(PM) Static on Lines

Kevin Madsen (pmuser@mut1.muscanet.com)
Wed, 19 Nov 1997 21:08:55 -0600

I have a problem with users complaining about bad static on the line. I =
have experienced this once from home. It seems to effect all users when =
it happens and lasts for a short time (several hours). This weems to =
happen across two PM3-2t and 4 CT1 lines. The portmasters are running =
3.7.2 with all new K56flex cards. The T1s are CT1, ESF, B8ZS, E&M. I =
find it hard to believe that the telco (USWorst) would have problems =
accross 4 T1 lines?!

I have attached sh line0 sh line1 command outputs below. The only thing =
I notice that is strange is the recieve levels. Could this be the =
problem?! Has anybody had ANY symptoms like this?

I have a ticket open with Livingston and USWorst concerning this. The =
first item that would help would be any undocumented commands that help =
isolate a single channel on a T1 line that may be having some problems, =
line quality, etc. USWest is asking me to provide them with a channel =
that is having problems. I don't see how to do that with the =
Portmasters, especially if I can't get connected (never shows up in sh =
modem or sh ses).

If you have static problems, please respond to me so we can pool our =
knowlege (i.e. gang up on USWest/Livingston) and get a quicker answer. =
This is CRITICAL!

Thanks in advance for you time.

Kevin Madsen
Muscatine Informatino Services
kmadsen@muscanet.com

PORTMASTER 3 STATS

pm3> sh line0
---------------------- line0 - T1 Inband DS0 ---------------

Status: UP Framing: ESF Encoding: B8ZS PCM: u-law

Signaling: Trunk E&M wink start

Receive Level: +2dB to -7.5dB

Alarms Violations
----------------------------- -----------------------------
Blue 0 Bipolar 0
Yellow 0 CRC Errors 0
Receive Carrier Loss 0 Multiframe Sync 44
Loss of Sync 4

pm3> sh line1
---------------------- line1 - T1 Inband DS0 ---------------

Status: UP Framing: ESF Encoding: B8ZS PCM: u-law

Signaling: Trunk E&M wink start

Receive Level: -15dB to -22.5dB

Alarms Violations
----------------------------- -----------------------------
Blue 0 Bipolar 15
Yellow 0 CRC Errors 5
Receive Carrier Loss 0 Multiframe Sync 0
Loss of Sync 0 =
=20

PORTMASTER 4 STATS

pm4> sh line0
---------------------- line0 - T1 Inband DS0 ---------------

Status: UP Framing: ESF Encoding: B8ZS PCM: u-law

Signaling: Trunk E&M wink start

Receive Level: -15dB to -22.5dB

Alarms Violations
----------------------------- -----------------------------
Blue 0 Bipolar 0
Yellow 0 CRC Errors 0
Receive Carrier Loss 0 Multiframe Sync 0
Loss of Sync 0

pm4> sh line1
---------------------- line1 - T1 Inband DS0 ---------------

Status: UP Framing: ESF Encoding: B8ZS PCM: u-law

Signaling: Trunk E&M wink start

Receive Level: -15dB to -22.5dB

Alarms Violations
----------------------------- -----------------------------
Blue 0 Bipolar 0
Yellow 0 CRC Errors 0
Receive Carrier Loss 0 Multiframe Sync 0
Loss of Sync 0

pm4> =20

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