The device hostname can be changed.

To set the hostname to myhostname, do:

vrouter running config# system
vrouter running system# hostname myhostname
vrouter running system# commit

To display the hostname state:

myhostname> show state / system
   hostname myhostname

The same configuration can be made using this NETCONF XML configuration:

myhostname running system# show config xml absolute
<config xmlns="urn:6wind:vrouter">
  <system xmlns="urn:6wind:vrouter/system">