[cisco-voip] slips on NIM-8MFT-T1/E1

[Ryan Huff]

Although it appears you have it enabled, not having the network-clock participation set correctly will render the network-clock synchronization ineffective for the NIM with the port your trying to clock source on.

http://www.cisco.com/c/en/us/support/docs/routers/4000-series-integrated-services-routers/118792-config-isr-00.html

Sent from my iPad

> On Oct 11, 2015, at 1:18 AM, Jonathan Charles <jonvoip at gmail.com> wrote:
> 
> I put the primary in and set the input source... still getting slips...
> 
> 
> Jonathan
> 
>> On Sat, Oct 10, 2015 at 11:08 PM, Ryan Huff <ryanhuff at outlook.com> wrote:
>> This is how I've setup clocking on 4th gens before, and it always seems to use the line as the clock source when I have done it this way (network clock synchronization is disabled by default, so you may double check that it is enabled). 
>> 
>> Using your slot reference ...
>> 
>> rtr(config)# network-clock participation 0/1
>> rtr(config)# network-clock synchronization automatic
>> rtr(config)# controller t1 0/1/0
>> rtr(config)# clock source line primary
>> rtr(config)# network-clock input-source 1 controller t1 0/1/0
>> 
>> I have also found this guide to be useful: http://www.cisco.com/c/en/us/td/docs/routers/access/4400/feature/guide/isr4400netclock.html#pgfId-1023586
>> 
>> Thanks,
>> 
>> Ryan
>> 
>> Sent from my iPad
>> 
>>> On Oct 10, 2015, at 10:49 PM, Jonathan Charles <jonvoip at gmail.com> wrote:
>>> 
>>> ILVOIPISR01(config)#network-clock input-source 1 controller T1 0/1/0 
>>> % The clock source should be "line"
>>> 
>>> They are all set to line... however:
>> 
>>> 
>>> Why does it say internal:
>>> 
>>> ILNOVOIPISR01#show network-clocks synchronization 
>>> Symbols:     En - Enable, Dis - Disable, Adis - Admin Disable 
>>>              NA - Not Applicable 
>>>              *  - Synchronization source selected 
>>>              #  - Synchronization source force selected 
>>>              &  - Synchronization source manually switched 
>>> 
>>> Automatic selection process : Enable
>>> Equipment Clock : 2048 (EEC-Option1)
>>> Clock Mode : QL-Disable
>>> ESMC : Disabled
>>> SSM Option : 1 
>>> T0 : Internal 
>>> Hold-off (global) : 300 ms
>>> Wait-to-restore (global) : 300 sec
>>> Tsm Delay : 180 ms
>>> Revertive : No
>>> 
>>> Nominated Interfaces
>>> 
>>>  Interface            SigType     Mode/QL      Prio  QL_IN  ESMC Tx  ESMC Rx
>>> *Internal             NA          NA/Dis       251   QL-SEC    NA        NA       
>>> ILNOVOIPISR01#
>>> 
>>> 
>>> 
>>> 
>>> Jonathan
>>> 
>>>> On Sat, Oct 10, 2015 at 9:11 PM, NateCCIE . <nateccie at gmail.com> wrote:
>>>> Cisco changed everything again.  If you remember network-clock select with ISR G1, or the AIM-VOICE-30… When those first came out clocks were slipping all over the place with clock source line, because that wasn’t enough.
>>>> 
>>>>  
>>>> 
>>>> I am sorry if I am just behind everyone else and you’ve already done T1s on an ISR4k
>>>> 
>>>>  
>>>> 
>>>> http://www.cisco.com/c/en/us/support/docs/routers/4000-series-integrated-services-routers/118792-config-isr-00.html
>>>> 
>>>>  
>>>> 
>>>> I think this is right:
>>>> 
>>>>  
>>>> 
>>>> controller T1 0/1/0
>>>> 
>>>> framing esf
>>>> 
>>>> clock source line primary
>>>> 
>>>> linecode b8zs
>>>> 
>>>> cablelength long 0db
>>>> 
>>>> pri-group timeslots 1-24
>>>> 
>>>> !
>>>> 
>>>> controller T1 0/1/1
>>>> 
>>>> framing esf
>>>> 
>>>> clock source line secondary
>>>> 
>>>> linecode b8zs
>>>> 
>>>> cablelength long 0db
>>>> 
>>>> pri-group timeslots 1-24
>>>> 
>>>>  
>>>> 
>>>> network-clock synchronization automatic
>>>> 
>>>> network-clock input-source 1 controller T1 0/1/0
>>>> 
>>>> network-clock input-source 2 controller T1 0/1/1
>>>> 
>>>> 
>>>> 
>>>> Thanks,
>>>> 
>>>> -Nate
>>>> 
>>>> 
>>>>> On Sat, Oct 10, 2015 at 4:01 PM, Jonathan Charles <jonvoip at gmail.com> wrote:
>>>>> We have two NIM-8MFT-T1/E1s in a router for PRI termination...
>>>>> 
>>>>> On one of the 8-port cards, we have 7 PRIs in the same trunk group, on the other, 3 PRIs in the same trunk group.
>>>>> 
>>>>> We are seeing slips on all T1s.
>>>>> 
>>>>> This is a Ciisco 4351.
>>>>> 
>>>>> We have network-clock synchronization automatic, and I cannot find any better config....
>>>>> 
>>>>> All T1s are configured as B8ZS, ESF, Clock Source Line...
>>>>> 
>>>>> 
>>>>> controller T1 0/1/0
>>>>>  framing esf
>>>>>  linecode b8zs
>>>>>  cablelength long 0db
>>>>>  pri-group timeslots 1-24
>>>>> !
>>>>> 
>>>>> 
>>>>> Any ideas?
>>>>> 
>>>>> 
>>>>> 
>>>>> Jonathan
>>>>> 
>>>>> _______________________________________________
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>>>>> cisco-voip at puck.nether.net
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>>> 
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> 
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