Yes IPv6 can be subnetted. With hex notation, each digit signifies 4 bits of address space. This allows a byte of data to be summarized by 2 digits. For example 126.96.36.199 can be written in hex as 18.AC.60.FO.
A good book for more information on this is IP Addressing and Subnetting, Including IPv6 (printed by Syngress).
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...