The dladm command can be used with the reset-linkprop subcommand to reset the bge0 link value to unassigned.
Become superuser, or assume the Primary Administrator role.
To create the role and assign the role to a user, see Using the Solaris Management Tools With RBAC (Task Map) in System Administration Guide: Basic Administration.
Use dladm reset-linkprop with the -t to undo the zone assignment of the bge0 device.
global# dladm set-linkprop -t -p zone=excl bge0 LINK PROPERTY VALUE DEFAULT POSSIBLE bge0 zone excl -- -- |
The -p option produces a display using a stable machine-parseable format.
If the running zone is using the device, the reassignment fails and an error message is displayed. See Exclusive-IP Zone Is Using Device, so dladm reset-linkprop Fails.