3com 3C16491 User Manual

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Server
A computer in a network that is shared by multiple end 
stations. Servers provide end stations with access to 
shared network services such as computer files and 
printer queues.
SFP
Small Form Factor Pluggable (SFP) Connectors are based 
on an open standard that enables hot swapping of 
various type of fiber optic and copper-based transceivers 
into the host equipment.
Subnet Address
An extension of the IP addressing scheme that allows a 
site to use a single IP network address for multiple 
physical networks. 
Subnet Mask
A subnet mask, which may be a part of the TCP/IP 
information provided by your ISP, is a set of four 
numbers configured like an IP address. It is used to 
create IP address numbers used only within a particular 
network (as opposed to valid IP address numbers 
recognized by the Internet, which must assigned by 
InterNIC).
Subnets
A network that is a component of a larger network. 
Switch
A device that interconnects several LANs to form a 
single logical LAN that comprises of several LAN 
segments. Switches are similar to bridges, in that they 
connect LANs of a different type; however they connect 
more LANs than a bridge and are generally more 
sophisticated.
TCP/IP
Transmission Control Protocol/Internet Protocol. 
This is the name for two of the most well-known 
protocols developed for the interconnection of 
networks. Originally a UNIX standard, TCP/IP is now 
supported on almost all platforms, and is the protocol 
of the Internet.
TCP relates to the content of the data travelling through 
a network — ensuring that the information sent arrives 
in one piece when it reaches its destination. IP relates to 
the address of the end station to which data is being 
sent, as well as the address of the destination network. 
Traffic Monitoring
Enables the monitoring of port traffic by attaching a 
network analyzer to one switch port, in order to 
monitor the traffic of other ports on the Switch.
Trunking
A method which specifies how to create a single 
high-speed logical link that combines several 
lower-speed physical links.