From: "Sam Lewis" <os2-wireless_users@2rosenthals.com>
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Subject: Re: [OS2Wireless] Nic/router speed drop
Date: Sun, 28 Feb 2010 19:55:31 -0600
References: <list-2247351@2rosenthals.com>

Do you have any network printers?  I was setting up a print share with  
a Linksys router and it really bogged down badly when printing.  Some  
network printers use multicast and I have seen bog down a network.
Sam

Sent from my iPhone

On Feb 28, 2010, at 7:48 PM, "os24u" <os2- 
wireless_users@2rosenthals.com> wrote:

> My several month problem of local lan speeds through Linksys router  
> suddenly dropping from 25-30Mbits to 56k modem speed
> occurred again.  Internet side never changed much, LAN could zoom or  
> crawl.  Followed Lewis's advice that Linksys was burning
> up and replaced with new Dynex.
>
> With LInksys today get sometimes crawl speed, other times relatively  
> normal and lockups on ftp transfer on local side.  With
> Dynex get intial faster speeds and almost immediate lockup.  Thought  
> occured perhaps nic's were not on same network speed.
> Began modifying .nif files for each card as below.
>
> From Accton chip nif:
> [MEDIA]
> display = "Physical Medium Type"
> type = String
> strlength = 14
> ; default = "AUTODETECT"
> default = "UTP_100"
> set = AUTODETECT, UTP, UTP_FD, UTP_100,UTP_100FD
>
> Intel and Admtek also set same.  Tried full duplex 100 first.   Does  
> above look suitable?  Is Autodetect better?  4 months ago
> everything cruised along so something changed.
>
> On suggestion from this list ran Netio as follows with Accton chip  
> as client.  Do these speeds appear normal?  Machines with Intel
> and Accton worked fine in previous months.  Admtek recent addition  
> and it could be swapped for other chipset.
>
> NETIO - Network Throughput Benchmark, Version 1.26
>
> Intel Pro100 nic
> TCP connection established.
> Packet size  1k bytes:  10298 KByte/s Tx,  7621 KByte/s Rx.
> Packet size  2k bytes:  11414 KByte/s Tx,  7636 KByte/s Rx.
> Packet size  4k bytes:  11427 KByte/s Tx,  7616 KByte/s Rx.
> Packet size  8k bytes:  11278 KByte/s Tx,  7624 KByte/s Rx.
> Packet size 16k bytes:  11268 KByte/s Tx,  7471 KByte/s Rx.
> Packet size 32k bytes:  11319 KByte/s Tx,  7581 KByte/s Rx.
>
>  Admtek nic
> TCP connection established.
> Packet size  1k bytes:  8624 KByte/s Tx,  8091 KByte/s Rx.
> Packet size  2k bytes:  9819 KByte/s Tx,  8335 KByte/s Rx.
> Packet size  4k bytes:  10513 KByte/s Tx,  9765 KByte/s Rx.
> Packet size  8k bytes:  11113 KByte/s Tx,  10024 KByte/s Rx.
> Packet size 16k bytes:  11158 KByte/s Tx,  9597 KByte/s Rx.
> Packet size 32k bytes:  11104 KByte/s Tx,  8804 KByte/s Rx.
>
> Since switch of router problem changed.  One part better, something  
> else worse.  Is there a tool to determine what connect speed
> 2 nics connect at?
>
>        Cal
>
> http://www.wisdomtree.info  Largest OS/2 applications and articles  
> URL database
>
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