Clarion M10 Series Bedienungsanleitung PDF herunterladen (Seite 10)

C-SPEC CORPORATION WIRELESS PRODUCTS

ROUTERS

All routers normally support an AUI port which can be used to connect the

MerLAN M10 unit via a standard AUI cable. Connecting the MerLAN M10

to routers presents no inherent problems even though many workstations can

be transmitting packets to the routers. A router encapsulates the original

ethernet message with a new ethernet destination (another router) and itself

as the source address and sends the message directly to another router

thereby presenting only a single ethernet source address to the MerLAN M10

which it adopts and can use for acknowledgments for the re-transmission

protocol. The default configuration parameters should be used when the

MerLAN M10 is connected to a router.

BRIDGES AND HUBS

Connecting the MerLAN M10 directly to a bridge or hub can also be done by

means of a standard AUI cable. If there are only 10Base-T connections on the

hub, a 10Base-T to AUI media converter can be used. The physical

connection of a bridge or hub to the MerLAN M10 is not a problem, but this

scenario presents a situation that can impact performance issues based upon

the actual communication topology trying to be supported. Remember that

the MerLAN M10 derives its RF address from the first ethernet message it

receives from the MAU connection and that address is used to generate and

validate acknowledgments. Since there are several devices generally

connected to a bridge or hub, the source address in the ethernet messages is

constantly changing creating a problem for the MerLAN M10 in the

generation and validation of acknowledgments. In these particular cases,

please read Supported Network Configurations later in this document to

determine how the MerLAN M10 should be configured for your site’s

particular network topology.

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Clarion M10 Series Bedienungsanleitung Seite 10