[AccessD] OT: Network speeds

Jim Dettman jimdettman at verizon.net
Mon Mar 19 10:01:11 CDT 2012


  So more then likely, you need to be looking else where.

  Next thing I would check is the link lights on the switch or NIC of the
machines (switch is probably a better bet).  See if it's indicating a
100mb/sec connection or 1000 mb/sec.

Jim.

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of jwcolby
Sent: Monday, March 19, 2012 10:20 AM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] OT: Network speeds

Jim,

 >5e can go up to 1000 mb/sec.  I would be surprised if you simply had 5
everywhere.  It wasn't that 
long ago that you moved there.

You are correct it is 5e, and I wired the house myself.  I bought the cable.
I just clump all cat 5 
together and and all cat 6 together...

 >The other thing to check (assuming you did your own wiring) is that the
connectors are on properly.

I bought a wire checker which does this testing for me.

Everything is truly switches.  I stopped using hubs a decade ago.

John W. Colby
Colby Consulting

Reality is what refuses to go away
when you do not believe in it

On 3/19/2012 7:52 AM, Jim Dettman wrote:
> John,
>
> <<It is not cat 6, in fact the whole house is cat 5.>>
>
>    This is something you really need to look at.  Cat 5 is only certified
up
> to 100mb/sec.  It will go faster, but it is not recommended.  5e can go up
> to 1000 mb/sec.  I would be surprised if you simply had 5 everywhere.  It
> wasn't that long ago that you moved there.
>
>    The other thing to check (assuming you did your own wiring) is that the
> connectors are on properly.  They need to be wired in a specific pattern
> (white/orange, orange, white/green, blue, white/blue, green,
w/brown,brown)
> and the last twist in the wires should be within 1/2" of the end of the
> connector.
>
>    But with all that said, your getting so little speed, I think your
problem
> lies else where as the rest of the house is wired the same and seeing much
> higher speeds.
>
>    A simple ping test from one to the other should show<1 ms response if
> everything is basically sound.
>
>     I would also suggest swapping some ports and seeing if the problem
moves,
> just in case you have a bad port on one of your switches, but I doubt it
> will.
>
>     And are these truly switches or are they hubs?  If the latter, you
should
> have no more then three devices in a chain (hub, hub, hub, and device is a
> no-no).
>
> Jim.
>
>
> -----Original Message-----
> From: accessd-bounces at databaseadvisors.com
> [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of jwcolby
> Sent: Saturday, March 17, 2012 11:13 PM
> To: Access Developers discussion and problem solving
> Subject: Re: [AccessD] OT: Network speeds
>
> It is not cat 6, in fact the whole house is cat 5.
>
> I have a pair of "servers", one of which really is - dual cpu 16 core 64
gig
> ram.  That is at the
> far end in the basement under the living room.  In that same location is a
> former workstation which
> is now my unraid file server.  They plug into a gigabit switch.  Coming
off
> of that is a wifi
> hotspot (router with the dns turned off serving wifi) sitting in the drop
> ceiling in the basement,
> under the living room floor providing wifi to the front part of the house.
> Another cable going off
> to a small 100 mbit switch upstairs behind my TV.
>
> In the middle is another gigabit switch about 80 feet (of cable) at the
> place where the internet
> comes in to the house.  So that switch basically has a cable from the
above
> mentioned servers, a
> cable from my router / wifi (which is of course 100 mbit) and a cable
going
> upstairs two floors to
> my home office.  At my office end is another "server" and my workstation
> laptop.  That has a gigabit
> switch and a wifi hotspot (router with the DNS turned off just serving
> wifi).
>
>
> (1st floor Living room / end of house)
> 100 mb sw behind tv>WMC TV (computer / tv)
>     V
>
> (basement under living room)
> gb sw 	>SQL Server (computer) Win 2008 x64
> 	>Unraid file server (computer)
> 	>wifi hotspot
>     V
>
> (basement Middle of house)
> gb sw	>Internet router / Wifi>  Wife's laptop (computer)
> 	>Living room public PC (computer)
> 	>gb sw Back bedroom>WMC (computer / tv)
>     V
>
> (2nd floor office end of house)
> gb sw	>VM Server (computer) Win 2008 X46
> 	>Dev workstation laptop (computer)
> 	>Wifi hotspot
> 	  V
> 	>Old workstation laptop (computer)
>
> I have done file transfers on the SQl Server from disk to disk and get
> 150-400 mbytes / sec.  This
> is all either SSD raid or raid 6 hard disk.
>
> I have done file transfers on the VM server on the other end of the house.
> Again very good speeds,
> 150 MB / sec or better.  Raid controllers or SSD.
>
> But between these two machines... 10 MB / sec transfers.  It certainly
looks
> to me like the LAN.
>
> John W. Colby
> Colby Consulting
>
> Reality is what refuses to go away
> when you do not believe in it
>
> On 3/17/2012 9:14 PM, Stuart McLachlan wrote:
>> Is all your wiring Cat6?
>
>

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