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SoC
System on a Chip
. An ASIC that contains an entire system. For example, a telecom SoC application can contain
a microprocessor, digital signal processor, RAM, and ROM.
Spanning Tree Protocol
Prevents loops in network traffic. The Spanning Tree Protocol (STP) provides tree topography for any
arrangement of bridges. STP provides one path between end stations on a network, eliminating loops.
SSH
Secure Shell
. Logs into a remote computer via a network, executes commands, and to transfers files from one
computer to another.
Startup Configuration
Retains the exact device configuration when the device is powered down or rebooted.
Subnet
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).
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