Configuring Link Aggregation 791more resilient LAG. Best practices suggest using dynamic link aggregationinstead of static link aggregation.When a port is added to a LAG as a staticmember, it neither transmits nor receives LACP PDUs.What is LAG Hashing?PowerConnect 8024 and 8024F switches support configuration of hashingalgorithms for each LAG interface. The hashing algorithm is used todistribute traffic load among the physical ports of the LAG while preservingthe per-flow packet order.The hashing algorithm uses various packet attributes to determine theoutgoing physical port.The switch supports the following set of packet attributes to be used for hashcomputation:• Source MAC, VLAN, EtherType, and incoming port.• Destination MAC, VLAN, EtherType, and incoming port.• Source IP and Source TCP/UDP port numbers.• Destination IP and Destination TCP/UDP port numbers.• Source/Destination MAC, VLAN, EtherType, and incoming port.• Source/Destination IP and Source/Destination TCP/UDP port numbers.• Enhanced hashing modeEnhanced hashing mode has following advantages:• MODULO-N operation based on the number of ports in the LAG.• Packet attributes selection based on the packet type. For L2 packets,Source and Destination MAC address are used for hash computation. ForIP packets, Source IP, Destination IP address, TCP/UDP ports are used.• Non-Unicast traffic and Unicast traffic is hashed using a common hashalgorithm.• Excellent load balancing performance.
