Re: OT : ISP

Hi Vishal,

Each ISP will do things a little differently somewhat depending on their
equipment capabilities and business model but generally, the concept is to
condition your traffic as close to the access/customer as possible because
it doesnt make much sense to transport something all the way and just rate
limit it at the end, and you miss out on some statistical bandwidth
overbooking of your shared infrastructure.

One method may have the ISP router interface shaping to your contracted
bandwidth downstream to the aggregation network and to the 3750, and the
3750 just passes traffic through at that constrained rate.
In the upstream direction perhaps the 3750 will classify traffic rate limit
upstream (policing) in a relatively fine grained (to your contracted BW) or
coarse (perhaps to 10Mbps if your contracted BW is 7Mbps) manner and then
perform a more fine-grained level of classification and policing on ingress
to the ISP router.

Your ISPs account manager may be able to put you in contact with a
technical representative to explain how it operates in their specific
environment.

Cheers,
Adam

On Sun, Dec 16, 2012 at 11:00 PM, Vishal Rane <vishal.rane_at_hotmail.co.in>wrote:

> Hello Experts
>
> can someone help me to understand how ISP restrict
> bandwidth for its customers. cdp neigh command on our Internet Edge
> router indicates the link is terminated on cisco 3750 switchwhat
> configuration
> is done on the switch to restrict the bandwidth
>
> our internet bandwidth 7MBTwo public range of /29 is provided by ISP
>
> cheersVishal
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Sun Dec 16 2012 - 23:22:01 ART