[CentOS] [OT] Network switches

[Rob Townley]

On Tue, Mar 24, 2009 at 11:16 AM, Rainer Duffner <rainer at ultra-secure.de> wrote:
> Rob Townley schrieb:
>> On Tue, Mar 24, 2009 at 10:24 AM, Rainer Duffner <rainer at ultra-secure.de> wrote:
>>
>>> Rob Townley schrieb:
>>>
>>>> Every time i read these posts they are filled with contradictions in
>>>> that one person loves HP and hates CiscoLinksys while another hates
>>>> HP.  Let's get a more scientific approach.  Switch performance still
>>>> depends on the NICS in the client machines.
>>>>
>>> Uhm. No. Not any longer, AFAIK.
>>> At least, once you leave the SOHO region (AFAIK, the OP wanted >= 48
>>> ports. I don't want to work in such a home-office, really...).
>>>
>>
>> There are 48 port SOHO priced switches nowadays.
>
>
> I see your point.
> I only imagined the "home office" that would need 48 ports ;-)
>
>
>>   i am often not very
>> impressed by network performance and need standardized benchmarks to
>> figure out if there may be an issue at the NIC driver, switch or on up
>> to a virus shield.   It was either a ~2004 Dell Power magazine or
>> ~2004 Network World article that mentioned that 3Com NICs didn't
>> perform well with Cisco switches and vice versa.
>
> Hm. I think I saw something like that (I was at a site that used
> Catalyst 6500-switches to connect desktops - in 2001).
> Autosensing was useless...
>
>>   They also wrote
>> about other vendors and i don't remember any of them performing
>> extremely well across vendor.   Now that NICs are a commodity, the
>> problem could be worse.
>>
>>
>
> Here, autosensing sometimes doesn't work. Then, you've got to set it
> fixed on both the client and the switch-port.
>
>
>
>> What "performance data" are you referring to?
>>
>
>
> What you gathered in the past from other switches on your LAN - and what
> you read on the internet ;-))
> I'm not a networking-guy (switches are done by someone else here).
>
>
>
> Rainer
>
>
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You did read it because they autosensing was a big factor in the
article(s).  However, iirc, for some combinations of switches and nics
still didn't perform well with autosensing off.