Re: Networking 5494/Ethernet/TokenRing -- MIDRANGE-L

If you have made no changes to the network,  I have to think that it has to be a
line problem.  Call your carrier and have them check the lines.

I was trying to install a IBM 5494.  The plan was to attached the 5494 to a T/R
and then source route bridging/data link switching to the host T/R.  I was going
nuts! The 5494 was losing connection to the 400. Let me tell you about some not
too happy users at that remote site.   I was changing the timers on the T/R, the
400 and the controller. The IBM router people said it was the line.  The IBM 
5494
people said that it was the line.  The AS/400 people said that it was the line.
I called the telco every day to test the line.  Then!  It just worked! I have
been up now for about 2 1/2 weeks (knock on wood) with no dropping of the
controller.   I think that it was really the telephone line that was causing the
problems. The bad part is that the sneaky people at the telephone company will
tell you that they did not do anything.  But after I complained LOUDLY, for some
reason it started to work.

In trying to get my problem solved, I have been told many communications
stories.  The best so far is the cleaning crew.  At night they would come into 
an
office, unplug the controller to plug in their vacuum cleaner.

john

Doug Barnes wrote:

> We have a couple 5494s attached to ethernet network connecting to different
> 400s on T/R network. The T/R and Ethernet networks are connected via a
> CISCO 7500 series router. Initially when this was installed we had no
> problems, but more recently the 5494s and some PCs are losing their
> connection to 400s. One 5494 is 3-5 times a day, knocking down an entire
> business office full of CSR's.
>
> We reduced the Max Frame size on T/R line desription to 1033, but it hasn't
> appeared to be helping.
>
> Any suggestions?
>
> IBM suggests we have CISCO resolve issue.
> CISCO says they are only bridging SNA traffic.
>
> - Doug Barnes -
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--
John Buying
Strategic Business Systems, Inc.
300 Lake Street, Suite B, Ramsey, NJ 07446  USA
E-mail: mailto:jbuying@sbsusa.com   Phone: (201) EASY400 x145
Web:    http://www.sbsusa.com       Fax:   (201) 327-6984


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