Hi
The local loop is E1 (HDB3 coding), but convertor is supplyed by telco. I think so, but cannot be sure, that they running unstructed
G703... so all syncronizing and or CRC4 is out of our hands. local loop is terminated with X21. (I think so, it is connected to the
telco ATM switch over HDSL modem with serial interface onboard...anyway ..it must be configurable... This is rarely case to wax the
telco for this... they can proove with BERTester the local loop.. and like I said...there is no errors :-/ only that dammnn file
making problem... it's silly... oddity like life self...
alex
> -----Original Message-----
> From: Roy [mailto:garlic@garlic.com]
> Sent: Thursday, February 28, 2002 7:47 PM
> To: Kevin Gannon
> Cc: 'kf@reign.sk'; cisco-nsp@puck.nether.net
> Subject: Re: [nsp] Curious case..
>
>
> Check to make sure everything is set for ESF and B8ZS. The
> CSU/DSU may insert
> ones in longs strings of zeros (192 if memory is correct) if
> it things the
> circuit is AMI. Some equipment that I used way back when
> (IDNX) would do it
> even with B8ZS
>
> If you have Cisco router at one end, you can see this by
> sending a large ping
> with the data pattern set to all zeros.
>
> Kevin Gannon wrote:
>
> > This is a left field suggestion but I vaguely remember that
> Cisco BPX
> > switches had problems with long streams of 0's.
> >
> > Please dont flame if my memory is not what it used to be.
> >
> > Regards,
> > Kevin
> >
> > -----Original Message-----
> > From: KF [mailto:kf@reign.sk]
> > Sent: 28 February 2002 11:23
> > To: cisco-nsp@puck.nether.net
> > Subject: [nsp] Curious case..
> >
> > Hi!
> >
> > This is curious case:
> >
> > Line setup:
> >
> > IP:
> > ATM---atmcloud---ATM/FRF-localloop-FR
> >
> > local loop is 2Mbit, encapsulation FRb
> >
> > There is certain problem with file transfer of small file
> (aprox. 500KB)
> > which cannot be transferred over FTP or HTTP.. there are
> > timeouts after few kbytes.. (I can see lot of 00 int the
> middle of the file)
> > any other file is possible to transfer... both
> > directions...
> > doesn't depend on FTP/server/client or platform!... ehm..
> it's somewhere on
> > L2 .... think so the 00 making somewhere problems..
> > didn't sniffed it yet..
> >
> > ANY help ?
> >
> > alex
> >
> >
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This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:34 EDT