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LOSSARY
169
standby port
The port in a resilient link that takes over data transmission if the main
port in the link fails.
STP
See
Spanning Tree Protocol (STP)
.
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.
Switch Database
See
Forwarding Database
.
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 endstation to which data
is being sent, as well as the address of the destination network.
Telne t
A TCP/IP application protocol that provides a virtual terminal service,
letting a user log into another computer system and access a device as
if the user were connected directly to the device.
TFTP
Trivial File Transfer Protocol. Allows you to transfer files (such as
software upgrades) from a remote device using the local management
capabilities of the Switch.
traffic prioritization
A system which allows data that has been assigned a high priority to
be forwarded through a switch without being obstructed by other data.
Transcend
®
The 3Com umbrella management system used to manage all of 3Com’s
networking solutions.
unicast
A packet sent to a single endstation on a network.
VLAN
Virtual LAN. A group of location- and topology-independent devices
that communicate as if they are on the same physical LAN.
VLAN tagging
A system that allows traffic for multiple VLANs to be carried on a single
link.