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Bug 2117485

Summary: Apply linux bridge STP setting even STP disabled
Product: Red Hat Enterprise Linux 8 Reporter: Gris Ge <fge>
Component: nmstateAssignee: Gris Ge <fge>
Status: CLOSED WONTFIX QA Contact: Mingyu Shi <mshi>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 8.8CC: ferferna, jiji, jishi, mburman, mperina, mshi, network-qe, sfaye, till
Target Milestone: rcKeywords: Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 2117482 Environment:
Last Closed: 2022-09-20 08:26:57 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2117482    
Bug Blocks: 2116119    

Description Gris Ge 2022-08-11 06:48:30 UTC
+++ This bug was initially created as a clone of Bug #2117482 +++

Description of problem:

Nmstate currently is ignoring STP settings when STP is disabled. We should raise an warning for state like:

```
      stp:
        enabled: false
        forward-delay: 15
        hello-time: 2
        max-age: 20
        priority: 32768
```

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:

Nmstate is silently ignoring STP settings after STP disabled.

Expected results:

An warning message indicate nmstate is ignoring the changes to STP setting when STP disabled.

Additional info:

Comment 2 Gris Ge 2022-09-14 10:16:26 UTC
RHV use case require nmstate to apply the STP setting regardless it is enabled or not. Since kernel allows so and no harm to other user.

Changing the goal of this bug to apply STP settings even disabled.

Comment 3 Gris Ge 2022-09-14 10:39:41 UTC
RHEL 8.6 backport scratch build could be found at https://people.redhat.com/fge/bz_2117485/

Comment 4 Gris Ge 2022-09-14 10:44:32 UTC
Patch sent to upstream: https://github.com/nmstate/nmstate/pull/2036

Comment 5 Gris Ge 2022-09-19 06:33:15 UTC
Even with nmstate allowing setting STP options with disabled STP, NetworkManager `ifcfg-rh` format connection will reject it. The `keyfile` format works well.

Waiting RHV team decision on action plan.

Comment 6 Gris Ge 2022-09-19 06:35:11 UTC
The NetworkManager has explicit check against this use case:


        if (m[i].only_with_stp && !stp) {
            PARSE_WARNING("'%s' invalid when STP is disabled", key);
            return;
        }


Just FYI.

Comment 7 Gris Ge 2022-09-20 08:26:57 UTC
RHV decided not to pursue this use case any more due to limitation in NetworkManager ifcfg.

This use case works well in RHEL 9.1 where NetworkManager is defaulting keyfile storage and nmstate rust is applying STP settings regardless STP status.

Closing as won't fix.