Werk #19854: rmon_stats: treat empty SNMP counters as zero

Component

Checks & agents

Title

rmon_stats: treat empty SNMP counters as zero

Date

Apr 23, 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 Cloud, Checkmk Ultimate MT
2.5.0p1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The rmon_stats section parser crashed with ValueError: invalid literal for int() with base 10: '' if the SNMP agent returned an empty value for any of the eight packet-size counters. A single empty counter aborted parsing for the whole device, so no RMON services could be monitored.

Empty counter values are now treated as zero, keeping the rest of the counters intact.

To the list of all Werks