Hi! Alex, see inline on your comments. Another thing, you had an earlier comment: "I would like to see a YANG feature for past status changes, or perhaps this part moved to a separate module augmenting ietf-alarms.” Just to make sure I get your comment correctly. Are you saying that you would like the alarm/status-change list to be a YANG feature to indicate “optionality"
list status-change { if-feature alarm-status-changes; <<<<< key time; > > Alex Campbell <alex.campb...@aviatnet.com> wrote: >> Hi, >> >> alarm-list holds a list of raised and cleared alarms (but not those >> that have never been raised). >> alarm-inventory holds a list of all possible alarm _types_. >> If alarm-inventory were to hold a list of all possible alarms, that >> would indeed resolve my concern. (It would be equivalent to our >> all-alarms list) > > But this only works for devices where you can (statically?) enumerate > *all* resources that possibly could be in an alarm state! This does > not seem very scalable to me. Or did I miss something in your > descripition? > >>> But other things than entities can have alarms. AND >>> instance-identifers are not “free-form”. It is a strange limitation to >>> limit alarms to the entity-model >> I agree; however, it has the nice effects that it is possible to >> enumerate all resources So, we could consider the alarm-inventory to have an additional leaf “resource”. I think that would resolve your issue? Of course not all systems know that, but for those that do, this helps a lot, I agree. I see that go well with another relevant comment you had that the alarm-inventory should have a requirement that it needs to be updated when new cards are inserted for example. We might even add a notif for alarm-inventory changes. > On 11 Oct 2016, at 08:42, Martin Bjorklund <m...@tail-f.com> wrote: > > See above. > >> and also that the resources and their >> associated alarms form a hierarchy which can be visually displayed - >> an operator can expand a tree to get progressively more detail on the >> device status. >> The top level of the tree shows "device has problems"; the next level >> shows "line card 3 has problems"; the next level shows "Interface 3/2 >> has problems"; the next level shows "Interface 3/2 has no media". >> However, I think the concepts of root cause resources and impacted >> resources are more useful than this hierarchy. > > Why wouldn't this be possible with the model we propose? I think you are talking about a very useful application in the management system. This does not mean the exact same view need to available in the alarm interface. > > > > /martin _______________________________________________ netmod mailing list netmod@ietf.org https://www.ietf.org/mailman/listinfo/netmod