Sonet alarm problem on Cisco GSR

Unanswered Question

Hi,

I'm Peter working in an ISP network operations. I have problems understanding this alarm in Cisco GSR. July 15 04:44:55 EDT: %SONET-4-ALARM: POS5/0/0: B3 BER exceeds threshold, TC alarm declared. How do I troubleshoot this problem? The interface is up but the line protocol went down because of it. What we did was we requested a loop from our international peering facing our side and we were able to see the loop. After releasing the loop and normalizing the line, line protocol went up and traffic started to flow. What's the first thing to do in problems like this?

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
balajitvk Sat, 07/29/2006 - 20:01
User Badges:
  • Silver, 250 points or more

Hi pter,


When the number of BIP errors crosses a threshold that you can configure, the router reports log messages similar to this. But there is link descrbing how to configure threshold and what to do when u find this problem, just go thro. this,


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


Hope this will clarify ur doubt,


Rate if it does,


Rgs

fcmartinez Mon, 08/14/2006 - 06:51
User Badges:

Actions

This Discussion