Vlsm vs CIDR

hello,
I now come to realize i don't understand vlsm&cidr completely.
Once I thought VLSM meant Subnetting (taking a network and subnetting it) and CIDR was aggregating those subnets (through ABR or ASBR).
:idea: -->Now some1 tells me it's the same thing (but CIDR is cisco proprietary).
I'm really really (really!) confused.
plz help.
thanks :roll:

Hi,

You might want to give a look here : www.firewall.cx/supernetting-intro.php

Cheers..

~Pranav

May be aslo this will be useful :

www.experts-exchange.com/Networking/Q_21400371.html