Etherchannel Hashing

[RobinsonRoca]

Does anyone know what hashing algorithm for load balancing Meraki is using when LACP is enabled?  src-mac, dst-mac, src-dst-mac, XOR

I'm having a strange interaction between a stack of meraki switches, and a fortinet firewall.  The Firewall is using src-dst-ip, but I want to match the firewall to the switch.

[Ryan_Miles]

https://documentation.meraki.com/General_Administration/Tools_and_Troubleshooting/Link_Aggregation_a...

[KarstenI]

What is your "strange interaction"? Often matching the algorithms will not give the desired behaviour. In General:

• If the destination is a L3 device, never use dst-mac
• If the source is a L3 device, never use src-mac
• if both are L3 devices never use dst-mac, src-mac or src-dst-mac
• The more information is used in the load balancing decision, the better the load-sharing will be
• A single flow will always end up on a single LAG-member