Madge Networks 802.11b Manuel d'utilisateur télécharger pdf (Page 36)

Extending Wireless Network…

• Each roaming station must be associated with a single

AP. This can be done:

– Via active scanning,

• The node sends a Probe frame

• All APs within the reach reply with a Probe Response

• The node select one AP and sends that AP an Association Request

• The AP replies with an Association Response frame

– In response to a beacon frame issued by the APs

• The APs broadcasts a beacon frame 10 to 100 times per second,

providing systems parameters, and giving opportunities to the

stations to sign up.

• The AP creates an association for this node and informs

other APs, only then can this node start sending and

receiving data

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Madge Networks 802.11b Manuel d'utilisateur Page 36