Konica Minolta magicolor 1690MF magicolor 1690MF Reference Guide - Page 212
SMB, SMTP, SMTP Authentication, SNMP, Unicast, Multicast, and Broadcast - linux
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Unicast, Multicast, and Broadcast SLP is a unicast and a multicast protocol. This means that messages can be sent to one agent at a time (unicast) or to all agents (that are listening) at the same time (multicast). However, a multicast is not a broadcast. In theory, broadcast messages are "heard" by every node on the network. Multicast differs from broadcast because multicast messages are only "heard" by the nodes on the network that have "joined the multicast group." For obvious reasons network routers filter almost all broadcast traffic. This means that broadcasts that are generated on one subnet will not be "routed" or forwarded to any of the other subnets connected to the router (from the router's perspective, a subnet is all machines connected to one of its ports). Multicasts, on the other hand, are forwarded by routers. Multicast traffic from a given group is forwarded by routers to all subnets that have at least one machine that is interested in receiving the multicast for that group. SMB SMB (Server Message Block) is a protocol for sharing network resources, such as files and printers, in a Windows environment. If the Samba server software is used on Linux or UNIX, services using SMB can be shared. SMTP SMTP (Simple Mail Transfer Protocol) is a protocol for sending E-mail. This protocol was originally used to send E-mail between servers; however, currently it is also used by client E-mail software that uses POP to send E-mail to servers. SMTP Authentication Specification that adds user authentication functions to SMTP, which is used for sending E-mail. When sending E-mail, authentication of the user is performed by the SMTP server, and the E-mail message is permitted to be sent only if authentication was successful. SNMP SNMP (Simple Network Management Protocol) is actually a set of protocols for managing complex networks. SNMP works by sending messages to different parts of a network. SNMP-compliant devices, called agents, store data about themselves in Management Information Bases (MIBs) and return this data to the SNMP requesters. Network Printing 6-9