01-31-2018 11:55 AM - edited 03-17-2019 12:05 PM
I am having a problem and I need help understanding something.
We have a CUCM 11.5.1 system installed on our site here. Voice Gateways are 2 ISR 4431's with NIM-4MFT-T1/E1 & NIM-2MFT-T1/E1 installed in each. 2 ports go out to DSN, 4 go out to Local, 2 go out to Long Distance, and 4 are going to the Sites old PBX that we are replacing. It is a CS1000 system.
The PBX has no trunks out to anything but our ISR's (0/1/2 & 0/1/3 on each ISR, specifically) and all calls pass through us.
My question is how does traffic flow through the ISR's to get to/from that PBX? I am having difficulty troubleshooting an issue where STE and vIPer devices on the PBX can pass voice traffic just fine, but as soon as they try to go secure, the calls fail. I am at a total loss at this point.
We put a local T1 back on the PBX, set up an access trunk, and if the secure phones make calls over that trunk the secure calls succeed. But if they try and go through the ISR's or a call comes in from the ISR, the secure calls fail.
Pulling my hair out, and I don't have much.
Rob
01-31-2018 12:57 PM
01-31-2018 02:05 PM
HaHa, yes, extremely frustrating.
When the CUCM was installed in May, the engineer created MGCP gateways for the ISR's. On those gateways, there are 2 ports on each gateway (0/1/2 & 0/1/3) that are configured as PBX lines.
Call flow to my knowledge, goes like this: an Off-net call comes in from Verizon. CUCM checks it against our DNs. If it is not one of ours, it sends the call out the PBX T1's to be handled by that system (Nortel CS1000 Rel 5.0)
On the PBX, they have it set up that if a user goes off hook and dials a DN that is not on it's own system, it sends it down one of those 4 T1's for the CUCM to handle.
I am looking at a ridiculous # of Slips on those 4 T1's and we spent all day trying to get those down to near-zero. But I don't even know if that is the real issue, or if those slips have been happening all along and something else is missing/misconfigured
01-31-2018 02:08 PM
01-31-2018 02:15 PM
Great minds think alike. Here are some parts of the run config I was putting together. Let me know if you need any more of it.
controller T1 0/1/0
framing esf
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
description DSN
!
controller T1 0/1/1
framing esf
clock source line secondary
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
description Local
!
controller T1 0/1/2
framing esf
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
description PBX
!
controller T1 0/1/3
framing esf
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
description PBX
!
controller T1 0/2/0
framing esf
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
description Long Distance
!
controller T1 0/2/1
framing esf
clock source line primary
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
description Local
!
interface Serial0/1/0:23
description DSN
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
interface Serial0/1/1:23
description LOCAL
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
interface Serial0/1/2:23
description PBX
no ip address
encapsulation hdlc
isdn switch-type primary-5ess
isdn protocol-emulate network
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
interface Serial0/1/3:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn bchan-number-order ascending
no cdp enable
!
interface Serial0/2/0:23
description LONG DISTANCE
no ip address
encapsulation hdlc
isdn switch-type primary-dms100
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
interface Serial0/2/1:23
description LOCAL
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
!
voice-port 0/1/0:23
!
voice-port 0/2/0:23
!
voice-port 0/1/1:23
!
voice-port 0/2/1:23
!
voice-port 0/1/2:23
!
voice-port 0/1/3:23
!
!
network-clock synchronization automatic
network-clock input-source 1 controller T1 0/2/1
network-clock input-source 1 controller T1 0/1/1
Here is show controller t1
T1 0/1/0 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: DSN
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (614 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 1 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/1/1 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: Local
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line Secondary.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (614 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 1 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/1/2 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: PBX
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (614 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
38 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
38 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 1 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
49 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
49 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/1/3 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: PBX
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (614 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
38 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
38 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 1 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
51 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
51 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/2/0 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: Long Distance
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (614 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 1 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/2/1 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: Local
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line Primary.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (614 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 1 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
all my controllers out to verizon are clean. Either I am missing something, or the PBX guy needs to change something. I tried to set my clocking to internal on the PBX links, but it will not allow it with a pri-group assigned.
01-31-2018 02:23 PM
01-31-2018 02:38 PM
Dang it!! I have a touch screen, and hit solved by accident. Sorry.
so I am clear, you are telling me to:
conf t
no network-clock synchronization automatic
no network-clock input-source 1 controller T1 0/2/1
no network-clock input-source 1 controller T1 0/1/1
controller t1 0/1/2
clock source network
controller t1 0/1/3
clock source network
end
clear controller all
So, the ISR-4k knows to pull clocking from the "clock source line primary/secondary" entries on controllers 0/1/1 & 0/2/1?
