IfAlias/IfDescr missing turn off monitoring for these interfaces

[ognjen]

Hi everyone,

I am looking to disable all interfaces from discovery and monitoring unless they have IfAlias set as a default behaviour for all devices. How do i accomplish this? I have been looking through the templates and haven't found a place where i can have this custom setting. I did google it for a while but have not seen this in any discussion. Can anyone point me in the right direction?

[Engraf]

If you are using SNMP agent,
then there is discovery rule "Network Interfaces Discovery" in the official template "Template Net Network Generic Device SNMPv2" that has discovering macros {#IFALIAS}, {#IFDESCR} (among others).
So, you can use them for filtering discoverable items (i.e. {#IFALIAS} matches \w+ )

[ognjen]

Ok then second question that follows this, if i make the change now and already have a bunch of devices will server stop polling for interfaces without ifAlias or will it require a manual clean or a rediscovery will basically get rid of other interfaces?

[Engraf]

I don't sure, but It seems that this does not affect the already discovered items. So you need to delete them manually.