When using EtherChannel with Cisco WLCs, the recommended load-balancing mode is the source-destination IP address mode. This mode distributes traffic based on the source and destination IP addresses, which ensures that all traffic between a specific client and the WLC is sent over the same physical link. This is important for maintaining client connectivity and optimizing network performance, as it helps to minimize latency, packet loss, and other network issues.
Switches act at Layer 2 , there is a hashing algorithm that can read IP addresses but that's way to complex. Stick with the basics SW = Layer 2 Router = Layer 3 . Right answer is A , I know this because what you wrote chatGPT gave me the exact same answer , and after asking about layer 2 and layer 3 chatGPT rectified the answer and told that source and destination MAC address is right , it got confused .
VOTE for A , think for yourself !
A is correct
If the traffic on a channel only goes to a single MAC address, use of the destination MAC address results in the choice of the same link in the channel each time.
But use of source or IP addresses can result in a better load balance.
Issue the port-channel load-balance {src-mac | dst-mac | src-dst-mac | src-ip | dst-ip | src-dst-ip | src-port | dst-port | src-dst-port} global configuration command in order to configure load balancing.
D. source-destination MAC address
Explanation: For Cisco Wireless LAN Controllers (WLCs), the recommended switch load-balancing mode is typically the "source-destination MAC address" mode. This mode considers both the source MAC address (the client device) and the destination MAC address (the access point) to make load-balancing decisions. This helps distribute client traffic across access points while maintaining session continuity for individual client devices.
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