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TN211-18.DOC
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1993-08-09
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TN211_18.DOC
ROUTING LOOPS
*****************
When TheNet receives a command instruction to connect to a destination
node, it will attempt to set up a circuit via the path it has determined has
the highest path quality listing. If this results in a timed out connection,
it then will attempt a connect via the next best route. If this attempt also
fails, the node will attempt a third path if one is listed.
Sometimes a primary route may experience temporary failure. A node
receiver down the line may be subject to interference or desensitization for
a period. If this occurs while a connect request is in progress, its possible
the local node will time the circuit out and attempt a connect on the next best
route listed. If after a time an unusual delay is noted in having the connect
request processed, disconnect. Then, reconnect to the local node and do an
"N <destination nodecall>" command. (Where destination nodecall is the alias
of the destination node one just attempted a connect to).
Notice the position of the activity arrow on the resultant response.
Chances are, the activity arrow will show an attempt is being made via a
"routing loop" path. A path that has a "0" path quality, or perhaps to a path
that leads elsewhere. As long as the activity arrow is pointing to an
unconnectable path, there is little one can do but wait until the internal
timer "resets" (usually 15 minutes following the last connect request for that
particular node). Then if the circuit is clear, one should be able to make a
connect via the primary path.