Cabletron Systems SmartSTACK 100 User Manual
Page 102

B-4
Glossary
encapsulation
A method for moving messages across networks that use different 
types of protocols. The message is encapsulated (rather than 
translated), so it can move across a network that otherwise could 
not understand its protocol. Encapsulating bridges and switches 
generally use proprietary encapsulation schemes.
encode
To translate data into a series of electrical or optical pulses that can 
travel efficiently over a cable or other medium.
entity
An active element within an Open Systems Interconnection (OSI) 
network layer or sublayer.
extended LAN
A collection of LANs interconnected by protocol-independent 
bridges or switches.
filtering rate
A measure (in packets per second) of the ELS100-16TX’s efficiency 
in examining each frame, comparing it with an address table, and 
then deciding whether to discard the frame or forward it.
forwarding rate
The rate (in packets per second) at which the ELS100-16TX can 
receive a stream of packets from one network segment, complete 
all processing, and transmit the packets to another network 
segment.
frame
A data message that includes a source address, destination 
address, data, frame check sequence (FCS), and control 
information.
full wire speed
Refers to packet forwarding at the maximum rate at which data 
can be transmitted on a given LAN.
