Trendnet teg-s4000i [12/71] Port trunking

Virtual LANs ( VLANs )

A VLAN is a group of switch ports designated by the switch as

belonging to the same broadcast domain.

This feature allows workgroups to be defined on the basis of their

logical function instead of their physical location, and does not

require recabling. It also enables you to configure port-based VLANs

to help isolate broad- cast traffic and increase security, so as to

increase bandwidth to each station.

VLAN also helps you create limited broadcast domains, to prevent

traffic from being forwarded to stations where it is not needed.

Port Trunking

Port Trunking allows you to build higher bandwidth connections by

aggregate several ports into one single group.

Additionally, it may be more cost-effective to trunk multiple lower

speed links than to underutilize a gigabit port. Available copper links

and supported distances are more pervasive for lower speed links.

For example, 100Mbps NICs and switch ports are less expensive

than 1Gbps equipment.

Port trunking also allows end users to protect their investment in

existing infrastructure by reusing current equipment.

SNMP

( Simple Network Management Protocol ) A widely-used network

monitoring and control protocol. Data is passed from SNMP agents,

which are hardware and/or software processes reporting activity in

each network device ( hub, router, bridge, etc. ) to the workstation

console used to oversee the network. The agents return information

contained in a MIB ( Management Information Base ), which is a

data structure that defines what is obtainable from the device and

what can be controlled ( turned off, on, etc.). Originating in the UNIX

community, SNMP has become widely used on all major platforms.