Ed
RCIA <<Relatively Cheap Internet Access>>
Redmond, WA
-----Original Message-----
From: Stephen Fisher <lithium@cia-g.com>
To: Kevin Madsen <pmuser@mut1.muscanet.com>
Cc: portmaster-users@livingston.com <portmaster-users@livingston.com>
Date: Thursday, November 20, 1997 8:36 AM
Subject: Re: (PM) Static on Lines
>
>Please fix your mailer so it wraps correctly..
>
>On Wed, 19 Nov 1997, Kevin Madsen wrote:
>
>> 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 don't find it hard to believe anymore. Did you see my message I sent
>earlier? We had the lines set to ESF/B8ZS when US West's switch was set
>to ESF/AMI!
>
>> 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
>
>They should be fine.. AFAIK.
>
>> problem?! Has anybody had ANY symptoms like this?
>
>We had a lot of renegotations and noise on the lines including random
>times when you called when with a normal phone and hear static along with
>the modem answering!
>
>> 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!
>
>Definately see my previous message and make sure the settings are correct
>between you and Us West.. they weren't between me and them!
>
>Ooh I notice you have wink start - we had a lot of problems also with wink
>start between the PM3's and US West since US West's timing of the winks on
>the switch needed the winks on the PM3 to be much more narrow in length
>(something like 210-240ms when the PM3 did 140-250ms). I would (and did)
>switch them to immediate start - place an order with US West to have them
>changed....
>
>I notice you're getting loss of sync errors.. which could very well be
>caused by this.. check the signalling first.. at the same time check the
>encoding/framing settings with us west's switch (it took 2.5 weeks for us
>to get the signalling changed but it causd a LOT of inital connection
>problems).
>
>Gotta love US West.
>
>> ---------------------- 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
>>
>>
>>
>> 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
>
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