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router interface intermittent down

Latest reply: Oct 27, 2018 07:27:46 1947 10 11 0 0

Dear friend! 

Today, I'd like to share with you a little knowledge: How to prevent router interface intermittent down.


Customer side router /switch interface connect with transmission LDX card, from switch side found lot of interfaces up/down log even interface up /down happen at same seconds.

From the transmission side found a lot of error code, so from u2000 need configure the WDM OTN SM  parameter to specify the error condition to trigger the SNCP switch.

 

REMARK: this parameter is not a fixed value, need test with router side check if propper.

 

DEG Monitoring Time

1 to 10

  • When the DEG Detection Time Window (ms) is set to 10 ms, Default: 2

  • When the DEG Detection Time Window (ms) is set to 100 ms, Default: 2

  • When the DEG Detection Time Window (ms) is set to 1000 ms, Default: 7

The DEG Monitoring Time parameter indicates the number of detection period. The OTUk_DEG alarm is reported when the number of DEG errors continuously exceeds the threshold during the period specified by DEG Monitoring Time in every DEG Detection Time Window(ms).

Set this parameter according to the actual requirements and the requirements on the quality of the received signals. The requirement on the signal QoS varies inversely with the value of this parameter.

This parameter is valid only when the BIP8 Detection Mode parameter is set to Bursty.

 

DEG Detection Time Window (ms)

10, 100, 1000

Default: 1000

Specifies the unit of DEG detection period for detecting DEG alarms. When SD quick switching of protection is required, set DEG Detection Time Window (ms) to 10 ms. Users do not need to manually configure DEG Monitoring Time because the NE software can automatically configure DEG Monitoring Time to 2.

Most of the boards support fast SD protection switching except the following boards: TN11LDMD, TN11LDMS, TN11LEM24, TN11LOG, TN11LOM, TN11LSXR, TN11LWX2, TN11TMX, TN12LDM, TN12LQMD, TN12LQMS, TN12LSX, TN12LWXS, TN13LQM, TN52TOG, TN53TSXL, TN54NPO2, TN11BMD4, TN11LEX4, TN11LSQ, TN11LSQR, TN12LSXL, TN12LSXLR, TN52NS3, TN52TDX, TN52TQX boards.
NOTE:
The TN52NS2, TN52ND2 or TN52NQ2 board supports fast SD protection switching only for ODU2 signals.
 


Thanks!

This post was last edited by Torrent at 2018-10-31 07:22.

After the specified interface view is displayed, you can set attributes for the interface.

Precautions

  • The interface command can display only the view of an existing physical interface and cannot create a physical interface.

  • The interface command can create a logical interface and display the view of the logical interface.

  • After an RU goes online, the central AP generates a virtual Ethernet interface. If you cannot enter the Ethernet interface view, run the wired-port-profile (WLAN view)command to enter the AP wired port profile view to configure the Ethernet interface.

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This post was last edited by yjhd at 2018-10-31 07:43. The interface command can display only the view of an existing physical interface and cannot create a physical interface。 good
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This post was last edited by Finn92 at 2018-10-31 06:45.

I am very interested for this sharing , which is very helpful to our daily work. especially below information :

The DEG Monitoring Time parameter indicates the number of detection period. The OTUk_DEG alarm is reported when the number of DEG errors continuously exceeds the threshold during the period specified by DEG Monitoring Time in every DEG Detection Time Window(ms).

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Thanks for you share about this which is very useful for my daily work.
And now i can easy to check the logs if i face any issue about this.before this i aways do not know how to deal with them,and wasted a lot of time to serch this.Thanks agin for you selfless Sharing, Hope you can aways work like this.:):):)
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Thanks for your sharing , good example , this part we can discussing detail .
Cusotmer side router /switch interface connect with transmission LDX card , from switch side found lot of interface up/down log even interface up /down happen at same seconds .

From transmission side found lot of error code , so from u2000 need configure wdm OTN SM parameter to specify the error condition to tragger SNCP switch .
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This post was last edited by SupperRobin at 2018-10-31 06:45. Association between EFM and an interface in the OAM management view is bidirectional:
    After EFM OAM detects a fault, the OAM module notifies the interface associated with EFM OAM of the fault. Then the interface goes Down. After EFM detects that the fault is rectified, the OAM module notifies the interface associated with EFM OAM. Then the interface goes Up.
    After the interface goes Down, the OAM module notifies EFM OAM of the interface Down event.
    A physical interface associated with EFM cannot be the one that EFM monitors. If EFM is associated with a physical interface that it monitors, the link is locked
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This post was last edited by No.9527 at 2018-10-31 06:32. This method applies to the cloud managed networks on which devices cannot communicate with the Huawei device registration query center. The cloud management platforms of these networks are often built by enterprises.
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This post was last edited by littlestone at 2018-10-31 06:09.

CPU usage is the percentage of time the CPU spends in executing codes against the total time period specified. CPU usage is an important performance indicator of a device.

To check whether CPU usage is high, run the display cpu

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Thanks for your sharing ,which is a wonderful guidance, i really interested in this article, which is useful for us and improvement product technology and become to a professional engineer .
I hope that you can insist post new kownlege and skills, i will alawys keep an eye on your sharing.
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