Configuration Guide 120
Configuring LAG LAG Configuration
Step 2 port-channel load-balance { src-mac | dst-mac | src-dst-mac | src-ip | dst-ip | src-dst-ip }
Select the Hash Algorithm. The switch will choose the ports to transfer the packets based
on the Hash Algorithm. In this way, different data flows are forwarded on different physical
links to implement load balancing.
src-mac: The computation is based on the source MAC addresses of the packets.
dst-mac: The computation is based on the destination MAC addresses of the packets.
src-dst-mac: The computation is based on the source and destination MAC addresses of
the packets.
src-ip: The computation is based on the source IP addresses of the packets.
dst-ip: The computation is based on the destination IP addresses of the packets.
src-dst-ip: The computation is based on the source and destination IP addresses of the
packets.
Step 3 show etherchannel load-balance
Verify the configuration of load-balancing algorithm.
Step 4 end
Return to privileged EXEC mode.
Step 5 copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to set the global load-balancing mode as src-dst-mac:
Switch#configure
Switch(config)#port-channel load-balance src-dst-mac
Switch(config)#show etherchannel load-balance
EtherChannel Load-Balancing Configuration: src-dst-mac
EtherChannel Load-Balancing Addresses Used Per-Protocol:
Non-IP: Source XOR Destination MAC address
IPv4: Source XOR Destination MAC address
IPv6: Source XOR Destination MAC address
Switch(config)#end
Switch#copy running-config startup-config
2.2.2 Configuring Static LAG or LACP
You can choose only one LAG mode for a port: Static LAG or LACP. And make sure both
ends of a link use the same LAG mode.
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