[AccessD] OT: Network speeds

jwcolby jwcolby at colbyconsulting.com
Mon Mar 19 12:27:49 CDT 2012


 >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.

Good idea, thanks!  I am betting that it is actually saying 1 gbit but I will definitely check.

John W. Colby
Colby Consulting

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

On 3/19/2012 11:01 AM, Jim Dettman wrote:
>
>    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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