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CSMA/CD
Carrier Sense Multiple
Access/Collision Detect
is the communication method employed by
Ethernet and Fast Ethernet.
Full Duplex
Transmission method that allows switch and network card to
transmit and receive
concurrently,
effectively doubling the bandwidth of that link.
Port Trunk
Defines a network link
aggregation and trunking method
which specifies how to create a
single high-speed
logical link that combines several lower-speed physical links.
Virtual LAN (VLAN)
A
Virtual LAN
is a collection of network nodes that share the same collision domain regardless
of their physical location or connection point in the network. A
VLAN serves
as a logical
workgroup with no physical barriers, and allows users to share information and resources as though
located on
the same LAN.
IEEE 802.1Q
VLAN Tagging
—Defines Ethernet frame tags which carry
VLAN
information. It allows
switches to assign endstations to different
virtual LANs,
and defines a standard way for VLANs to
communicate across switched networks.
IEEE 802.1p
An IEEE standard for providing
quality of service (QoS)
in Ethernet networks. The standard
uses packet tags that define up to
eight traffic classes
and allows switches to transmit packets based
on the tagged priority value.
Port Mirroring
A method whereby data on a target port is mirrored to a monitor port for troubleshooting with a
logic analyzer
or
RMON
probe. This allows data on the target port to be studied unobstructively.
Bandwidth Control
This function allows the network manager to control the maximum rate for
traffic transmitted
or received on an interface
. Rate limiting is configured on interfaces at the edge of a network to
limit traffic into or out of the network. Traffic that falls within the rate limit is transmitted, while
packets that exceed the acceptable amount of traffic are dropped.
