Re: POS Issues

Thanks, yeah I've reached that article after your email... thank you again
:)

On Thu, Aug 11, 2011 at 1:30 PM, Christian Hunter <stasis416_at_gmail.com>wrote:

> 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 - 13:52:31 ART