After configuring a vPC between the core Nexus 7000 and the middle of row Nexus 5548, the network administrator notices that one of the port channel interfaces is 90% utilized, while the other interfa

`source-destination-ip` uses only source and destination IP addresses, which might not be sufficient to balance traffic from a single server (same source IP) talking to a single destination (same destination IP) if different port numbers are not considered.

`source-destination-mac` uses only source and destination MAC addresses, which is even less granular than IP-based balancing and would likely result in the same imbalance for traffic from a single server.

`destination-port` only considers the destination port, which might not be enough to differentiate and balance traffic from a single server if all its connections target the same SQL port.

The command `port-channel load-balance ethernet source-destination-port` utilizes both source and destination IP addresses and TCP/UDP port numbers for hashing, which provides a more granular load-balancing decision and can better distribute traffic from a single server with multiple connections to a database.