[AG-TECH] KVMs for AG?
Tom Coffin
tcoffin at ncsa.uiuc.edu
Wed Apr 3 08:26:19 CST 2002
I have noticed that with these switches they somtimes
freeze the mouse and keyboard if you are sending mouse
commands while switching.
I was recently putting our switch through some rugged testing
and figured that I really need to be patient or use a
slower process while switching. I now make sure that I am not
touching the mouse while switching. Let me know if the mouse
and keyboard still freeze while trying this movement.
Not a solution - but a workaround...
At 08:47 AM 4/3/2002 -0500, Mike Weaver wrote:
>We are using a Belkin OmniView Matrix 2x8. We have the Display machine in
>the conference/AG room w/ the audio equipment (Getner(s), amp, etc...).
The
>audio, video & control machines are in a room across the hall to reduce
the
>required space as well as fan noise in the conf room. It is
approximately a
>50 foot run. Everything works, but the video quality on the Linux
boxes is
>a touch less than optimum - very usable, but I'm kinda picky about my
video.
>
>Having said all of that, I should mention that we are contacting Belkin as
>we 'speak' to determine if our unit has problems. It has been pretty
flaky
>at times. We'll lose mouse or keyboard functionality on random channels.
>The CAT5 extender units have reset switches on them so I'm thinking that
>this may be a known 'feature'. Unfortunately, hitting reset does not
always
>fix the problem. Sometimes rebooting the attached PC does the trick. On
>some occasions, I've actually powered down all of the attached PCs, the
>extenders and the KVM switch, reseated all cables and re-applied power to
>all devices. Once things are all working OK, they tend to stay that way,
>but be careful if you reboot! We've never had a problem during a session,
>but the odds will catch up to us eventually. We are also looking into a
>replacement solution, but haven't found much yet.
>
>Cabling is pretty simple. As the audio & video machines are remote, we're
>run the camera cables, RAT audio cables, network (CAT5) cables and the KVM
>CAT5 extender cables all in the same wire run. Because of cable
connectors
>we're using a 4" conduit, but the cables themselves would fit in a 2" run.
>My recommendation is to use the best quality cabling that you can afford.
>
>
>Hope this helps,
>
>Mike
>
>--
>Mike Weaver
>Sr. Network Administrator
>US Department of Energy/SC-31
>Voice: 301-903-0072
>Fax: 301-528-2701
>Email: weaver at er.doe.gov
>----- Original Message -----
>From: <bernholdtde at ornl.gov>
>To: <ag-tech at mcs.anl.gov>
>Cc: <bernholdtde at ornl.gov>
>Sent: Tuesday, April 02, 2002 4:51 PM
>Subject: [AG-TECH] KVMs for AG?
>
>
>> Has anyone used cat5 KVM extenders in an Access Grid context? Are
>> there any issues compared relative to the traditional cabling? Thanks
>> --
>> David E. Bernholdt | Email: bernholdtde at ornl.gov
>> Oak Ridge National Laboratory | Phone: +1 (865) 574 3147
>> http://www.csm.ornl.gov/~bernhold/ | Fax: +1 (865) 574 0680
>
>
___________________________________________________________
Tom Coffin .......................... tcoffin at ncsa.uiuc.edu
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