[App_rpt-users] RTCM Inbound (Eth Rx) packet out of bounds

Lee Woldanski ve7fet at tparc.org
Sat Sep 23 21:27:13 EDT 2017

Have you quantified your network parameters and set your buffers using the
tuning procedure?


Where is your asterisk/allstar server, in relation to your MASTER site? Per
the votersystem.pdf:

There must be a VOTER (RTCM) board on the same LAN (very low latency) as
the Asterisk server
implementing the “master site”, which acts as the Master Timing source.
This allows chan_voter to
have a consistent, reliable, accurate timing source with which the timing
information from all other
inbound packets are compared and appropriately processed, and from which to
generate accurate
timing information for time-consistent transmission purposes.



On Sat, Sep 23, 2017 at 5:41 PM, Hayden Honeywood <haydenph91 at gmail.com>

> More testing last night and today.
> I set the TX Buffer to 1200 last night, rebooted both RTCM units and it
> was working fine last night.
> Switched off one of the sites (at home) overnight. Came back this morning,
> powered up and getting the packet out of bounds issues again. Changed up to
> 1600 and rebooted both units, worked again. buflen set to 250.
> Is it just a matter of increasing these up and up until it's stable even
> after a power reset?
> I've been swapping out ethernet cables too just checking to make sure that
> is not the issue... Could still be a hardware problem. Next thing to change
> is the port from 667 to make sure there is no limiting down at the ISP
> level.
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Lee Woldanski, AScT
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