[j-nsp] HS link FIFO underflows

[moki]

Hello
As advised Derek we shut the STM4 sonet and the errors stopped . (This was
the workaround).
To solve this issue the router needs to be upgaded

On Tue, Jul 17, 2012 at 8:14 PM, Derek Deviny <ddeviny at juniper.net> wrote:

>  Yeah, I think disable one interface will help. Ideally you can upgrade.
>
> -------- Original Message --------
> Subject: Re: [j-nsp] HS link FIFO underflows
> From: moki <vomoki at gmail.com> <vomoki at gmail.com>
> To: Derek Deviny <ddeviny at juniper.net> <ddeviny at juniper.net>
> Date: Tue Jul 17 2012 10:34:07 GMT-0600 (Mountain Daylight Time)
>
> Many thanks , for the reply
> I can see that the PR solution is moving the pic to other FPC.
> If i will disable the sonet interface which is  sliced to 4 stm4s .Do you
> think it will solve the problem ?
>
>
> On Tue, Jul 17, 2012 at 4:49 PM, Derek Deviny <ddeviny at juniper.net> wrote:
>
>>  This is a bug I found after a lot of hard work. It's PR/687905:
>> https://www.juniper.net/prsearch/viewpr.jsp?txtPrnumber=687905
>>
>> It's fixed in 10.4R11 and 11.4R4- I suggest going with 11.4.
>> Or 12.1R3 or 12.2R1 if you're feeling bleeding-edge.
>>
>>
>> -------- Original Message --------
>> Subject: [j-nsp] HS link FIFO underflows
>> From: moki <vomoki at gmail.com> <vomoki at gmail.com>
>> To: juniper-nsp at puck.nether.net <juniper-nsp at puck.nether.net><juniper-nsp at puck.nether.net>
>> Date: Tue Jul 17 2012 04:34:18 GMT-0600 (Mountain Daylight Time)
>>
>> Hello
>> I've upgraded MX-480 to version 11.2R5.4
>> After upgrade i noticed there are error on one of the sonet interface HS
>> link FIFO underflows: 252
>> As i understand it indicates hardware errors, but there is also possibility
>> that there might be software problem - because those error didn't appear
>> before the upgrade .
>> I want to make sure that the problem isnt affected because of the software .
>> Please advice if you know some relevant commands which related to this
>> issue , or some actions which can be taken to eliminate the software
>> problem .
>> If some had same issue what did you do to solve the problem
>> Here is some output of the FPC
>> FPC 2            REV 15   750-024387   JW9932            MX FPC Type 2
>>   CPU            REV 03   710-022351   KF1835            DPC PMB
>>   PIC 0          REV 08   750-014638   BBAM9654          1x STM-16-4-1 SFP
>>     Xcvr 0       REV 01   740-011786   718002D00112      SFP-IR
>>   PIC 1          REV 08   750-014638   XK9253            1x STM-16-4-1 SFP
>>     Xcvr 0       REV 01   740-011785   PDE1LB7           SFP-SR
>> The problem is with so-2/0/0 , and its full stm16 ; the second sonet
>> devided to stm4 slices .
>>
>> thanks
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>>
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