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OpenVMS Hobbyist Program | Alpha Systems Forums | FreeAXP
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Author RE: Network issues with PersonalAlpha container

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Posts: 96
Location: Germany
Joined: 02.04.10
Posted on May 21 2010 04:28

you're running DECnet-OSI, so NCP is the wrong tool ! Use MC NCL SHOW ROUTING CIRCUIT * ALL to see the state of your routing circuit. I bet it's off, because the underlying CSMA-CD STATION is still set to use ESA0 (instead of EWA0). SDA> SHOW LAN will show the protocols active on your LAN device. Look for DECNETV and DECNET in the Client column ...

The fact that this node builds a cluster of it's own seems to indicate, that it does not see any cluster hello messages from another cluster node on the same LAN with the same cluster group number.

Check with SDA> SHOW LAN/COUNTER if the node is receiving any messages at all, this data is per protocol (i.e. SCS; DECNETV, ARP, IP etc.).

There is nothing like an 'OpenVMS PersonalAlpha image'. You can boot an OpenVMS system disk on ANY system of the correct architecture. You may need to adapt your configuration to the underlying hardware (or emulator). If you're clever enough, you can even do this with some IF F$GETDVI(...) statements dynamically during boot in SYLOGICALS.COM or SYSCONFIG.COM.

I can boot my OpenVMS .vdisk on my notebook with PersonalAlpha or FreeAXP alternatively and have a working environment (including an IP address received via DHCP).

So if you say your .vdisk works correctly with PersonalAlpha (using ESA0) and it doesn't work with FreeAXP (.271) (using EWA0), then you need to systematically troubleshoot the network stacks.

Author RE: Network issues with PersonalAlpha container

Posts: 21
Joined: 19.04.10
Posted on May 21 2010 23:00

Thanks for the info, it is well beyond my skill to trace in detail. I had hoped that I could pick up the image and run it under FreeAXP - clearly I can't without significant modification to cater for underlying network differences between PA and FreeAXP - no problem at all.

I guess that the best option would be to build clusters under either PA or FreeAXP and not try to "migrate" images from one to the other?

Author RE: Network issues with PersonalAlpha container
Bruce Claremont

Posts: 485
Joined: 07.01.10
Posted on May 22 2010 11:51
How about running NET$CONFIGURE.COM and rebuilding the DECnet configuration for EWA0. Be sure to shutdown TCP/IP services before initiating DECnet. Then run TCPIP$CONFIG.COM to set up TCP/IP services on EWA0.
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