[ericthegeek]

Gary, many of the people involved in writing the E1.37-2 document are at the ESTA CPWG standards meetings and Plugfest in Dallas right now, and your question kicked off an interesting discussion.

Then intent of INTERFACE_APPLY_CONFIGURATION is for it to act like the "Apply" button on an operating system. You can make as many changes as you want to the "Configured" values, but none of them will take effect until you send the APPLY PID.

(Edited to remove a mistake that was here previously)

I talked to several people who've implemented E1.37-2, and they said they ignore the priority list in section 3.5 and treat it as "last-action", so they use which mode was configured most recently (Static, DHCP, or ZeroConf).

> In such a case, is it acceptable not to implement these
> commands and if so, what is the appropriate response

You do not have to implement all of the PIDs. You can omit support for PIDs like DNS_HOSTNAME. Make sure those PIDs aren't included in your list of SUPPORTED_PARAMETERS, and NACK with NR_UNKNOWN_PID.