP%20Market%20since%202015%20and%20in%202017%20started%20to%20present%20trainnings%20customized%20to%20this%20market%2C%20focused%20in%20BGP%20and%20MPLS%20solution.%20I%20had%20more%20than%20400%20students%20and%20more%20than%20100%20ISP%20on%20my%20classes%20on%20last%2018%20mounths.
Srijit
Srijit Created Nov 13, 2019 17:37:58 Helpful(0) Helpful(0)

Unfortunately there is no active contract.
Software is upto date. But patch is not recent. Shall /i update the patch too?
  • x
  • convention:

LuizPuppin
LuizPuppin MVE Created Nov 13, 2019 19:39:17 Helpful(0) Helpful(0)

If you don´t have contract. I think that is the only thing you can do. Unfortunately...
  • x
  • convention:

I%20have%2020%20years%20working%20with%20telecom%20market.%20On%20all%20this%20time%20I%20worked%20always%20in%20great%20projects.%20The%20biggest%20was%20the%202014%20World%20Cup%20Command%20and%20Control%20Centre%2C%20where%20I%20was%20the%20Soluction%20Architect%20and%20Implementation%20Manager%20of%20Network%20and%20security%20Solution.%0AI%20work%20with%20Huawei%20s%20products%20to%20ISP%20Market%20since%202015%20and%20in%202017%20started%20to%20present%20trainnings%20customized%20to%20this%20market%2C%20focused%20in%20BGP%20and%20MPLS%20solution.%20I%20had%20more%20than%20400%20students%20and%20more%20than%20100%20ISP%20on%20my%20classes%20on%20last%2018%20mounths.
chenhui
chenhui Admin Created Nov 14, 2019 00:38:29 Helpful(0) Helpful(0)

@Srijit hello, does high cpu usage occurred when the switch out of managing?
  • x
  • convention:

Srijit
Srijit Created Nov 14, 2019 09:03:40
I added the CPU Monitoring in our NMS 12 hours back. The incident occurred once today. But I could not find any abnormal CPU spikes. Usage is around 11-13%. During the incident lost connectivity to switch.  
chenhui
chenhui Reply Srijit  Created Nov 22, 2019 01:08:58
well, no error log, no abnormal phenomenon, it's kindly advised to contact the TAC to raise the problem, cause some diagnostic information need to be collected, and these information might involve private parts, so it's better to contact the TAC to do that job.  
Srijit
Srijit Created Nov 23, 2019 17:32:01 Helpful(0) Helpful(0)

Found out there was TC Notification and thus TC via MSTP received from the branch switch. Had to enable BPDU Filter and Edge Port as of now. But these logs were not there in the log table? Need to enable them manually?
  • x
  • convention:

Popeye_Wang
Popeye_Wang Admin Created Nov 25, 2019 01:48:42 Helpful(0) Helpful(0)

Posted by Srijit at 2019-11-23 17:32 Found out there was TC Notification and thus TC via MSTP received from the branch switch. Had to ena ...

Hi,

By default, only the logs of the level 0~4 are recorded in the log buffer. But the command operation log level is informational(6), which will not be recorded in the log buffer.

http://support.huawei.com/hedex/hdx.do?docid=EDOC1000135317&id=info-center_source_channel&lang=en


mstpinfo


You can enable the log buffer to record the MSTP logs of level 6.

[Huawei] info-center source MSTP channel logbuffer log level informational state on

  • x
  • convention:

Comment

Reply
You need to log in to reply to the post Login | Register

Notice Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following:
  • Politically sensitive content
  • Content concerning pornography, gambling, and drug abuse
  • Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy
Do not share your account and password with others. All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " Privacy."
If the attachment button is not available, update the Adobe Flash Player to the latest version!
Login and enjoy all the member benefits

Login and enjoy all the member benefits

Login