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prefs is 5 char length :nerd:
And use attempt to progressively wait longer. Currently we only wait 3-4 hops of airtime. When destination is 10-20 hops away we send 3 flood messages before the first one will have a chance of arriving.
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Increase base timeout constants and scale flood timeouts by attempt number.
Problem
The flood timeout (
500ms + 16× airtime) only covers ~3-4 hop round trips. Each forwarding node adds ~airtime + random(0-5)×airtime/2 delay, so a 10-20 hop destination needs 15-31 seconds round trip — but the timeout fires after ~6s, causing premature retries that add congestion and make subsequent attempts even less likely to succeed.Changes
Increased base constants:
SEND_TIMEOUT_BASE_MILLIS: 500 → 1000FLOOD_SEND_TIMEOUT_FACTOR: 16 → 32DIRECT_SEND_PERHOP_FACTOR: 6 → 10DIRECT_SEND_PERHOP_EXTRA_MILLIS: 250 → 500Attempt-based scaling for flood timeouts:
base_timeout × (attempt + 1)For a typical 345ms airtime packet (29B, SF8, BW62.5kHz, CR4/8):
Only
sendMessageandsendCommandDatapassattempt— other send functions (login, anon req, contact request) default toattempt=0, no behavior change.Build firmware: Build from this branch
Mirror of meshcore-dev#1691