Well the advantage is that I saw was that some switching modules are supported
in 5.x that aren't supported in 4.x
I think it was the 36 port 10/100 switching modules from memory.
I think there might have also been something with NetFlow enhancements in 5.x
over 4.x?
Both do support ISL but remember Cisco themselves have stated that they will not
support ISL in the future and that VLAN's should use dot1q from now on.
In fact there are some 28xx and 29xx switches that now cannot support ISL!
I know the 2824G with new software cannot for sure!
Darren
Mark Holloway wrote:
> 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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