For Arista Nodes, Interface Object Status is shows Unknown, admin status down and operational status is unknown

My Arista Node's interface operating Status as unknown, but its administratively Shutdown and the status is unknown.

When checked the Mibs I found the operstatus value is 6, which is Dormant, but on the node the interface status shows unknown,

when I do list resource it shows interface as Unknown,

Why is interface showing unknown form the time the node is getting added into monitoring?

Node Vendor: Arista.
NPM: 2023.3.0

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Accepted answers

NetDev_sol

As per Support, this case is considered for feature Enhancement and is still a feature request.

There is already a Feature Request for this, link below to up vote the request.

thwack.solarwinds.com/.../arista-interfaces-show-shutdown-status-versus-unknown

All comments

stuartd

Presumably the node in question is (or was) being monitored via SNMP and the interface prior to shutdown was being monitored OK.

You don't state what manufacturer and model the node is, but my best guess from the info provided is that it is a Cisco and that the IFIndex has changed. Either that, or the other possibilities are that it is a stack of switches and one of the stack has been removed (or gone offline), or it could be that the node has ben replaced. Whatever the actual cause, the DB will still have a record or this interface and IFIndex associated with this node but can no longer ratify that so presents it as unknown.

To remove the unknown, go to Manage Nodes and search out the node and expand it to show the interfaces. Tick next to the unknown and then delete.

NetDev_sol

Hi stuartd,

Thanks for the response, Node is Arista DCS-7050CX3-32S, Yes nodes are getting monitored by SNMP, few interfaces were getting monitored previously which was shut, but most of them are shut from the beginning. This state of interface is not with a single Node, it is same on all the nodes for Arista.
Here the ifoperstatus is 6, for all interface that shows unknown and even after going for the list resource, these interfaces appears again shows unknown.

Is it how the Arista Nodes updates the interfaces that are shut?

stuartd

I've never dealt with Arista before so can't answer. What I can say is with Cisco, they introduced a command in their OS to 'fix' the IFIndex years ago to overcome this very issue. Dells have the same problem but there is no way to 'fix' their indexes.

NetDev_sol

As per Support, this case is considered for feature Enhancement and is still a feature request.

There is already a Feature Request for this, link below to up vote the request.

thwack.solarwinds.com/.../arista-interfaces-show-shutdown-status-versus-unknown