...
Bonding mode 6 (balance-alb) is supported when using a single peer switch. If the requirement calls for use of multiple switch chassis to provide switch layer redundancy, configure Swarm to use either bonding mode 1 (active-backup) or, if multi-chassis switch link aggregation (MLAG) is in use, . You may also choose bonding mode 4 (802.3ad) with further planning and testing. Considerations for that are outlined below.
Bonding mode 1 (active-backup) is advised for “out of the box” multi-switch and MLAG configurations, whereas bonding mode 4 (802.3ad) needs additional configuration on the switch side to function. Since failover and traffic balancing with MLAG is proprietary to switch vendors, it is necessary to review switch capability to determine the appropriate bonding mode for MLAG (i.e., bonding mode 1 or 4).
...