Bandwidth control

[mo shea]

Hi..

Currently we are installing an ATM 2M line at our site and I am a bit worried that users would abuse it by downloading large files over the internet and consume bandwidhth.

I'd like to know how the router (3660) shares the bandwidth between users by default, for example, if two users are downloading they get 50% bandwidth each, 4 users get 25% each and so on....?

How is it possible to control bandwidth and is there a product that monitors (LAN) bandwidth conumption per user and not WAN, because I have no acces to the router, only core

Thanx

[pflunkert]

Hi,

what you want you can configure with qos. When you read the QOS section of the configuration guides (for example http://www.cisco.com/en/US/products/sw/iosswrel/ps5187/prod_configuration_guide09186a008017d8e5.html) you will find all what you want. You can configure it also on the LAN interfaces.

Regards

Peter

[mo shea]

Thanks Peter.

I just need to know whether in Qos is required for a medium business, 250-300 users, no bandwidth sensitive applications, only internet.

Is the default (best effort) enough in such cases.

If I need to use Qos it should be configured on the router (3660) core (6509) and edge switches, right?

Thanx

[pflunkert]

Hi,

it depends from your application. When your business and web traffic will use the same link, i will recommend to priorize the business traffic.

When you Qos it's good to use the QoS in your whole network. Unfortunally it's manny to do. So i would configure QoS on the bottlenecks (router LAN/WAN site). On the edge switches you can identify the traffic through acls, but it's not really neccessary.

When you should become problems with your application in your lan you must also you QOS in the LAN.

Regards

Peter