Cabling the HA interconnect (32xx systems in separate chassis)
To enable the HA interconnect between 32xx controller modules that reside in separate chassis, you must cable the onboard 10-GbE ports on one controller module to the onboard 10-GbE ports on the partner.
Cabling the HA interconnect (80xx systems in separate chassis)
To enable the HA interconnect between 80xx controller modules that reside in separate chassis, you must cable the QSFP InfiniBand ports on one I/O expansion module to the QSFP InfiniBand ports on the partner's I/O expansion module.