[TriLUG] ethernet ports on Linksys wrt54g are autosense

[Jeremy Portzer]

On Thu, 2004-10-21 at 06:59, Joseph Mack wrote:

> The wrt54g wap comes with 4 ethernet ports for your LAN. There
> are no link LEDs on the ports (which didn't impress me). Also
> there was no X - straight switch on one of the ports to allow
> me to daisy chain without a crossover cable (this didn't
> impress me either). I do a wifi event in a large field and 
> I need to have the equivalent of a hub every 100m or so
> to get to the other side. If I couldn't daisy chain the wrt54g's
> then I would need to have a hub/switch with every wrt54g.
> Having 3 wap11's I wasn't expecting much from LinkSys in 
> the wrt54g and what I saw fitted my expectations.
> 
> So I called up Intrex about the switches that someone on
> this list had recommended to find that the Intrex switches 
> didn't have an X - straight switch because they didn't need 
> one - all the ports were autosense. I didn't know such things 
> existed and it occured to me to test the wrt54g ports for 
> autosense. 

Actually, this is pretty much standard on all new switches and routers
and such.  The days of having to worry about cross-over cables or
straight-through are happily numbered.

> It turns out that _all_ the LAN ports on the wrt54g are autosense.
> You can plug 2 wrt54g's together and ping through both of them to
> a 3rd device. I did this test to see if the two devices would
> flap, but they appear not to - one of them must decide to be 
> straight and the other crossover.

I don't know precisely how that part works, but I'm sure there's a spec
on it somewhere.  :-)

Jeremy

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