For those, like myself, who discarded the etherchannel approach based on the label Etherchannel (as in Cisco Etherchannel), take a second look.
Part of the
AIX etherchannel functionality is Network Interface Backup. If one sets up a single interface etherchannel and assigns a NIB, no Etherchannel support is necessary at the switch. Simple redundancy without the complication of HACMP.