[j-nsp] Debugging SONET (OC-3) errors

[Clinton Work]

If the errors are occurring frequently enough (once an hour), you could 
ask for a hard loopback on one end and ask the service provider to run a 
bert test from the other side towards the hard loopback.  The bert will 
see the path errors in the middle of the circuit which will prove the 
problem to the service provider. The downside being that your OC3c will 
be out of service for an extended period.  I had to resort to this 
method once on a protected OC48c where the hard loopbacks were 
progressively moved towards the middle of the facility where the fault 
was found. 

Clinton. 

Chris Adams wrote:
> I have an OC-3 (POS running PPP) between two POPs (an M10i at each end)
> getting errors, and this is the first time I've had to debug errors on a
> SONET link.
>
> I am seeing BIP-B3 and REI-P incrementing in spurts on the Z end (e.g.
> 99 BIP-B3 and 45 REI-P, both showing 2 seconds), as well as ES-P and
> ES-PFE matching the seconds (2 in since I cleared the counters).  No
> other error counters are incrementing (no section or line errors at
> all).  I have seen some errors at the A end as well, but not as many or
> as often.
>
>   


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Clinton Work
Airdrie, AB