01-31-2018 02:46 PM
01-31-2018 03:10 PM
1. Got it. Leaving it in
2. see below output, don't seem to have those entries in either ISR
OA-2-ER1A-4431-1#sho run all | i network-c
network-clock wait-to-restore 300
network-clock hold-off 300
network-clock source quality-level - tx
network-clock source quality-level - rx
network-clock wait-to-restore 300
network-clock hold-off 300
network-clock source quality-level - tx
network-clock source quality-level - rx
no network-clock revertive
network-clock synchronization automatic
network-clock synchronization ssm option 1
network-clock synchronization input-threshold -
network-clock synchronization squelch-threshold QL-SEC
network-clock eec 1
network-clock hold-off 300 global
network-clock input-source 1 controller T1 0/2/1
network-clock input-source 1 controller T1 0/1/1
network-clock wait-to-restore 300 global
OA-2-ER1A-4431-2#sho run all | i network-c
network-clock wait-to-restore 300
network-clock hold-off 300
network-clock source quality-level - tx
network-clock source quality-level - rx
network-clock wait-to-restore 300
network-clock hold-off 300
network-clock source quality-level - tx
network-clock source quality-level - rx
no network-clock revertive
network-clock synchronization automatic
network-clock synchronization ssm option 1
network-clock synchronization input-threshold -
network-clock synchronization squelch-threshold QL-SEC
network-clock eec 1
network-clock hold-off 300 global
network-clock input-source 1 controller T1 0/2/1
network-clock input-source 1 controller T1 0/1/1
network-clock wait-to-restore 300 global
3. Done
4. The input source commands used to be pointing to my PBX that is true. But when we moved the Local Lines from the PBX to the ISRs, i changed them to the Local lines to get clocking from verizon. Do I still pull them?
5. did clear controller all, and have to go home now or the family will not let me in the door.
Thank you.
Rob
01-31-2018 03:39 PM
02-01-2018 04:50 AM
Came in this morning, this is the output on the first ISR
T1 0/1/0 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: DSN
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (147 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 54 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
2 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
2 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/1/1 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: Local
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line Secondary.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (147 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 54 15 minute intervals):
7457 Line Code Violations, 4 Path Code Violations,
1 Slip Secs, 1 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins,
1 Errored Secs, 1 Bursty Err Secs, 0 Severely Err Secs, 11 Unavail Secs
T1 0/1/2 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: PBX
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Network.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (147 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
8 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
8 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 54 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
2961 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
2961 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/1/3 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: PBX
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Network.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (147 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
8 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
8 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 54 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
2959 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
2959 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/2/0 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: Long Distance
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (158 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 54 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
T1 0/2/1 is up
Applique type is Channelized T1
Cablelength is long gain36 0db
Description: Local
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line Primary.
BER thresholds: SF = 10e-3 SD = 10e-6
Data in current interval (158 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 54 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
We are looking at nearly 3k slips per PBX interface. The odd thing to me now is the Line code violations and other errors on 0/1/1 which is one of the local lines to the Demarc(verizon)
02-01-2018 05:02 AM
Yes we are on IOS XE 16.6.2. I have found a command 'no network-clock participate slot/subslot. Says it Enable/Disables a slot from participating in network-clocking.
I ran a show network clocks synchronization:
OA-2-ER1A-4431-1#sho 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 : T1 0/2/1
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 - - -
*T1 0/2/1 NA NA/Dis 1 - - -
T1 0/1/1 NA NA/Dis 1 - - -
02-01-2018 07:32 AM
02-01-2018 10:52 AM
Thank you again Nipun!
I think I am tracking what you're saying now.
I am to run:
no network-clock synchronization participate 0/1
no network-clock synchronization participate 0/2 to disable participation in the backplane clock.
Currently when I run these commands I get "Slot 0 subslot 1(2) is the source of secondary(primary) clock in use. Please unconfigure the source before disabling the slot. Command Aborted."
So, in controller T1 0/1/1 & controller T1 0/2/1, I am to remove the "clock source line primary | secondary" entries, reload, then re-run the command.
I cannot do this right now, I have to wait until after 6PM EST so I have time to ponder.
If I do not have those clock source line primary|secondary commands loaded, I am assuming that the commands that get clocking from Verizon are the network-clock input-source entries that are pointing to the Verizon ports? Or just having the network-clock synchronization automatic is enough?
Rob
02-01-2018 11:32 AM
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