Displays OpenStack subnet information.
# efa openstack subnet show +--------------------------------------+--------------------------------------+---------------+------------+ | Subnet ID | Network ID | CIDR | Gateway IP | +--------------------------------------+--------------------------------------+---------------+------------+ | 323e4567-e89b-12d3-a456-426655440001 | 123e4567-e89b-12d3-a456-426655440001 | 20.32.45.0/24 | 20.32.45.1 | +--------------------------------------+--------------------------------------+---------------+------------+ | 323e4567-e89b-12d3-a456-426655440002 | 123e4567-e89b-12d3-a456-426655440002 | 10.32.45.0/24 | 10.32.45.1 | +--------------------------------------+--------------------------------------+---------------+------------+