---
features:
  - Change the port for devices in the ring by adjusting
    the port value for services, hosts, or devices. This
    will not involve a rebalance of the ring.
  - Changing the port for a device, or group of devices,
    carries a brief period of downtime to the swift
    storage services for those devices. The devices will
    be unavailable during period between when the
    storage service restarts after the port update, and
    the ring updates to match the new port.