[c-nsp] SONET Alarm

[Nick Hilliard]

On 18/04/2011 14:38, Righa Shake wrote:
> Am receiving the following error on my logs.
> However am unable to to get to know what it is and clear it.
>
> %SONET-4-ALARM: SIP0/0:  POS0/0/0: B3 BER exceeds threshold, TC alert
> declared.

TC means "threshold-crossing".  The alarm means that the bit error rate 
(BER) on the link has exceeded a predefined threshold.  Probably you have a 
physical error on the link and you need to get your telco to check it out.

For more details, see:

> http://www.cisco.com/en/US/tech/tk482/tk607/technologies_tech_note09186a0080094a79.shtml

Nick