The main reason to renumber a large enterprise who is really using and
needs an amount of space of say /19, /18, etc, is that you break your
"marriage" with your transit provider.
Like it or not, they own you. They can up your contract, do whatever they
want, and whether you are multi-homed or not, you must stay with them,
otherwise they take back their space, and you don't want that.
Getting space from ARIN, allows you to cut off your transit to a
particular provider and not have to answer to them like you would if it
were their ip space. this allows you to be flexible and dynamic able to
leave providers that are not providing the type of service you would like
On Wed, 16 May 2001, dre wrote:
> How does one go about justifying the renumbering of public addresses to
> management?
> A /19, /20, or /21 could save us a lot of routing nightmares and our
> providers won't give
> us anything greater than a /22 (which we have lots of). We could easily
get
> portable
> address space from ARIN in a single, much larger CIDR block. How do you
> explain
> the benefits of that to people who do not understand?
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
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>
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