LAN switching (3)
LAN switch bandwidth
- asymmetric switch: unequal bandwidth between ports
- symmetric switch: evenly distributed bandwidth to each port
LAN switch vs. OSI RM
- Layer 2 switch: performs switching and filtering based on MAC address; transparent to network protocols
- Layer 2 switch with Layer 3 feature: switching decisions are based on MAC addresses and some Layer 3 traffic control features (broadcast, multicast, IP fragmentation)
- multi-layer: makes switching decisions on the Layer 2 and Layer 3 addresses