o- nvmf ...................................................................................................................... [...]
  o- subsystem ..................................................................................................... [Subsystems: 4]
  | o- nqn.2014-08.org.nvmexpress.discovery ......................................................... [st=Discovery, Allow any host]
  | | o- hosts .......................................................................................................... [Hosts: 0]
  | | o- listen_addresses ........................................................................................... [Addresses: 0]
  | o- nqn.2014-08.org.spdk:cnode1 ...................................................... [sn=$(S), st=NVMe, Allow any host]
  | | o- hosts .......................................................................................................... [Hosts: 1]
  | | | o- nqn.2014-08.org.spdk:cnode2 ....................................................................................... [...]
  | | o- listen_addresses ........................................................................................... [Addresses: 3]
  | | | o- $(N).$(N).$(N).$(N):4260 $(S) [RDMA]
  | | | o- $(N).$(N).$(N).$(N):4261 $(S) [RDMA]
  | | | o- $(N).$(N).$(N).$(N):4262 $(S) [RDMA]
  | | o- namespaces ................................................................................................ [Namespaces: 4]
  | |   o- Malloc3 .................................................................................................... [Malloc3, 1]
  | |   o- Malloc4 .................................................................................................... [Malloc4, 2]
  | |   o- Malloc5 .................................................................................................... [Malloc5, 3]
  | |   o- Malloc6 .................................................................................................... [Malloc6, 4]
  | o- nqn.2014-08.org.spdk:cnode2 ...................................................... [sn=$(S), st=NVMe, Allow any host]
  | | o- hosts .......................................................................................................... [Hosts: 0]
  | | o- listen_addresses ........................................................................................... [Addresses: 1]
  | | | o- $(N).$(N).$(N).$(N):4260 $(S) [RDMA]
  | | o- namespaces ................................................................................................ [Namespaces: 1]
  | |   o- Malloc2 .................................................................................................... [Malloc2, 1]
  | o- nqn.2014-08.org.spdk:cnode3 ...................................................... [sn=$(S), st=NVMe, Allow any host]
  |   o- hosts .......................................................................................................... [Hosts: 2]
  |   | o- nqn.2014-08.org.spdk:cnode1 ....................................................................................... [...]
  |   | o- nqn.2014-08.org.spdk:cnode2 ....................................................................................... [...]
  |   o- listen_addresses ........................................................................................... [Addresses: 2]
  |   | o- $(N).$(N).$(N).$(N):4260 $(S) [RDMA]
  |   | o- $(N).$(N).$(N).$(N):4261 $(S) [RDMA]
  |   o- namespaces ................................................................................................ [Namespaces: 1]
  |     o- Malloc1 .................................................................................................... [Malloc1, 1]
  o- transport ..................................................................................................... [Transports: 1]
    o- RDMA .................................................................................................................. [...]