[etherlab-users] using EOE with more than one slave

[Juri Gerke]

Hello,

I have got some problems with EtherCAT master if there is more than one slave connected  which can use EOE.
With just one slave(EL6601) there are no problems. The master application is running at 2kHz and
 EOE frames are send every 100ms.  But if there is  a second EL6601 connected, that means I set
with: ifconfig eoe0a233 up, I am getting every time warnings about timed out and unmatched datagrams
if I just send one frame and receive two frames from a connected device.
If there is also a master application running, I get additional
warnings that the working counter is set from 27/27 to 0/27 and back to 27/27.

Here is my ifconfig output (similar as the post from Erwin Burgstaller 2010/10/20 )

eoe0a233  Link encap:Ethernet  Hardware Adresse 00:11:22:33:44:04
          inet Adresse:192.168.241.1  Bcast:192.168.241.255  Maske:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX packets:14 errors:571 dropped:0 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000
          RX bytes:2817 (2.7 KiB)  TX bytes:3046 (2.9 KiB)

eoe0a1006 Link encap:Ethernet  Hardware Adresse 00:11:22:33:44:05
          inet Adresse:192.168.242.1  Bcast:192.168.242.255  Maske:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX packets:10 errors:328 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000
          RX bytes:1926 (1.8 KiB)  TX bytes:1905 (1.8 KiB)

lo        Link encap:Lokale Schleife
          inet Adresse:127.0.0.1  Maske:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metrik:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:0
          RX bytes:560 (560.0 B)  TX bytes:560 (560.0 B)

And the output of route -n

Kernel-IP-Routentabelle
Ziel            Router          Genmask         Flags Metric Ref    Use Iface
192.168.241.0   0.0.0.0         255.255.255.0   U     0      0        0 eoe0a233
192.168.242.0   0.0.0.0         255.255.255.0   U     0      0        0 eoe0a1006

I also tried
Kernel-IP-Routentabelle
Ziel            Router          Genmask         Flags Metric Ref    Use Iface
192.168.241.121 192.168.241.1   255.255.255.255 UGH   0      0        0 eoe0a233
192.168.242.122 192.168.242.1   255.255.255.255 UGH   0      0        0 eoe0a1006

I have no clue if it's a problem of configuration or my way to send and receive UPD frames or something different.
So thanks for any hints.

Kind regards

Juri


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