Since the Catalyst 5002 only has 2 slots, one for the Supervisor module and another for whatever module you want, I was going to use multiple blades and interchange them after using each.  For example, let's say I own a WS-X5225R Ethernet 10/100 blade and a WS-X5155 ATM LANE card (talking to a 3Com Corebuilder 7000 running LANE).  Well, I can only use one at a time, so would it be just as beneficial to spend x number of weeks learning 802.1q and ISL, then removing that blade and using the ATM LANE, or would it make more sense to use it all on a bigger chasis that can house all the blades at one time?  The reason why I ask is that a 5002 chasis w/power supply is just $639, a Supervisor one is $789, and this all makes for a cheap Cat5k to build on.  Most of the used Cat5k 6 slot chasis' I've seen come with a Supervisor one, non-ISL 10/100 blade, and sell for around $2800-$3000.  That's too much being that the 10/100 is useless for the CCIE lab unless it does ISL and 802.1q.
 
Regards,
Mark
 

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