Field Notice: FN - 72340 - After an Upgrade, the Leaf Switch Brings Up Ports Before the Policies are Programmed - Software Upgrade Recommended

Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision	Publish Date	Comments
1.0	23-May-22	Initial Release

Products Affected

Affected OS Type	Affected Software Product	Affected Release	Affected Release Number	Comments
NON-IOS	NX-OS System Software-ACI	14.1	14.1(2g), 14.1(2m), 14.1(2o), 14.1(2s)
NON-IOS	NX-OS System Software-ACI	14.2	14.2(1i), 14.2(1j), 14.2(2e)

Defect Information

Defect ID	Headline
CSCvr75413	APIC Connectivity File cleared post-ssd-upgrade, switch brings up ports prior programming vlans

Problem Description

Cisco has recently identified a defect (Cisco bug ID CSCvr75413) in the Cisco Application Centric Infrastructure (ACI). After a leaf switch is upgraded, the switch brings up the front panel ports before the policies are programmed. This might cause a connectivity issue if a connected host relies on the link level state to decide whether or not it can forward traffic on a particular Network Interface Card (NIC) or port. The loss duration is proportional to the scale of configuration policies that must be programmed.

This issue can occur after a policy-based upgrade is performed.

Background

Cisco has identified a software issue which might affect your use of this software. Review this field notice in order to determine if the issue applies to your environment. You can proceed to download the software if you have no concerns with the issue described.

For more comprehensive information about what is included in the software, refer to the Cisco Application Policy Infrastructure Controller (APIC) documentation.

Problem Symptom

After a leaf switch is upgraded, the switch brings up the front panel ports before the policies are programmed.

Workaround/Solution

There is no workaround for this issue. Upgrade to a fixed software version in order to avoid the issue.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email or telephone

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