Increase rtt-decay factor to match our higher hello interval

256 * (1 - (1-42/256.)**(15/4.)) ≈ 125
where:
- 42 is default rtt-decay
- 4 is default hello in babeld
- 15 is default hello in re6st

re6st/plib.py

@@ -58,7 +58,7 @@ def router(subnet, hello_interval, table, log_path, state_path, pidfile,
             '-S', state_path,
             '-I', pidfile,
             '-s',
-            '-C', 'default max-rtt-penalty 5000 rtt-max 500',
+            '-C', 'default max-rtt-penalty 5000 rtt-max 500 rtt-decay 125',
             '-C', 'redistribute local deny',
             '-C', 'redistribute ip %s/%u eq %u' % (s, n, n),
             '-C', 'redistribute deny']