Tp-link TL-SG3109 Bedienungsanleitung PDF herunterladen (Seite 112)

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Term Denition

Backplane The main BUS that carries information in the device.

Bandwidth

Species the amount of data that can be transmitted in a xed amount of time. For digital

devices, bandwidth is dened in Bits per Second (bps) or Bytes per Second.

Bandwidth Assignment

Indicates the amount of bandwidth assigned to a specic application, user, and/or interface.

Baud Indicates the number of signaling elements transmitted each second.

Best Effort

Indicates that trafc is assigned to the lowest priority queue, and packet delivery is not guaranteed.

BGP

Border Gateway Protocol. Enables information sharing, routing information between

groups of routers.

Boot Version Indicates the boot version.

BootP

Bootstrap Protocol. Enables a workstation to discover its IP address, an IP address of a

BootP server on a network, or a conguration le loaded into the boot of a device.

BPDU

Bridge Protocol Data Unit. Provide bridging information in a message format. BPDUs

are sent across switch information with in Spanning Tree conguration. BPDU packets

contain information on ports, addresses, priorities, and forwarding costs.

Bridge

A device that connects two networks. Bridges are hardware-specic, however they are

protocol-independent. Bridges operate at Layer 1 and Layer 2 levels.

Broadcast Domain

Device sets that receive broadcast frames originating from any device within a designated

set. Routers bind broadcast domains, because routers do not forward broadcast frames.

Broadcast Storm

An excessive amount of broadcast messages simultaneously transmitted across a

network by a single port. Forwarded message responses are heaped onto the network,

overloading network resources or causing the network to time out.

Broadcasting A method of transmitting packets to all ports on a network.

Burst

A packet transmission at faster than normal rates. Bursts are limited in time and only

occur under specic conditions.

Burst Size Indicates the burst size transmitted at a faster than normal rate.

CBS

Committed Burst Size. Indicates the maximum number of data bits transmitted within a

specic time interval.

CDB Conguration Data Base. A le containing a device’s conguration information.

CIDR

Classless Interdomain Routing. Based on route aggregation. Routers group routes

together, and reduce the amount of routing information carried by the core routers.

Several IP networks appear to networks outside the group as a single, larger entity.

CIR

Committed Information Rate. Indicates the rate (Bps) that data is transmitted using frame

relay services (FRS). The rate is averaged over a minimum time increment.

Class Map

An aspect of Quality of Service system that is comprised of an IP ACL and/or a MAC

ACL. Class maps are congured to match packet criteria, and are matched to packets in

a rst-t fashion.

Class of Service

Class of Service (CoS). The 802.1p priority scheme. CoS provides a method for tagging

packets with priority information. A CoS value between 0-7 is added to the Layer II header

of packets, where zero is the lowest priority and seven is the highest.

Classless Inter-Domain

Routing

Creates new addresses on the internet. The new addresses are distributed to ISPs for

their customers’ use. CIDR reduces the Internet routers’ burden by combining routes.

One IP address represents thousands of addresses serviced by a major backbone

provider.

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