SNMP driver

The SNMP power driver enables control of power distribution units of the type frequently found in data centre racks. PDUs frequently have a management ethernet interface and SNMP support enabling control of the power outlets.

The SNMP power driver works with the PXE driver for network deployment and network-configured boot.

List of supported devices

This is a non-exhaustive list of supported devices. Any device not listed in this table could possibly work using a similar driver.

Please report any device status.

Manufacturer Model Supported? Driver name
APC AP7920 Yes apc_masterswitch
APC AP9606 Yes apc_masterswitch
APC AP9225 Yes apc_masterswitchplus
APC AP7155 Yes apc_rackpdu
APC AP7900 Yes apc_rackpdu
APC AP7901 Yes apc_rackpdu
APC AP7902 Yes apc_rackpdu
APC AP7911a Yes apc_rackpdu
APC AP7921 Yes apc_rackpdu
APC AP7922 Yes apc_rackpdu
APC AP7930 Yes apc_rackpdu
APC AP7931 Yes apc_rackpdu
APC AP7932 Yes apc_rackpdu
APC AP7940 Yes apc_rackpdu
APC AP7941 Yes apc_rackpdu
APC AP7951 Yes apc_rackpdu
APC AP7960 Yes apc_rackpdu
APC AP7990 Yes apc_rackpdu
APC AP7998 Yes apc_rackpdu
APC AP8941 Yes apc_rackpdu
APC AP8953 Yes apc_rackpdu
APC AP8959 Yes apc_rackpdu
APC AP8961 Yes apc_rackpdu
APC AP8965 Yes apc_rackpdu
Aten all? Yes aten
CyberPower all? Untested cyberpower
EatonPower all? Untested eatonpower
Teltronix all? Yes teltronix

Software Requirements

  • The PySNMP package must be installed, variously referred to as pysnmp or python-pysnmp

Enabling the SNMP Power Driver

  • Add pxe_snmp to the list of enabled_drivers in /etc/ironic/ironic.conf
  • Ironic Conductor must be restarted for the new driver to be loaded.

Ironic Node Configuration

Nodes are configured for SNMP control by setting the Ironic node object’s driver property to be pxe_snmp. Further configuration values are added to driver_info:

  • snmp_driver: PDU manufacturer driver
  • snmp_address: the IPv4 address of the PDU controlling this node.
  • snmp_port: (optional) A non-standard UDP port to use for SNMP operations. If not specified, the default port (161) is used.
  • snmp_outlet: The power outlet on the PDU (1-based indexing).
  • snmp_protocol: (optional) SNMP protocol version (permitted values 1, 2c or 3). If not specified, SNMPv1 is chosen.
  • snmp_community: (Required for SNMPv1 and SNMPv2c) SNMP community parameter for reads and writes to the PDU.
  • snmp_security: (Required for SNMPv3) SNMP security string.

PDU Configuration

This version of the SNMP power driver does not support handling PDU authentication credentials. When using SNMPv3, the PDU must be configured for NoAuthentication and NoEncryption. The security name is used analogously to the SNMP community in early SNMP versions.