| Configuring the WSM using Device Manager |
|
Bandwidth Management (BWM) enables Web site managers to allocate a certain portion of available bandwidth for specific users or applications. It allows companies to guarantee a higher priority for critical business traffic, such as e-commerce. Traffic classification can be based on user or application information. BWM policies can be configured to set lower and upper bounds on bandwidth allocation.
Bandwidth management occurs on the egress port of the WSM--that is, the port from which the frame is leaving. However, in the case of multiple routes or trunk groups, the egress port can actually be one of several ports (from the point-of-view of where the queues are located).
Rate management is controlled by using queues for each contract and by scheduling when frames are sent from each queue. Each frame is put into a managed buffer and placed on a contract queue. The time that the next frame is supposed to be transmitted for the contract queue is calculated according to the configured rate of the contract, the current egress rate of the ports, and the buffer size set for the contract queue. The scheduler then organizes all the frames to be sent according to their time-based ordering and meters them out to the port.
See also:
|
|