Werk #19470: NetApp ONTAP: fix crash for interfaces with no broadcast domain

Component	Checks & agents
Title	NetApp ONTAP: fix crash for interfaces with no broadcast domain
Date	Mar 30, 2026
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.6.0b1 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.5.0b4 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.4.0p26 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.3.0p47 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

Previously, the NetApp ONTAP LIF check could crash when an interface used the home_node_only failover policy and its port had no broadcast domain assigned. In that case the failover port list was empty or None, causing the error during processing.

This has been fixed. Additionally, for the failover policies default, broadcast_domain_only, and home_node_only, the check now explicitly reports CRIT with the message: Port has no broadcast domain assigned; failover group cannot be determined when no broadcast domain has been assigned.

This makes the misconfiguration visible instead of silently producing wrong or incomplete data. The home_port_only policy is not affected, as it targets the home port directly and does not rely on a broadcast domain.

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