[KLUG Members] switches vs. hubs
bill
members@kalamazoolinux.org
Fri, 02 Apr 2004 15:38:19 -0500
notes below...
Rusty Yonkers wrote:
>>Switched, button pushed to "uplink" and yes, both units have been
>>power
>>cycled.
>
>
> Do you get green lights on both switches showing good connectivity??
Yup.
> Is your cable run very long?
Maybe three feet, maybe two.
> If you have a long run check to make
> sure that the cabling is correct.
This was a stock cable I had laying around. Too short for anything
useful, great for connecting switches.
> I know that when I was initially
> taught to cable I was taught to just run the colors from left to
> right. Well for longer runs that will not work because you will be
> defeating the functionality of the twisted pair.
For all the custom cabling, which is just about everything except this
stock cable, I always swap them, never straight through.
> 1 and 2 need to be
> one color pair (the standard is either striped orange/orange or
> striped green/green, and 3 and 6 need to be another pair, standard is
> opposite of what you just used above. You would then put blue in 4
> and 5 and brown in 7 and 8 (actually they are not even used truth be
> told).
Might be easier to just swap out the connecting cable. But, I'm
assuming the cable is fine because when I swapped the switch for a hub,
everything worked fine (didn't even have to power recycle anything).
> I have seen situations if the person just went like orange,
> green, blue, brown then a hub would work but a switch would not.
> Don't ask me why because I do not know or care really just that it
> has happened for me... Oh and long would be like over 20 or thirty
> feet.
Hmmmm... And a quick check shows I'm out of RJ-45 ends. Everything
else laying around is just stock cables (which are usually straight
through). I think I have some custom crossover cables I made a while
back. I could use one of those and just turn the uplink button off.
The new switch arrived, so experimentation will follow.
kind regards,
bill