Werk #18764: brocade_info: find the switch model when its entity index is not 1

Component

Checks & agents

Title

brocade_info: find the switch model when its entity index is not 1

Date

Sep 15, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p15 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p37 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The Brocade Info service read the switch model from the ENTITY-MIB at the fixed instance entPhysicalDescr.1. RFC 4133 leaves entPhysicalIndex arbitrary, so on switches that place their chassis at another index the model was reported as -.

The description column is now walked and the entity with the lowest index is used. It is also no longer re-read on every check cycle, since the model of a switch does not change.

Switches that report entPhysicalDescr.1 are unaffected. Switches that expose the description at another index now show the model. Switches that do not expose the ENTITY-MIB at all continue to show -; on Fabric OS this MIB can be enabled with snmpconfig.

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