A wireless emergency stop system includes a machine safety device connected to a machine stop circuit for stopping operation of a machine when the machine stop circuit is activated. The machine safety device includes a wireless communication interface. The system also includes a mobile device controller configured to control operation of the machine, and a safety stop device. The safety stop device includes a wireless communication interface for wireless communication with the machine safety device, and an emergency stop switch configured to, when activated, transmit an emergency stop signal to the machine safety device to trigger an emergency stop of the machine. The mobile device controller is configured to link with the safety stop device via short-range wireless communication.

A wireless emergency stop system includes a machine safety device connected to a machine stop circuit for stopping operation of a machine when the machine stop circuit is activated. The machine safety device includes a wireless communication interface. The system also includes a mobile device controller configured to control operation of the machine, and a safety stop device. The safety stop device includes a wireless communication interface for wireless communication with the machine safety device, and an emergency stop switch configured to, when activated, transmit an emergency stop signal to the machine safety device to trigger an emergency stop of the machine. The mobile device controller is configured to link with the safety stop device via short-range wireless communication.

Disclosed is a server node ID address recognition device, including: a first recognition module, arranged in a cabinet and provided with a light entrance hole and a plurality of light exit holes; a plurality of case vertical plates arranged in the cabinet, each including a light exit hole and a plurality of light entrance holes, and a number and positions of the light entrance holes in each case vertical plate are configured to be associated with an ID address; and a second recognition module arranged on a server, including a light source, the second recognition module is provided with a light exit hole and a plurality of light entrance holes corresponding to the first recognition module.

Disclosed is a server node ID address recognition device, including: a first recognition module, arranged in a cabinet and provided with a light entrance hole and a plurality of light exit holes; a plurality of case vertical plates arranged in the cabinet, each including a light exit hole and a plurality of light entrance holes, and a number and positions of the light entrance holes in each case vertical plate are configured to be associated with an ID address; and a second recognition module arranged on a server, including a light source, the second recognition module is provided with a light exit hole and a plurality of light entrance holes corresponding to the first recognition module.

In some implementations, a router device may identify a network address assignment event. The router device may determine first location information for a deployment site of the router device based on identifying the network address assignment event. The router device may convert the first location information into second location information. The router device may identify a block of network addresses, of a group of blocks of network addresses, corresponding to a region of a set of defined regions. The router device may select, from the block of network addresses, an available network address for the router device. The router device may assign the available network address to an interface of the router device. The router device may enable routing using the interface based on assigning the available network address to the interface.

In some implementations, a router device may identify a network address assignment event. The router device may determine first location information for a deployment site of the router device based on identifying the network address assignment event. The router device may convert the first location information into second location information. The router device may identify a block of network addresses, of a group of blocks of network addresses, corresponding to a region of a set of defined regions. The router device may select, from the block of network addresses, an available network address for the router device. The router device may assign the available network address to an interface of the router device. The router device may enable routing using the interface based on assigning the available network address to the interface.

Methods and apparatus are disclosed for configuring one or more processors to implement service function chains comprising one or more virtualised service functions. A method according to one aspect, performed by a processing module (330) implemented on one or more processors (30), involves steps being performed in respect of at least one new virtualised service function (33) to be included in a service function chain of: determining a position in the service function chain at which the new virtualised service function (33) is to be included; allocating at least one internal address to the new virtualised service function, the at least one internal address being an address to be usable by a switching processor (34); and providing to the switching processor (34) an indication of the at least one internal address allocated to the new virtualised service function (33).

Methods and apparatus are disclosed for configuring one or more processors to implement service function chains comprising one or more virtualised service functions. A method according to one aspect, performed by a processing module (330) implemented on one or more processors (30), involves steps being performed in respect of at least one new virtualised service function (33) to be included in a service function chain of: determining a position in the service function chain at which the new virtualised service function (33) is to be included; allocating at least one internal address to the new virtualised service function, the at least one internal address being an address to be usable by a switching processor (34); and providing to the switching processor (34) an indication of the at least one internal address allocated to the new virtualised service function (33).

Aspects of the embodiments are directed to receiving an address resolution protocol (ARP) request message from a requesting virtual machine, the ARP request message comprising a request for a destination address for a destination virtual machine, wherein the destination address comprises one or both of a destination hardware address or a destination media access control address; augmenting the ARP request message with a network service header (NSH), the NSH identifying an ARP service function; and forwarding the augmented ARP request to the ARP service function.

A configuration method and apparatus which resolves a problem that a forwarding delay of a traffic flow or packet is relatively long. The configuration method includes: a mobile edge ME platform manager determining a network forwarding path NFP from an instantiated first MEC application to a first destination application, where the NFP is used to indicate a forwarding path of a traffic flow or packet that is sent by the first MEC application to the first destination application; the ME platform manager sending an NFP creation request to a virtualized infrastructure manager VIM, to request the VIM to create the NFP determined by the ME platform manager; and the ME platform manager associating the NFP created by the VIM with a first traffic flow rule configured for the first MEC application.