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New Member

Failed Faxes

We have a legacy PBX which our analog fax lines are located. All calls made from a fax machine or received enter and exit through our Cisco 2821 Router. We are getting alot of failed outgoing faxes. Can someone suggest something we need to do, possibly reprogramming the router??

Thank You

11 REPLIES
Hall of Fame Super Gold

Re: Failed Faxes

Begin checking "show controllers T1" for slip errors.

New Member

Re: Failed Faxes

What does a slip error indicate?

Hall of Fame Super Gold

Re: Failed Faxes

A frame alignment mismatch causing fax and modem to fail.

Do you have these errors ?

New Member

Re: Failed Faxes

I will check

New Member

Re: Failed Faxes

in the command prompt is says NMMI2821#

what is the command I should type?

Hall of Fame Super Gold

Re: Failed Faxes

As mentioned above, "show controllers T1".

New Member

Re: Failed Faxes

NMMI2821#show controllers T1

T1 1/0 is up.

Applique type is Channelized T1

Cablelength is long gain36 0db

Description: ***Qwest 54.HGCS/5.-972577***

No alarms detected.

alarm-trigger is not set

Soaking time: 3, Clearance time: 10

AIS State:Clear LOS State:Clear LOF State:Clear

Version info Firmware: 20071011, FPGA: 255, spm_count = 0

Framing is ESF, Line Code is B8ZS, Clock Source is Line.

Current port master clock:recovered from backplane

Data in current interval (538 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 24 hours)

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 1/1 is up.

Applique type is Channelized T1

Cablelength is long gain36 0db

Description: ***Long Distance T1/////54.HCGS/5.974516***

No alarms detected.

alarm-trigger is not set

Soaking time: 3, Clearance time: 10

AIS State:Clear LOS State:Clear LOF State:Clear

Version info Firmware: 20071011, FPGA: 255, spm_count = 0

Framing is ESF, Line Code is AMI, Clock Source is Line.

Current port master clock:recovered from backplane

Data in current interval (565 seconds elapsed):

40 Line Code Violations, 23 Path Code Violations

0 Slip Secs, 0 Fr Loss Secs, 5 Line Err Secs, 1 Degraded Mins

5 Errored Secs, 3 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 24 hours)

46790 Line Code Violations, 20463 Path Code Violations,

0 Slip Secs, 0 Fr Loss Secs, 3005 Line Err Secs, 286 Degraded Mins,

3011 Errored Secs, 2379 Bursty Err Secs, 1 Severely Err Secs, 0 Unavail Sec

s

T1 1/0/0 is up.

Applique type is Channelized T1

Cablelength is long gain36 0db

Description: ***T1 Tie to Avaya***

No alarms detected.

alarm-trigger is not set

Soaking time: 3, Clearance time: 10

AIS State:Clear LOS State:Clear LOF State:Clear

Version info Firmware: 20071129, FPGA: 20, spm_count = 0

Framing is ESF, Line Code is B8ZS, Clock Source is Line.

Current port master clock:recovered from backplane

Data in current interval (594 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

12 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

12 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 24 hours)

0 Line Code Violations, 0 Path Code Violations,

1975 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,

1975 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

New Member

Re: Failed Faxes

NMMI2821#show controllers T1

T1 1/0 is up.

Applique type is Channelized T1

Cablelength is long gain36 0db

Description: ***Qwest 54.HGCS/5.-972577***

No alarms detected.

alarm-trigger is not set

Soaking time: 3, Clearance time: 10

AIS State:Clear LOS State:Clear LOF State:Clear

Version info Firmware: 20071011, FPGA: 255, spm_count = 0

Framing is ESF, Line Code is B8ZS, Clock Source is Line.

Current port master clock:recovered from backplane

Data in current interval (538 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 24 hours)

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 1/1 is up.

Applique type is Channelized T1

Cablelength is long gain36 0db

Description: ***Long Distance T1/////54.HCGS/5.974516***

No alarms detected.

alarm-trigger is not set

Soaking time: 3, Clearance time: 10

AIS State:Clear LOS State:Clear LOF State:Clear

Version info Firmware: 20071011, FPGA: 255, spm_count = 0

Framing is ESF, Line Code is AMI, Clock Source is Line.

Current port master clock:recovered from backplane

Data in current interval (565 seconds elapsed):

40 Line Code Violations, 23 Path Code Violations

0 Slip Secs, 0 Fr Loss Secs, 5 Line Err Secs, 1 Degraded Mins

5 Errored Secs, 3 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 24 hours)

46790 Line Code Violations, 20463 Path Code Violations,

0 Slip Secs, 0 Fr Loss Secs, 3005 Line Err Secs, 286 Degraded Mins,

3011 Errored Secs, 2379 Bursty Err Secs, 1 Severely Err Secs, 0 Unavail Sec

s

T1 1/0/0 is up.

Applique type is Channelized T1

Cablelength is long gain36 0db

Description: ***T1 Tie to Avaya***

No alarms detected.

alarm-trigger is not set

Soaking time: 3, Clearance time: 10

AIS State:Clear LOS State:Clear LOF State:Clear

Version info Firmware: 20071129, FPGA: 20, spm_count = 0

Framing is ESF, Line Code is B8ZS, Clock Source is Line.

Current port master clock:recovered from backplane

Data in current interval (594 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

12 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

12 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 24 hours)

0 Line Code Violations, 0 Path Code Violations,

1975 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,

1975 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Hall of Fame Super Gold

Re: Failed Faxes

Configure:

network clock/participate wic 1

network-clock-select 1 t1 1/1

controller t1 1/0/0

clock source internal

And check for slips stopping or increasing.

New Member

Re: Failed Faxes

I tried these settings. The first 2 were already in there.

When I adjusted the clock source to internal for the long distance t1, the errors increased. I have moved it back to a clock source of line. The errors have slowed down, but are still slipping.

Hall of Fame Super Gold

Re: Failed Faxes

Not sure if you configured the right controller or not.

I meant, change clock source internal under controller going to PBX, not long distance.

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