Questions about "Multi-Netting"

[fyreme]

Hi,

This is my first post. I am studying for the 291 test. In dhcp i came across the term "multinetting". I understand the basics, that it allows for multiple subnets on the same physical subnet. But I have never really read anything in depth on the subject, and would consider myself fairly well versed in tcp/ip.

Could anyone point me to further study, how it is implemented, etc? I hate only knowing something vaguely, it drives me nutz.

tia
norm

btw if subnetting is used to limit a broadcast domain, why multinet? i take it the custom subnetting and multinetting are mutually exclusive?

 

[kcnychief]

Here is a good read for you -

http://www.extremenetworks.com/services/documentation/ExtremeWareUser622-Chapter16.asp

If you don't want to read the whole thing, do a search for "multinetting"

Any specific questions regarding it, post back

 

[Brad]

Here is a good read for you -

http://www.extremenetworks.com/services/documentation/ExtremeWareUser622-Chapter16.asp

If you don't want to read the whole thing, do a search for "multinetting"

Any specific questions regarding it, post back

sweet, that's my company.

 

[fyreme]

Thank you Kcnychief.

I'll read it and post soon. Thanks again!

Knowledge is power

 

[fyreme]

Im guessing that multinetting is a subject that is covered in depth in cisco networking?

Thanks for an excellant article.

 

[kcnychief]

If you are referring to the 70-291, you don't need to know too much about multi-netting. The only thing you need to know related to IP addressing is the classes and how to subnet.

 

[fyreme]

I am refering to 291. I am just curious, and always want to know more, knowledge is power.

The text says to use multinetting when your number of hosts on a subnet grows beyond available addresses. What confuses me is if two dhcp servers are handing out ip addys, how, when the network is first configured, are the host ip's determine, that is, how are host configured for a particular subnet, since two servers with 2 scopes are available.

I understand how renewing a lease would work, the network address would be used to determine which scope, and therefore, which dhcp server to use.

Also, I have read to keep a subnet below 100 hosts, as broadcasts will saturate the available bandwith. Is this correct? How many hosts can reasonably populate a subnet.

Guys, thank you so much for taking the time to answer my questions, I really really appreciate it.