Any network Tech's Use VLSM in their networks ?

[Michael172]

Right im 5 chapters away from vlsm, ive learned subnetting which is piss.

But does anyone here use vlsm in a working environment ? i can only think people have to use it on huage networks, surely normal subnetting will suffice even very large networks ?

Maybe im being short sighted and when i get to chapter 6 ill understand why we use vlsm but in the mean time could some one tell me.

 

[H182]

I would but I learnt it 2 months ago and forgot already :S

Isn't it so you can subnet the subnet, splitting 1 subnet into more smaller ones? Good if your ISP only povides you with a certain range of ip's to work with.

The above might be total b****cks because I can't remember properly lol.

 

[Michael172]

I think so yer, borrowing bits and what not, guess ill find out.

But i dont see why subnetting alone isnt enough with a regular/large network, i mean vlsm looks pretty hard lol, and i spent 11 solid hours trying to learn subnetting as i couldnt understand what the f**k the tutor was telling me. Taught myself it.

 

[Has]

Wastage of addresses.

Helps keeps things tidy.


VLSM allows an organization to use more than one subnet mask within the same network address space.

Basicly subnetting a subnet. It can be used to maximize addressing efficiency.

 

[Mike_182]

As above, very useful for shared networks and the likes.