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AX.25

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Revision as of 07:20, 21 March 2011 by Drwho (talk | contribs) (Created page with "*OSI layer 2 (data link layer) protocol. Technically, it occupies layers 1-3. *Same layer as BATMAN-Advanced. *Used for packet radio by hams. *Can transport network layer protoc...")
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  • OSI layer 2 (data link layer) protocol. Technically, it occupies layers 1-3.
  • Same layer as BATMAN-Advanced.
  • Used for packet radio by hams.
  • Can transport network layer protocols.
  • Not designed to support switching, though routers can probably be set up to handle it.
  • Support in the Linux kernel.
    • v2.6.x: ax25.ko
  • Commonly used with three different communication specs:
    • Bell 103 tones @ 300bps
    • Bell 202 tones @ 1200bps
    • G3RUH DFSK @ 9600bps
    • These speeds are hard limits.
  • KISS encapsulates frames such that they can be send to a TNC for transmission. Derived from SLIP.
  • KISS is a serial protocol. Thus, multiple serial channels are required for multiple transceivers.
  • Other protocols fulfill the same function.

Wikipedia: AX.25