You can use CAR on a router to rate-limit by aggregate. It will rate-limit by IP, sub-net, or just blanket converage. If you want to rate-limit with a CAT6k, then you must have a MSFC card. You can use CAR on the MSFC. But that is creating (one token bucket) or one rate for all the traffice within the designation. If your CAT6k has a PFC also, then you can implement microflow switching, another form of rate-limiting for QoS. Microflow switching can scale to a maximum of 32,000 flows on the PFC. After that, it will start taxing your processor. I do not know the age-out time for the flows, using microflow switching, if anyone know, please let me know. You can set microflow switching to use the ingress or egress. You create a QoS ACL, then you map the QoS ACL to either a port or a VLAN. QoS rate-limiting can also be done the same way as microflow switching, except as an aggregate; you simply choose aggregate instead of microflow. Microflow switching will rate-limit by flow. You could create a rate-limit for the flows within a VLAN, and then an aggregate rate-limit for all of the traffic. There are several ways of doing rate-limiting this way. Hope his helps. Joe Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=17576&t=17576 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
