[evla-sw-discuss] An "In Use" flag for the MIB interface

Ken Sowinski ksowinsk at nrao.edu
Tue Aug 15 19:56:39 EDT 2006


On Tue, 15 Aug 2006, Bill Sahr wrote:

> The "In use" flag, a proposal:

> - Once a MIB is locked, any set commands received via the UDP port
> that do not originate from the IP address used to set the lock will
> be ignored.  However, get commands received via the UDP port will
> be processed regardless of the originating IP address or the state
> of the lock.

This mean a random user will not be able to modify the s-stream
data rate for any monitor point.  Barry once suggested that this
mechanism should only prevent a set of the 'value' attribute of
a command point.  That leaves us a lot of flexibility to modify
data rates, alarm thresholds or enables and all that useful stuff.
This is likely to be a more complex implementation, but I think the
effort will be well repaid.

> - On reboot, the MIB will initialize in the unlocked state.
>
> - The analogous statements apply for the virtual antennas presented
> by the CMP:

I think this addresses Walter's question; or have I misunderstood?


Ken




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