Re: POS Issues

Yes, PSE = positive stuff events, NSE = negative

Consider reading:
http://www.cisco.com/application/pdf/paws/18932/nsepse_18932.pdf

On Thu, Aug 11, 2011 at 11:08 AM, Persio Pucci <persio_at_gmail.com> wrote:

> Christian,
>
> can't thank you enough on this. Last question: on the other side, I have
> PSE increasing. Same thing?
>
>
> On Thu, Aug 11, 2011 at 11:23 AM, Christian Hunter <stasis416_at_gmail.com>wrote:
>
>>
>>
>> You have a lot of NSE there. This is typically due to synchronization
>> problems (timing) on a link due to incorrect clock or degraded signal.
>> (Might want to check light levels on either end, and db pad if needed, could
>> be lack of attenuation). Have your provider check clocking, etc. The rate of
>> NSE should not increase with load. Fiber might need cleaning.
>>
>> Cisco interfaces only report NSE based on what they see, the interface
>> itself does not generate this.
>>
>> There is an acceptable level of NSE's per day but this depends on your
>> clock stratum. Your provider can explain this to you.
>>
>> BIP3 errors are path level. The B3 byte carries the path parity. So are
>> NSE errors, PATH.
>>
>> Tell your telco provider your seeing BIP(B3) and NSE from your router that
>> holds POS4/1/0
>> and that your clock source is LINE - give them the circuit ID your seeing
>> those errors from.
>>
>> Good luck!
>> Christian Hunter
>>
>>
>>
>>
>>
>> On Thu, Aug 11, 2011 at 9:57 AM, Persio Pucci <persio_at_gmail.com> wrote:
>>
>>> Sure, but I have cleared the counters after the last event, so I believe
>>> that may not show any current issues... (hostname and IPs were changed to
>>> protect the innocent)
>>>
>>> ROUTER#sh controllers pos 4/1/0
>>> POS4/1/0
>>> SECTION
>>> LOF = 0 LOS = 0 BIP(B1) = 0
>>> LINE
>>> AIS = 0 RDI = 0 FEBE = 0 BIP(B2) = 0
>>> PATH
>>> AIS = 0 RDI = 0 FEBE = 0 BIP(B3) = 0
>>> PLM = 0 UNEQ = 0 TIM = 0 TIU = 0
>>> LOP = 0 NEWPTR = 0 PSE = 0 NSE = 32246
>>>
>>> Active Defects: None
>>> Active Alarms: None
>>> Alarm reporting enabled for: SF SLOS SLOF B1-TCA B2-TCA PLOP B3-TCA
>>>
>>> Framing: SDH
>>> APS
>>> working (active)
>>> COAPS = 0 PSBF = 0
>>> State: PSBF_state = False
>>> Rx(K1/K2): 00/00 Tx(K1/K2): 00/00
>>> Rx Synchronization Status S1 = 0B
>>> S1S0 = 02, C2 = 16
>>> Remote aps status (none); Reflected local aps status (none)
>>> CLOCK RECOVERY
>>> RDOOL = 0
>>> State: RDOOL_state = False
>>> PATH TRACE BUFFER: STABLE
>>> Remote hostname : REMOTE
>>> Remote interface: POS2/2/0
>>> Remote IP addr : X.X.X.X
>>> Remote Rx(K1/K2): 00/00 Tx(K1/K2): 00/00
>>>
>>> BER thresholds: SF = 10e-3 SD = 10e-6
>>> TCA thresholds: B1 = 10e-6 B2 = 10e-6 B3 = 10e-6
>>>
>>> Clock source: line
>>>
>>> ROUTER#
>>>
>>> On Thu, Aug 11, 2011 at 10:46 AM, Christian Hunter <stasis416_at_gmail.com>wrote:
>>>
>>>> Can you post a sh controller pos x/x/x
>>>> for both of the interfaces on either side?
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Aug 11, 2011 at 9:36 AM, Persio Pucci <persio_at_gmail.com> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> anybody with good experience with POS/SDH and some spare time? :)
>>>>>
>>>>> I am getting some B3 errors on a OC12 circuit I have. The (not) funny
>>>>> thing
>>>>> is that when I get the B3 errors, I have input errors and CRC errors
>>>>> incremented ON BOTH SIDES of the circuit.
>>>>>
>>>>> Is this an issue on the SDH transport? Cause I've been researching
>>>>> about it
>>>>> and Cisco literature says B3 are path-level errors and most likely to
>>>>> be
>>>>> caused by some router interface. If it is a router issue, what can I do
>>>>> to
>>>>> resolve it?
>>>>>
>>>>> Any thoughts?
>>>>>
>>>>>
>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>
>>>>> _______________________________________________________________________
>>>>> Subscription information may be found at:
>>>>> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Thu Aug 11 2011 - 12:30:05 ART