> On Jul 19, 2018, at 11:18 PM, Hunter Goatley <[email protected]> wrote:
>
> Another data point. After more playing around and several reboots, I can
> confirm that with tunneling using the host system's Ethernet device,
> communications with other cluster members only drops when DECnet is started.
> %%%%%%%%%%% OPCOM 19-JUL-2018 23:14:55.58 %%%%%%%%%%%
> Message from user DECNET on DARTH
> DECnet starting
>
> %CNXMAN, lost connection to system QUEST
> %CNXMAN, lost connection to system GALAXY
> %CNXMAN, re-established connection to system FASTER
> %CNXMAN, quorum lost, blocking activity
> %CNXMAN, re-established connection to system VADER
> %CNXMAN, re-established connection to system QUEST
> %CNXMAN, quorum regained, resuming activity
>
> That's not a full log, but as soon as I see the OPCOM message about DECnet
> starting, I get the "lost connection" messages, then the "re-established"
> messages, and then everything is fine afterward.
Is that the Ethernet interface down/up that happens when DECnet sets the MAC
address? I assume you don't have a card that supports multiple MAC addresses.
On the USB thing: USB bridge things are often consumer grade devices, and while
they may "work" in the sense that you can get a packet in and out, I would not
necessarily expect them to behave sanely under any nontrivial load. The same
way I would not expect to run a cluster on a $50 Ethernet switch.
Good to hear things are looking better now.
paul
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