Dear All, In light of research on WiFi I have run into quite some problems when it comes to the WiFi stack. I'm currently a student doing research for my Master Thesis and in this context I am trying to write a specification for a new Internet (Recurse InterNetworking Architecture, RINA). In this Master Thesis I'm writing I have a chapter on how his new Architecture should be handled over WiFi. For this I'm basing myself on the 802.11 IEEE standard (2012) for the MAC header and the 802.2 standard (1998) for the LLC header. Now I have run into an issue is that I cannot find any information on how the interaction between the LLC and MAC header is happening. Furthermore I seem to be unable to determine how SAP (both SSAP & DSAP) are assigned to interfaces. Furthermore is the use of QoS-cubes very confusing in this 802.11 standard and trying to map them seems a terribly complicated. For this new architecture we are planning on only using Type 1 operation of LLC, because this requires the non-ACKing mode. Even though Type 2 Operation seems more favorable because this actually provides data link connection. Due to the requirement of permanent ACKing of LLC PDUs this seems non favorable (especially since the sequence number is limited to 128). While I am aware that drivers (or hardware) transform these WiFi headers to general Ethernet (802.3) packets and present them as such to the kernel, this is a purely theoretical chapter and will not have any actual coding implication. At least not for a while... If any information on this could be provided, or any direction as to where to get this information, I would be very grateful. Kind regards, Mathieu Devos -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
