Could be attenuation limit. Try adding 10db
-----Original Message-----
From: Sebastian Ganschow <s.ganschow buelow-masiak.de>
Sent: 05 November 2007 15:09
To: nanogmerit.edu
Subject: STM-1 Connection between Cisco LS1010 an Marconi
ASX-200BX
Hi,
sorry for this little OffTopic.
We've got a brand new STM-1 Connection between 2 of our
POPs. The
Problem is, we're not able to put it into service.
On Side A we've got a Cisco Lightstream 1010 ATM-Switch with
a 155SM PAM
Modul. Side B is a Marconi ASX-200BX with a NM-4/155SMIRE
Module.
The Link is up on both sides, but both switches aren't able
to establish
the ATM Connection.
The path has been measured twice with the result that it
seems that
there are no problems on the physical Layer.
On Side A we can see, that cells are beeing transmitted but
no cells are
received while Side B is only receiving cells. If we
configure a
loopback on Side B Side A is reveiving cells.
We've tested almost everything you can configure on both
sides but the
connection can't be established.
As far as I know both Switches should configure themselfs
automatically.
It would be nice if anybody can give us a hint what we might
have
forgotten to configure.
Confusing is, that we've configured everything exactly the
same as three
other STM-1 Connections between this Cisco LS and two other
Marconi
ASX-200BX ATM Switches.
Thanks in advance.
Regards
Sebastian
--
Mit freundlichen Gruessen,
Dr. Buelow & Masiak GmbH
----------------------------------------------------------
Sebastian Ganschow s.ganschowbuelow-masiak.de
B.Sc.
Dr. Buelow & Masiak GmbH http://www.buelow-masiak.
de
Victoriastraße 119 Telefon +49 (0)2365 4146- 0
D-45772 Marl Fax +49 (0)2365 4146-58
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