Remove EMS LIF service from network service policies

07/09/2024 Contributors

If you have Event Management System (EMS) messages set up before you upgrade from ONTAP 9.7 or earlier to ONTAP 9.8 or later , after the upgrade, your EMS messages might not be delivered.

During the upgrade, management-ems, which is the EMS LIF service, is added to all existing service polices. This allows EMS messages to be sent from any of the LIFs associated with any of the service polices. If the selected LIF does not have reachability to the event notification destination, the message is not delivered.

To prevent this, after the upgrade, you should remove the EMS LIF service from the network service polices that do not provide reachability to the destination.

Steps

Identify the LIFs and associated network service polices through which EMS messages can be sent:

network interface show -fields service-policy -services management-ems

vserver        lif            service-policy
-------------- ------------ ------------------
cluster-1      cluster_mgmt
                                      default-management
cluster-1      node1-mgmt
                                      default-management
cluster-1      node2-mgmt
                                      default-management
cluster-1      inter_cluster
                                      default-intercluster
4 entries were displayed.

Check each LIF for connectivity to the EMS destination:

network ping -lif <lif_name> -vserver <svm_name> -destination <destination_address>

Perform this on each node.

Examples

cluster-1::> network ping -lif node1-mgmt -vserver cluster-1 -destination 10.10.10.10
10.10.10.10 is alive

cluster-1::> network ping -lif inter_cluster -vserver cluster-1 -destination 10.10.10.10
no answer from 10.10.10.10

Enter advanced privilege level:
```
set advanced
```

For the LIFs that do not have reachability, remove the management-ems LIF service from the corresponding service polices:

network interface service-policy remove-service -vserver <svm_name> -policy <service_policy_name> -service management-ems

Verify that the management-ems LIF is now only associated with the LIFs that provide reachability to the EMS destination:
```
network interface show -fields service-policy -services management-ems
```

Remove EMS LIF service from network service policies

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