PRI Fluctutation

[Vijay Patil]

Hi All,

I am facing PRI Fluctuation , beacuse of which Call are diconnected on regular intervals.

below is the error which is gettin on Router Voice Gateway

[Aman Soi]

Hi Vijay,

the snapshot shows RAI[remote alarm indication]  detected which is mainly due to Far end in your case it is TELCO.The other error is due to clocking.if possible,please post your config.

Did u get your media checked by TELCO?

regds,

aman

[Carlo Poggiarelli]

Hi Vijay.

This usually is a cabling issue from the vg PRI to the provider device.

Check with your local provider an , if you can, the cable connecting PRI interface.

Please also post a show controller E1

Thanks

Regards

Carlo

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"The more you help the more you learn"

[Vijay Patil]

E004010102CRR#sh controllers e1

E1 0/0/0 is up.

  Applique type is Channelized E1 - balanced

  No alarms detected.

  alarm-trigger is not set

  Version info FPGA Rev: 08121917, FPGA Type: PRK1

  Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.

  International Bit: 1, National Bits: 11111

  Data in current interval (887 seconds elapsed):

     0 Line Code Violations, 10 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     259 Errored Secs, 21 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

  Total Data (last 24 hours)

     0 Line Code Violations, 2432 Path Code Violations,

     8 Slip Secs, 1418 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,

     7156 Errored Secs, 916 Bursty Err Secs, 0 Severely Err Secs, 1450 Unavail Secs

[islam.kamal]

Hi Vijay

You have to check with your Teleco , that means the other equipment on the other side disconnected or out of service and please check the isdn switch-type may be is mismatched with your SP. Please check the below link which shows your problem :-

http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70f6.shtml

Thank you

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[Aman Soi]

Hi Vijay,

To troubleshoot further, u can try changing CRC parameter under controller config.

Further, u can also give loopback local from controller port to check your cable and E1 port .

loopback remote from controller E1 port to check the media end to end by involving TELCO.

regds,

aman

[islam.kamal]

Hi Amanso

Great idea for disable also CRC4 , but i think this should be done from Teleco side.

Hi Vijay

you have all possible solutions now, please start with contacting your Teleco.

Thank you

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