The Operating System Network Device Driver (NDD) Domain Properties

This section explains the characteristics of operating system NDD domain.

Characteristics of the operating system NDD domain are:

Item	Description
Socket types and protocols	The SOCK_DGRAM socket type is supported by the connectionless datagram protocols. These include Ethernet, token ring, Fiber Distributed Data Interface (FDDI), and FCS protocols. This socket type allows applications to send and receive datagrams directly over these media types. The SOCK_CONN_DGRAM socket type is supported by connection-oriented datagram protocols. Currently, Asynchronous Transfer Mode (ATM) is the only protocol defined for this socket type. This socket type has the property of connection-oriented, unreliable, message delivery service.
Naming	Sockets in the NDD domain have names composed of the operating system NDD name and a second part that is protocol dependent. For example, for ATM, this part contains a 20-byte destination address and subaddress.

Item

Description

Socket types and protocols

The SOCK_DGRAM socket type is supported by the connectionless datagram protocols. These include Ethernet, token ring, Fiber Distributed Data Interface (FDDI), and FCS protocols. This socket type allows applications to send and receive datagrams directly over these media types. The SOCK_CONN_DGRAM socket type is supported by connection-oriented datagram protocols. Currently, Asynchronous Transfer Mode (ATM) is the only protocol defined for this socket type. This socket type has the property of connection-oriented, unreliable, message delivery service.

Naming

Sockets in the NDD domain have names composed of the operating system NDD name and a second part that is protocol dependent. For example, for ATM, this part contains a 20-byte destination address and subaddress.