There is more than just memory difference between the two Sup.
The major difference is the backplane. The Sup 1 can only access one
backplane (Cat 5000/5002). Sup 2 can access three backplane (Cat 550Xs).
For VLAN lab, Sup 1 with IOS 4.x is just fine.
Albert
""Mark Holloway"" <[EMAIL PROTECTED]> wrote in message
007701bfc92a$1354d7c0$[EMAIL PROTECTED]">news:007701bfc92a$1354d7c0$[EMAIL PROTECTED]...
> I know the Catalyst 5000 Supervisor 1 engine only supports LAN Switching
IOS
> 4.x and lower due to the 16MB memory limit. Some Sup 2 modules only
support
> 4.x, some support 5.x, but are there really any advantages to running IOS
> 5.x versus 4.x? If not, are there any advantages of 4.x on a Sup 2 versus
a
> Sup 1? Do they all support ISL?
>
> Thanks,
> Mark
>
>
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