Hi all,
over the last few weeks, RTcfg has been improved a bit. It is now able to handle station failures with respect to both the clients and the server.
When I client fails to send a periodical heartbeat frame after it entered operation mode, the server will declare this station dead and will inform all others about it. Then the broken station can be restarted and will be reconfigured by the server. The server and the other clients will update their routing tables appropriately.
When a RTcfg server breaks down and is restarted afterwards, clients already running in the network will not need to go through the standard configuration phase again. Instead, configured clients can report this state to the server which in turn skips the usual configuration steps. This allows the restart or even replacement of an RTcfg server provided that the server's configuration is not changed.
RTcfg can furthermore assign IPs to clients when their MAC addresses are known. This opens the possibilty to use a single boot image for all clients, because the "individuality" can solely be distributed by RTcfg now. Using RTcfg without any IP addresses is also possible, but this has not been tested intensively (and RTnet cannot be used without the UDP/IP stack until now).
Another new feature of RTcfg is a verbose /proc interface for both server and client. Check out latest CVS and take a look at /proc/rtnet/rtcfg/<device>.
Unfortunately, many of these features are yet of minor usefulness because the current TDMA discipline requires a common restart after any failure. However, at least RTcfg is now ready for the future...
Jan
PS: I just noticed a potential minor issue: please don't try to change the IP address of a real-time NIC while communication is taking place. At least on our test system, this gives a nice oops.
PS: PS: Erwin, if you have a few free minutes: There is a new RTcfg frame, see RTcfg.spec. Could you update the Ethereal plugin?
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