Ap-local dynamic switching

H - Electricity – 04 – W

Patent

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H04W 88/08 (2009.01) H04W 80/02 (2009.01)

Patent

CA 2654827

A technique for implementing AP -local dynamic switching involves Layer 2 switching. This may be accomplished by providing data associated with wireless stations to an AP sufficient to enable the AP to determine whether traffic from a particular wireless station should be locally switched. Alternatively, the wireless station may be able to determine whether to locally switch traffic based upon the traffic itself. For example, it may be desirable to AP-locally switch voice traffic to avoid latency, which is particularly detrimental to voice transmissions such as voice-over- IP. Traffic that is not to be switched locally is Layer 2 tunneled upstream.

L'invention concerne une technique pour mettre en AEuvre une commutation dynamique locale au point d'accès (PA) qui implique une commutation de couche 2. Ceci peut être réalisé en transmettant suffisamment de données associées aux stations sans fil à un PA pour permettre au PA de déterminer si le trafic depuis une station sans fil particulière devrait être commuté localement. En variante, la station sans fil peut être capable de déterminer s'il faut commuter localement le trafic en fonction du trafic lui-même. Par exemple, il peut être souhaitable de commuter localement au PA le trafic vocal pour éviter un temps d'attente, ce qui est particulièrement préjudiciable aux transmissions vocales telles que la voix sur IP. Le trafic qui ne doit pas être commuté localement est la couche 2 tunnelée en amont.

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