[App_rpt-users] Voter RTCM sometimes offline-mode but not when there is a telnet connection

Sat May 21 20:02:45 UTC 2016

Hi there,

Since November, we are trying to build a voting system.
We need some help please !

Hardware: 
Supermicro Intel Atom D525 (we also tried a RaspberryPi and an other computer)
Software: Since yesterday DIAL from Alllstar-Homepage (Before we tried it with ACID)
RTCM from Micro Node, Mark, we have 4 of them and tried all of them
Garmin GPS 18x LVC, also wie tried 4 of them.

Error: 
More or less often the RTCM switch in the offline mode. When there is traffic very often.
But not if at the same time there is a telnet connection from any computer to the  RTCM.

We suspect a networking problem between our asterisk-server and RTCM
Network-Card is set to 10 MB / s half-duplex like in the RTCM.

From  tcpdump from server to rtcm we got:

——— snip ----------

GPSTime (cli0_yy): 05/05/16 12:48:01.000000000
SysTime: 05/05/16 12:48:01.040000
DrainTime: 05/05/16 12:48:01.000
Got GPS (cli0_yy): Lat: 4857.60N, Lon: 00915.01E, Elev: 214.4
sending KEEPALIVE (GPS) packet to client cli2_bprx digest bbb4c643
GPSTime (cli2_bprx): 05/05/16 12:48:01.000000000
SysTime: 05/05/16 12:48:01.300000
DrainTime: 05/05/16 12:48:01.240
Got GPS (cli2_bprx): Lat: 4853.16N, Lon: 00912.65E, Elev: 317.2
sending KEEPALIVE (GPS) packet to client cli0_yy digest 79d9c77d
GPSTime (cli0_yy): 05/05/16 12:48:02.000000000
SysTime: 05/05/16 12:48:02.040000
DrainTime: 05/05/16 12:48:02.000
Got GPS (cli0_yy): Lat: 4857.60N, Lon: 00915.01E, Elev: 214.4
sending KEEPALIVE (GPS) packet to client cli2_bprx digest bbb4c643
[May 512:48:03]NOTICE[6559]:chan_voter.c:3632voter_reader:Voter

lost master timing source!!

sending packet challenge 200371797 digest 7749985d password BLAH sending packet challenge 200371797 digest 7749985d password BLAH sending packet challenge 200371797 digest bbb4c643 password BLAH GPSTime (cli2_bprx): 05/05/16 12:48:18.000000000

SysTime: 05/05/16 12:48:18.320000
DrainTime: 01/01/70 01:00:00.340
Got GPS (cli2_bprx): Lat: 4853.16N, Lon: 00912.65E, Elev: 317.2

-- Voter client cli0_yy disconnect (timeout)

sending KEEPALIVE (GPS) packet to client cli2_bprx digest bbb4c643

——— snip  ----------

Konfiguration of the Ethernet-Card

# ethtool eth0
Settings for eth0:
Supported ports: [TP]
Supported link modes: 10baseT / Half 10baseT / Full
100baseT / Half 100baseT / Full
1000baseT / Full
Supported break frame use: No
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised break frame use: No
Advertised auto-negotiation: No
Speed: 10Mb / s
Duplex: Half
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: off
MDI-X: off (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv sample link

Does anyone have an idea what it may be ?
Why there is no problem with telnet at the same time and how can we run the system without this workaround 

-- 
Rainer Bertsch
DF3SY

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