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 - 04:13:06 EDT