ES42 Series Edge Switches | Installation and User Guide (05/05) |
network. The "cut-through" technique permits collision fragment frames, which are a result of late collisions, to be forwarded--which add to the network traffic. There is no way to filter frames with a bad CRC (the entire frame must be present in order for CRC to be calculated). Since collisions and bad packets are more likely when traffic is heavy, store- and-forward switch technology enables more bandwidth to be available for good packets when the traffic load is greatest.
To minimize the possibility of dropping frames on congested ports, each Magnum ES42 Series Edge Switch dynamically allocates buffer space from 128KB memory pool, ensuring that heavily used ports receive very large buffer space for packet storage. (Many other switches have their packet buffer storage space divided evenly across all ports, resulting in a small, fixed number of packets to be stored per port. When the port buffer fills up, dropped packets result.) This dynamic buffer allocation provides the capability for the maximum resources of the Magnum ES42 Series unit to be applied to all
www . GarrettCom. com
23
