Dell PowerConnect 5548 User Guide - Page 708

Sub-network. Subnets are portions of a network that share a common address component. On TCP/IP networks, devices that share a prefix are part of the same subnet. For example, all devices with a prefix of 157.100.100.100 are part of the same subnet. Subnet Mask Used to mask all or part of an IP address used in a subnet address. Switch Filters and forwards packets between LAN segments. Switches support any packet protocol type. T TCP/IP Transmissions Control Protocol. Enables two hosts to communicate and exchange data streams. TCP guarantees packet delivery, and guarantees packets are transmitted and received in the order their sent. Telnet Terminal Emulation Protocol. Enables system users to log in and use resources on remote networks. TFTP Trivial File Transfer Protocol. Uses User Data Protocol (UDP) without security features to transfer files. Trap A message sent by the SNMP that indicates that system event has occurred. Trunking Link Aggregation. Optimizes port usage by linking a group of ports together to form a single trunk (aggregated groups). U UDP User Data Protocol. Transmits packets but does not guarantee their delivery. Unicast A form of routing that transmits one packet to one user. 708 Dell PowerConnect 55xx Systems User Guide