Introduction Configuring LAG
Software Reference for SwitchBlade x3100 Series Switches (Layer Two Switching)
4-34
Note: In the case of DLF, Multicast and Broadcast packets, the switch will distribute this traffic over a Link
Aggregation. DLF, Multicast (Known or Unknown), and Broadcast packets will behave just like unicast
packets. They will be hashed and will traverse the LAG just like unicast packets.
Note: For TESTERS: If your test equipment generates traffic by simultaneously incrementing source and
destination MAC addresses for each packet (using an algorithm that XORs the source and destination
MACs), then the test packets will hash to the SAME value. As a result, the test traffic will NOT be
distributed across the LAG.
IPANDPORT portboth & ipboth Hash based on both layer 4 source and destination port (UDP/TCP) and
layer 3 source and destination IP. If packet is not UDP/TCP, then hash
based on the IP addresses. If layer 3 data is not present in the packet,
hashed based on layer 2 source and destination MAC
ALL portboth & ipboth &
macboth
Hash based on layer 4 source and destination port (UDP/TCP), layer 3
source and destination IP, and layer 2 source and destination MAC. If
packet is not UDP/TCP, then hash based on the IP addresses and MAC
addresses. If layer 3 data is not present in the packet, hashed based on
layer 2 source and destination MAC.
This is the default setting, to get the best randomization
TABLE 4-6 SBx3112 - SET SWITCH HASH SELECT Parameters
Parameter Value LAG Hashing Behavior
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