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

[Jonathan Charles]

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
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>>
>
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