[Ensure the physical cable is installed.]
Become superuser on any node and place the node to be removed in maintenance state.
# scsetup
Select Cluster interconnect.
Select either Add a transport cable, Add a transport adapter to a node, or Add a transport junction.
Answer the questions when prompted. 
   You Will Need:         Example:
   node names             phys-schost-1
   adapter names          qfe2
   junction names         hub2
   transport type         dlpi
[Verify that the scconf command completed successfully:]
Command completed successfully.
Quit the scsetup Cluster Interconnect Menu and Main Menu.
[Verify that the cable, adapter, and junction are added:]
# scconf -p | grep cable
  Transport cable:   phys-schost-2:qfe0@1 ethernet-1@2    Enabled
  Transport cable:   phys-schost-3:qfe0@1 ethernet-1@3    Enabled
  Transport cable:   phys-schost-1:qfe0@0 ethernet-1@1    Enabled
# scconf -p | grep adapter
  Node transport adapters:                         qfe2 hme1 qfe0
  Node transport adapter:                          qfe0
  Node transport adapters:                         qfe0 qfe2 hme1
  Node transport adapter:                          qfe0
  Node transport adapters:                         qfe0 qfe2 hme1
  Node transport adapter:                          qfe0
# scconf -p | grep junction
  Cluster transport junctions:                       hub0 hub1 hub2
  Cluster transport junction:                        hub0
  Cluster transport junction:                        hub1
  Cluster transport junction:                        hub2