[JDEV] Getting lotsa ACKs from jabber.org
Jesper L. Nielsen
lyager at phunkbros.dk
Sun Mar 30 12:27:47 CST 2003
I've noticed that the jabber client I use, after a while, recieves a lot
of ACK packages. The packages themselves contain a different number of
empty spaces, usually ranging from 1-10 spaces.
In other words, the packages contain no XML.
Any what these packages are, and how is my client supposed to answer the
packages?
Client is CenterICQ running on Debian/Linux kernel 2.4.20.
A small cutout of the tcpdump:
20:26:27.481882 herc.jabber.org.jabber-client > home.phunkbros.dk.32899: P 69830957:69830960(3) ack 72879763 win 6432 <nop,nop,timestamp 1197341652 159636> (DF)
0x0000 4500 0037 c381 4000 2f06 2133 d0f5 d46c E..7.. at ./.!3...l
0x0010 c0a8 0102 1466 8083 0429 892d 0458 0e93 .....f...).-.X..
0x0020 8018 1920 ce71 0000 0101 080a 475d fbd4 .....q......G]..
0x0030 0002 6f94 2020 20 ..o....
20:26:27.482004 home.phunkbros.dk.32899 > herc.jabber.org.jabber-client: . ack 3 win 7720 <nop,nop,timestamp 159652 1197341652> (DF)
0x0000 4500 0034 5e35 4000 4006 7582 c0a8 0102 E..4^5 at .@.u.....
0x0010 d0f5 d46c 8083 1466 0458 0e93 0429 8930 ...l...f.X...).0
0x0020 8010 1e28 0982 0000 0101 080a 0002 6fa4 ...(..........o.
0x0030 475d fbd4 G]..
20:26:27.639919 herc.jabber.org.jabber-client > home.phunkbros.dk.32899: P 3:7(4) ack 1 win 6432 <nop,nop,timestamp 1197341668 159652> (DF)
0x0000 4500 0038 c382 4000 2f06 2131 d0f5 d46c E..8.. at ./.!1...l
0x0010 c0a8 0102 1466 8083 0429 8930 0458 0e93 .....f...).0.X..
0x0020 8018 1920 ce2d 0000 0101 080a 475d fbe4 .....-......G]..
0x0030 0002 6fa4 2020 2020 ..o.....
20:26:27.640103 home.phunkbros.dk.32899 > herc.jabber.org.jabber-client: . ack 7 win 7720 <nop,nop,timestamp 159668 1197341668> (DF)
0x0000 4500 0034 5e36 4000 4006 7581 c0a8 0102 E..4^6 at .@.u.....
0x0010 d0f5 d46c 8083 1466 0458 0e93 0429 8934 ...l...f.X...).4
0x0020 8010 1e28 095e 0000 0101 080a 0002 6fb4 ...(.^........o.
0x0030 475d fbe4 G]..
20:26:27.801312 herc.jabber.org.jabber-client > home.phunkbros.dk.32899: P 7:12(5) ack 1 win 6432 <nop,nop,timestamp 1197341684 159668> (DF)
0x0000 4500 0039 c383 4000 2f06 212f d0f5 d46c E..9.. at ./.!/...l
0x0010 c0a8 0102 1466 8083 0429 8934 0458 0e93 .....f...).4.X..
0x0020 8018 1920 ae08 0000 0101 080a 475d fbf4 ............G]..
0x0030 0002 6fb4 2020 2020 20 ..o......
20:26:27.801430 home.phunkbros.dk.32899 > herc.jabber.org.jabber-client: . ack 12 win 7720 <nop,nop,timestamp 159684 1197341684> (DF)
0x0000 4500 0034 5e37 4000 4006 7580 c0a8 0102 E..4^7 at .@.u.....
0x0010 d0f5 d46c 8083 1466 0458 0e93 0429 8939 ...l...f.X...).9
0x0020 8010 1e28 0939 0000 0101 080a 0002 6fc4 ...(.9........o.
0x0030 475d fbf4 G]..
20:26:27.965370 herc.jabber.org.jabber-client > home.phunkbros.dk.32899: P 12:15(3) ack 1 win 6432 <nop,nop,timestamp 1197341700 159684> (DF)
0x0000 4500 0037 c384 4000 2f06 2130 d0f5 d46c E..7.. at ./.!0...l
0x0010 c0a8 0102 1466 8083 0429 8939 0458 0e93 .....f...).9.X..
0x0020 8018 1920 ce05 0000 0101 080a 475d fc04 ............G]..
0x0030 0002 6fc4 2020 20 ..o....
20:26:27.965498 home.phunkbros.dk.32899 > herc.jabber.org.jabber-client: . ack 15 win 7720 <nop,nop,timestamp 159700 1197341700> (DF)
0x0000 4500 0034 5e38 4000 4006 757f c0a8 0102 E..4^8 at .@.u.....
0x0010 d0f5 d46c 8083 1466 0458 0e93 0429 893c ...l...f.X...).<
0x0020 8010 1e28 0916 0000 0101 080a 0002 6fd4 ...(..........o.
0x0030 475d fc04 G]..
20:26:28.121264 herc.jabber.org.jabber-client > home.phunkbros.dk.32899: P 15:20(5) ack 1 win 6432 <nop,nop,timestamp 1197341716 159700> (DF)
0x0000 4500 0039 c385 4000 2f06 212d d0f5 d46c E..9.. at ./.!-...l
0x0010 c0a8 0102 1466 8083 0429 893c 0458 0e93 .....f...).<.X..
0x0020 8018 1920 adc0 0000 0101 080a 475d fc14 ............G]..
0x0030 0002 6fd4 2020 2020 20 ..o......
20:26:28.121401 home.phunkbros.dk.32899 > herc.jabber.org.jabber-client: . ack 20 win 7720 <nop,nop,timestamp 159716 1197341716> (DF)
0x0000 4500 0034 5e39 4000 4006 757e c0a8 0102 E..4^9 at .@.u~....
0x0010 d0f5 d46c 8083 1466 0458 0e93 0429 8941 ...l...f.X...).A
0x0020 8010 1e28 08f1 0000 0101 080a 0002 6fe4 ...(..........o.
0x0030 475d fc14 G]..
20:26:28.280488 herc.jabber.org.jabber-client > home.phunkbros.dk.32899: P 20:24(4) ack 1 win 6432 <nop,nop,timestamp 1197341732 159716> (DF)
0x0000 4500 0038 c386 4000 2f06 212d d0f5 d46c E..8.. at ./.!-...l
0x0010 c0a8 0102 1466 8083 0429 8941 0458 0e93 .....f...).A.X..
0x0020 8018 1920 cd9c 0000 0101 080a 475d fc24 ............G].$
0x0030 0002 6fe4 2020 2020 ..o.....
20:26:28.280650 home.phunkbros.dk.32899 > herc.jabber.org.jabber-client: . ack 24 win 7720 <nop,nop,timestamp 159732 1197341732> (DF)
0x0000 4500 0034 5e3a 4000 4006 757d c0a8 0102 E..4^:@. at .u}....
0x0010 d0f5 d46c 8083 1466 0458 0e93 0429 8945 ...l...f.X...).E
0x0020 8010 1e28 08cd 0000 0101 080a 0002 6ff4 ...(..........o.
0x0030 475d fc24 G].$
--
Jesper L. Nielsen
http://phunkbros.dk
More information about the JDev
mailing list