Wonder protocol

From: Tomohiro Nishikawa (biylgbf.vsds@mx.dy.fi)
Date: Tue Feb 25 2003 - 08:40:01 EET

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    Hello all,
    I found some wonder working on Linux2.4.20+libax25-0.0.10 and ax25-tool-0.0.9.

    ax3: fm JN3AOU to JK3TAJ ctl I41^ pid=F0(Text) len 240 14:43:50
    0000 .Some datas..............................................
    0040 .........................................................
    ax3: fm JN3AOU to JK3TAJ ctl I42+ pid=F0(Text) len 240 14:43:50
    0000..Some datas..............................................
    0040 .........................................................
    ax3: fm JK3TAJ to JN3AOU ctl RR2v 14:43:55
    ax3: fm JN3AOU to JK3TAJ ctl I43+ pid=F0(Text) len 240 14:43:55
    0000 ..........................................................
    0040 ..........................................................
    ax3: fm JK3TAJ to JN3AOU ctl REJ2- 14:43:58

    In AX.25 protocol,Frame(I43+) should not be sent after "RR2v" because
    JK3TAJ does not reply for "I42+" which have POLE(Marked Plus+).

    In this case on the other TNC,
    it remembers that frames until "I41" are sent sucessful and
    doesn't reply it.(sent RR4+ when t1_timeout of I42 is over.)

    Is this a common action?
    I am afraid that it makes "throughput" slow.

    I'm not programmer and sorry to write without skill.
    (I'm a student of school.)

    Best Regards,
    Tomohiro Nishikawa JN3AOU
    Sysop of JN3AOU-0(XFBB) and JN3AOU-9(DXSpider).
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