Werk #11267: if_fortigate: Use ifName as ifAlias
| Komponente | Checks und Agenten |
| Titel | if_fortigate: Use ifName as ifAlias |
| Datum | 03.09.2020 |
| Checkmk-Editon | Checkmk Raw (CRE) |
| Checkmk-Version | 2.0.0i1 |
| Level | Kleine Änderung |
| Klasse | Bugfix |
| Kompatibilität | Inkompatibel - Manuelle Interaktion könnte erforderlich sein |
The original check plugin {{if_fortigate}} uses the {{ifName}} under the guise of {{ifAlias}} because on Fortigate devices the {{ifName}} contains the technical interface names. By contrast {{ifDescr}} or {{ifAlias}} may contain user defined names.
In the ruleset {{Network Interface and Switch Port Discovery}} under {{Appearance of network interface}} the item can be specified: Either use the {{Use index}}, {{Use description}} or {{Use alias}}.
With the incompatible werk 6638 the {{ifName}} was substituted with {{ifAlias}}. This means that the technical interface names are not available any more. This werk reverts the check plugin back to its original state: use {{ifName}} as {{ifAlias}} in order to make these technical names available again.
We cannot simply add another SNMP field because this may cause unforeseen performance loss.
In the future we have to find a performant solution to make the following four SNMP fields available for item names: {{ifIndex}}, {{ifName}}, {{ifDescr}} and {{ifAlias}}.
Thus if you have configure {{Use alias}} in the ruleset {{Network Interface and Switch Port Discovery}} under {{Appearance of network interface}} on Fortigate devices you have to rediscover these hosts.
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