Is the RTCM and the server on the same Ethernet LAN at the same location? Are you using an Ethernet switch or a hub? If you are using a switch then why are you not running everything full duplex? On Sat, May 21, 2016 at 3:02 PM, info@rainerbertsch.de < info@rainerbertsch.de> wrote:

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 BertschDF3SY

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