Dell PowerConnect 5548P System User's Manual page 721

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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.

Used to mask all or part of an IP address used in a subnet address.

Filters and forwards packets between LAN segments. Switches support any

packet protocol type.

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.

Terminal Emulation Protocol.

Enables system users to log in and use

resources on remote networks.

Trivial File Transfer Protocol

. Uses User Data Protocol (UDP) without

security features to transfer files.

A message sent by the SNMP that indicates that system event has occurred.

Link Aggregation.

Optimizes port usage by linking a group of ports together

to form a single trunk (aggregated groups).

User Data Protocol.

Transmits packets but does not guarantee their delivery.

A form of routing that transmits one packet to one user.

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Dell PowerConnect 55xx Systems User Guide