Re: Switch or hub

[Larry Bolhuis <lbolhuis@xxxxxxxxxx>]

Some switches and AS/400's don't 'play nice together' without some ground 
rules.  This includes some Cisco and 3COM stuff. Often the results are simply 
that the wrong speed is selected (i.e. 10 instead of 100 Mb) or more commonly 
the duplex comes up *HALF instead of *FULL. In rarer cases the link fails 
altogether. Interestingly it seems the low end stuff (Netgear, etc) almost 
never shows the problems but I suspect that's because those units aren't 
trying to do trunking etc.

The solution is almost always to go into the switch and tell it to use 100MB 
and Full Duplex. Then do the same on the AS/400 *LIND. This almost Always 
solves the problem.

 - Larry


Scott Klement wrote:
> > Several years ago when a new building was built & a new network was
> > installed, we plugged the 400's into a switch.  After much trial &
> > tribulation, we were told to plug the 400's into a hub.
>
> [SNIP]
>
> > The question is:  Do I still plug the 400's into a hub or a switch and/or is
> > there a setting that could be changed to allow use to use a switch?



--
Larry Bolhuis           | IBM eServer Certified Systems Expert
Vice President          |     iSeries Technical Solutions V5R2, V5R1, V4R5...
Arbor Solutions, Inc.   |     iSeries LPAR Technical Solutions V5R2
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(616) 451-2571 -fax     | IBM eServer Certified Systems Specialist
lbolhuis@xxxxxxxxxx     |     iSeries System Administrator for OS/400 V5R2
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                        |     iSeries System Command Operations V5R2
                        |     Client Access


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