[Gllug] What's that network congestion setting called?

[James Bromberger]

On 9 Feb 2005, at 10:00, Tethys wrote:
> Ian Northeast writes:
>> PS I don't actually know if a Cisco switch would autonegotiate 
>> correctly
>> with Linux.
>
> As far as I can tell, Cisco switches are incapabale of autonegotiating
> correctly with *anything*. Cisco advise always using autonegotiation.
> Strange, then, that they seem incapable of shipping a product where
> that actually works. We hardwire speed and duplex on all of our ports,
> simply because using autonegotiation causes more problems that it 
> solves,
> at least with Cisco equipment.

I always found that Cisco switches and Sun boxes would consistently 
auto negotiate in opposite ways; host would do full duplex, and switch 
would do half. What's more they'd take 30 seconds to STP enable a port 
by default (without 'portfast', where 'portfast' means this port isn't 
an Inter-switch-link (ISL)).

OT... slightly....  but by comparison, the DLink GGS3324-SR (I think 
thats the model number) 24-port gigabit switches all STP negotiate 
within about 1 to 3 seconds, auto neg to 1GB fdx properly, and 
generally work very well. I'd have trouble recommended a Cisco over 
this DLink. I now have around 10 of them. With the newer firmware (v3 
iirc), they all support MSTP (multiple spanning tree), and I have 6 of 
them all multi-inter-linked so there is no single point of failure in 
the entire switching infrastructure.

Ho hum.

   James

--  
  James Bromberger, Senior Systems Administrator
  Fotango, 64 Ironmonger Row, London, EC1V 3QR
  http://www.fotango.com/
  Tel: +44 20 7251 7010     Fax: +44 20 7608 3592

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