Added validation check for CSCwt58626 by muthu-ku · Pull Request #405 · datacenter/ACI-Pre-Upgrade-Validation-Script

muthu-ku · 2026-07-02T12:09:27Z

Added new validation for the defect CSCwt58626.

This check will check if the InfraVLAN overlaps with any user-configured VLAN pool range in Access Policies.

Apic failure logs:

 python aci-preupgrade-validation-script.py --tversion "6.1(3g)" -d "infravlan_overlap_access_policy_check"
    ==== 2026-07-23T04-58-29+0000, Script Version v4.2.0-dev  ====

!!!! Check https://github.com/datacenter/ACI-Pre-Upgrade-Validation-Script for Latest Release !!!!

To use a non-default Login Domain, enter apic#DOMAIN\\USERNAME
Enter username for APIC login          : admin
Enter password for corresponding User  :

Gathering Node Information...

Current APIC Version...6.0(9e)
Lowest Switch Version...6.0(9e)

Target APIC version is overridden to 6.1(3g)

Collecting VPC Node IDs...101, 102, 103, 104

Progress: |----------------------------------------------------------------------------------------------------| 0/1 checks cProgress: |████████████████████████████████████████████████████████████████████████████████████████████████████| 1/1 checks completed


=== Check Result (failed only) ===

[Check 1/1] InfraVLAN Overlap in Access Policy VLAN Pools...                                                      FAIL - UPGRADE FAILURE!!
  InfraVLAN  Encap Block             VLAN Pool DN
  ---------  -----------             ------------
  3301       vlan-10 to vlan-4093    uni/infra/vlanns-[infra-vlan-pool]-static/from-[vlan-10]-to-[vlan-4093]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-akhila1/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-ashok/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-ashok2/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-burh414/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-dci_cluster/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-deep421/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-depro1/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-dualstack/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-experimentk8slab/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-fwardzic1/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-k8s_scale53/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-k8sdragan/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-k8sfwardzic/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-k8srkesetup1/from-[vlan-3301]-to-[vlan-3301]
  3301       vlan-3301 to vlan-3301  uni/vmmp-VMware/dom-k8s-scale-vmm/usrcustomaggr-k8srkesetup2/from-[vlan-3301]-to-[vlan-3301]

  Recommended Action: Remove InfraVLAN from VLAN pool block highligted or upgrade to fix version
  Reference Document: https://datacenter.github.io/ACI-Pre-Upgrade-Validation-Script/validations/#infravlan-overlap-access-policy-check



=== Summary Result ===

PASS                        :  0
FAIL - OUTAGE WARNING!!     :  0
FAIL - UPGRADE FAILURE!!    :  1
MANUAL CHECK REQUIRED       :  0
POST UPGRADE CHECK REQUIRED :  0
N/A                         :  0
ERROR !!                    :  0
TOTAL                       :  1

    Pre-Upgrade Check Complete.
    Next Steps: Address all checks flagged as FAIL, ERROR or MANUAL CHECK REQUIRED

    Result output and debug info saved to below bundle for later reference.
    Attach this bundle to Cisco TAC SRs opened to address the flagged checks.

      Result Bundle: /data/techsupport/preupgrade_validator_2026-07-23T04-58-29+0000.tgz

==== Script Version v4.2.0-dev FIN ====

apic_failure_log.txt
apic_full_run_log.txt
pytest_full_run_log.txt

lovkeshsharma702

all intigrated test passed.

monrog2

Requesting changes for correctness against the current CSCwt58626 CDETS data and for fail-safe handling of APIC responses. Each concern is attached inline.

monrog2 · 2026-07-28T12:40:05Z

@lovkeshsharma702 try this way

monrog2

Requesting changes for the remaining CSCwt58626 correctness issues. The current CDETS release note now explicitly states the affected condition as 6.1.3f+ or 6.2.1g; the inline comments also cover preserving confirmed upgrade-failure evidence and completing inventory evaluation.

lovkeshsharma702 · 2026-07-28T12:49:32Z

@monrog2 please review the PR again. commented changes were completed and tested with successful integration test.

lovkeshsharma702 · 2026-07-29T12:14:10Z

@monrog2 please review the PR. commented part is taken care of.

monrog2

Requesting changes for the two remaining CSCwt58626 issues: preserve incomplete overlapping inventory evidence, and align remediation guidance with the current defect record.

lovkeshsharma702 · 2026-07-31T08:00:32Z

@monrog2 lets sync up today if anymore changes neede on this PR.

monrog2 · 2026-08-07T22:31:32Z

Integration test summary (identifying environment details omitted):

Six version-pair integration jobs ran against 22 configured environments.
All six jobs completed but failed overall because of existing validation findings, authentication/permission failures, or unrelated script errors.
32 runs completed without a script ERROR.
The InfraVLAN overlap check produced no ERROR outcomes.
Three InfraVLAN upgrade-blocking findings were detected across two environments, limited to the 6.1(4h) target. Environment names, VLAN IDs, and policy paths are intentionally omitted.

Version path	Clean completions	Timing range	Average
`5.2(4d) -> 5.2(8f)`	6	16-30s	22s
`5.2(4d) -> 6.0(2h)`	6	15-26s	18s
`5.2(6e) -> 6.0(5a)`	6	15-21s	18s
`5.2(8d) -> 6.1(1f)`	6	12-31s	18s
`5.3(2d) -> 6.1(4h)`	4	15-21s	18s
`6.0(2a) -> 6.1(4h)`	4	15-21s	18s

Overall clean-run timing was 12-31 seconds, averaging approximately 19 seconds.

Pytest validation also passed on both supported runtimes: 940 tests passed on Python 2.7 and Python 3.8, including 18/18 parametrized InfraVLAN overlap cases on each runtime.

Added validation check for CSCwt58626

8f68a28

lovkeshsharma702 suggested changes Jul 2, 2026

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muthu-ku added 4 commits July 3, 2026 06:28

updated comments

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resolved merge conflict

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updated merge conflict

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updated missing import for stale_dbgacEpgSummaryTask_check

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lovkeshsharma702 approved these changes Jul 3, 2026

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muthu-ku added 4 commits July 8, 2026 12:15

updated the review comments

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updated pytest case

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changed result for failure and error case

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updated the doc

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lovkeshsharma702 reviewed Jul 14, 2026

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updated the document comment

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updated comments

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lovkeshsharma702 approved these changes Jul 23, 2026

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lovkeshsharma702 suggested changes Jul 23, 2026

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Comment thread aci-preupgrade-validation-script.py Outdated

handled error cases

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This was referenced Jul 24, 2026

NewValidation: CSCwn64461 #367

Open

NewValidation: check if Infra VLAN is present in some Domains that will fail the deploy on EPG from 6.1 release #386

Closed

Added tversion missing check for other scripts

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monrog2 requested changes Jul 28, 2026

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updated the review comments

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lovkeshsharma702 approved these changes Jul 29, 2026

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updated the review comments

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lovkeshsharma702 approved these changes Jul 30, 2026

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updated script

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removed commented lines in pytest file

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lovkeshsharma702 approved these changes Jul 31, 2026

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Merge branch 'v4.2.0-dev' into CSCwt58626

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monrog2 merged commit 199cec6 into datacenter:v4.2.0-dev Aug 7, 2026
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