[Dxspider-support] Inconsistent spots - long message

charlie carroll k1xx at cfl.rr.com
Sat Sep 1 04:24:47 CEST 2007 

Dirk:
I've been helping KB2SYD & N2KI track down a problem with missing 
spots.  What's strange is that they were inconsistently missing, without 
any discernible pattern.
Let me describe the problem by laying out some of the topology.

KB2SYD-5 >>> N2KI >>> K1EA
                        ^
                        ^
                       K1XX <<< WR3D

Some remote poking around looking at filter configurations and the usual 
culprits did little to uncover any problem.  At this point, I got KB2SYD 
to connect to me directly so that I'd better be able to look at data 
flows.  Right now we're connected as:

      N2KI >>> K1EA
                ^
                ^
  KB2SYD-5 >>> K1XX <<< WR3D

The versions of DXSpider for these 5 nodes are:

K1EA:    1.51 (build 57.206) on Linux
K1XX:    1.54 (build 0.120) on Linux
WR3D:    1.54 (build 0.129) on Linux
KB2SYD-5 1.54 (build 0.134) on MSWin32
N2KI:    1.54 (build 0.135) on MSWin32

One other thing to note before continuing.  I have an isolated 
connection between K1XX and WR3D

After a short period of debug monitoring, it was readily apparent that 
"occasional" spots coming into me (and N2KI in the initial 
configuration) were not being forwarded to KB2SYD-5.  And, as was 
initially speculated, hop count was not the source of the missing spots.

Here's an example of a normal spot being propagated through my node to 
others.

01:30:31 <- I K1EA PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H14^~
01:30:31 -> D KB2SYD-5 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D W1GQ PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D KC2CWT-9 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D VK3CNE-7 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D W1DX PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D NP3N PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D PY4VE-2 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D YO7JYL-10 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ 
^K3OO^K2UT^H13^~
01:30:31 -> D KB1H PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D KL7G PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D VE1CFB PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D VE7DQC-2 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D YV5KXE PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D K1ATA PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D WW1R-9 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D N1URO-3 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 -> D K1RK PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H13^~
01:30:31 <- I KL7G PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H12^~
01:30:31 <- I WR3D PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H11^~
01:30:32 <- I VK7HDM-2 PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H10^~
01:30:32 <- I YV5KXE PC11^14169.9^JT1F^ 1-Sep-2007^0130Z^ ^K3OO^K2UT^H10^~

Now, here's an example of a spot coming into K1XX and not being 
propagated to KB2SYD-5.

01:32:31 <- I WR3D PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H21^~
01:32:31 <- I YO7JYL-10 PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H22^~
01:32:32 <- I K1EA PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H21^~
01:32:32 <- I KL7G PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H4^~
01:32:32 <- I WW1R-9 PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H21^~
01:32:32 <- I PY4VE-2 PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H50^~
01:32:32 <- I KB1H PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H20^~
01:32:32 <- I VK3CNE-7 PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H22^~
01:32:32 <- I YV5KXE PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H19^~
01:32:32 <- I VK7HDM-2 PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H21^~
01:32:32 <- I VE1CFB PC11^7092.3^RT9W^01-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H48^~
01:32:32 <- I W1GQ PC11^7092.3^RT9W^ 1-Sep-2007^0134Z^AA 
Contest^DK0PM^DB0SUE-7^H20^~

Note the missing spot for SYD-5 as well as the shortened list of nodes 
to which the spot is sent.  Some additional monitoring finally started 
to show the following pattern!

01:34:40 <- I WR3D PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ ^VE3KAO^K0GND^H94^~
01:34:40 <- I K1EA PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ ^VE3KAO^K0GND^H96^~
01:34:41 <- I YO7JYL-10 PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ 
^VE3KAO^K0GND^H92^~
01:34:41 <- I KL7G PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ ^VE3KAO^K0GND^H4^~
01:34:41 <- I KB1H PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ ^VE3KAO^K0GND^H90^~
01:34:41 <- I WW1R-9 PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ 
^VE3KAO^K0GND^H88^~
01:34:41 <- I VK3CNE-7 PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ 
^VE3KAO^K0GND^H92^~
01:34:41 <- I PY4VE-2 PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ 
^VE3KAO^K0GND^H91^~
01:34:41 <- I VE1CFB PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ 
^VE3KAO^K0GND^H91^~
01:34:41 <- I W1GQ PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ ^VE3KAO^K0GND^H95^~
01:34:41 <- I YV5KXE PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ 
^VE3KAO^K0GND^H92^~
01:34:41 <- I VK7HDM-2 PC11^7040.0^KA0CT^01-Sep-2007^0134Z^ 
^VE3KAO^K0GND^H91^~

The root of all evil turned out to be spots from WR3D!  But why?  It 
finally dawned on me that this was the isolated connection.  So, I 
returned to a normal connection and voila, spots from WR3D no longer go 
missing.

01:38:05 <- I WR3D PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H94^~
01:38:05 -> D KB2SYD-5 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H93^~
01:38:05 -> D W1GQ PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D KC2CWT-9 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H93^~
01:38:05 -> D VK3CNE-7 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H93^~
01:38:05 -> D W1DX PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D K1EA PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D NP3N PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D PY4VE-2 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H93^~
01:38:05 -> D YO7JYL-10 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H93^~
01:38:05 -> D KB1H PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D KL7G PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D VE1CFB PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D VE7DQC-2 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H93^~
01:38:05 -> D YV5KXE PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D K1ATA PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D WW1R-9 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 -> D N1URO-3 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H93^~
01:38:05 -> D K1RK PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 <- I W1GQ PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H95^~
01:38:05 <- I K1EA PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H93^~
01:38:05 <- I YO7JYL-10 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H94^~
01:38:05 <- I KL7G PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ ^VE3KAO^K0GND^H95^~
01:38:06 <- I VK7HDM-2 PC11^7044.0^W4ZE^01-Sep-2007^0138Z^ 
^VE3KAO^K0GND^H92^~

The missing spot problem is easily re-producible each time I isolate the 
link to WR3D.  At this point, I'll toss this little gem into your lap 
and await any questions.

73 charlie, k1xx

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