Release Notes for Cisco Enterprise Network Function Virtualization Infrastructure Software, Release 26.2.x

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Updated:September 27, 2026

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Updated:September 27, 2026
 

 

Cisco Enterprise NFVIS, Release 26.2.1. 3

New software features. 3

New hardware features. 3

Changes in behavior 3

Resolved issues. 3

Open issues. 4

Supported hardware. 4

Supported software packages. 6

Legal information. 6

 

 

Cisco Enterprise NFVIS, Release 26.2.1

This release introduces enhancements to licensing flexibility, user accessibility, and secure network authentication. Smart Licensing Enforcement now restricts general configuration changes after license expiration while keeping licensing, network, and system-setting operations available for recovery. NFVIS Portal also expands internationalization support with French Canadian language availability. In addition, RADIUS and TACACS+ support TLS 1.3 transport while preserving existing non-TLS options, providing stronger security without disrupting current deployment choices.

Note:       See the latest Release Notes for a comprehensive list of all the component brand name changes. While we transition to the new names, some inconsistencies might be present in the documentation set because of a phased approach to the user interface updates of the software product.

New software features

Cisco is constantly enhancing the Cisco Enterprise Network Function Virtualization Infrastructure Software with every release, and we try and keep the content in line with the latest enhancements. The following table lists new and modified features we documented in the Configuration, Command Reference, and Hardware Installation guide.

What’s new for Cisco Enterprise NFVIS Release 26.2.1

Table 1.         New software features for Cisco Enterprise NFVIS Release 26.2.1

Product Impact

Feature

Description

Cisco Enterprise NFVIS

Licensing Process

Smart Licensing Enforcement

NFVIS enables Smart licensing enforcement. When the license reaches expired enforcement, general configuration changes are restricted; licensing, network, and system-setting operations remain available for recovery

Ease of use

Internalization support for French Canadian

NFVIS Portal extends the internalization support for French Canadian language.

Software Reliability

TLS 1.3 Support for AAA Protocols

Radius and TACACS+ will enable TLS 1.3 transport while preserving the existing non TLS options.

New hardware features

There are no new hardware features introduced in this release.

Changes in behavior

There are no Behavior changes captured for Cisco NFVIS Release 26.2.1

Resolved issues

This table lists the resolved issues in this specific software release.

Note:       This software release may contain bug fixes first introduced in other releases. To see additional information, click the bug ID to access the Cisco Bug Tool.

Resolved issues for 26.2.1

Table 2.         Resolved issues for Cisco Enterprise NFVIS 26.2.1

Bug ID

Description

CSCwv43221

NFVIS-for-UC: "factory-default-reset all" errors out due to "Image cannot be deleted"

CSCwv71823

NFVIS: Datastore Loads Indefinitely and CLI Ouput Reflects "No entries found."

CSCwv02182

Not able to set up NFVIS web interface idle timeout larger than 5 min.

CSCwv61274

NFVIS: Factory Default Reset All does NOT Erase All Datastore Contents.

CSCwv61512

NFVIS-for-UC: Incorrect/Inconsistent VM Types when Registering Images from Datastore Uploads.

Open issues

This table lists the open issues in this specific software release.

This software release may contain open bugs first identified in other releases. To see additional information, click the bug ID to access the Cisco Bug Tool.

Open issues for 26.2.1

There are no open defects captured for Cisco NFVIS Release 26.2.1

Supported hardware

Supported platforms

The following table lists the only supported platforms and firmware for Cisco NFVIS.

Table 3.         Cisco NFVIS

Platform

Firmware

Version

UCS C-Series 240 M6 Rack Servers

●  BE6K-M6-XU
●  BE6K-M6-K9
●  BE7M-M6-K9
●  BE7M-M6-XU
●  BE7H-M6-K9
●  BE7H-M6-XU

BIOS

C240M6.4.3.2c.0.0726232000

CIMC

HUU version 4.3(2.230207)

UCS C-Series 220 M7 Rack Servers

●  BE6K-M7-K9
●  BE6K-M7-XU
●  BE7M-M7-K9
●  BE7M-M7-XU
●  BE7H-M7-K9
●  BE7H-M7-XU
●  CE1400V-M7-K9

BIOS

C220M7.4.3.5a.0.0905240935

CIMC

HUU version 4.3(5.240021)

UCS C-Series 220 M6 Rack Servers

●  BE6K-M6-XU
●  BE6K-M6-K9
●  BE7M-M6-K9
●  BE7M-M6-XU
●  BE7H-M6-K9
●  BE7H-M6-XU

BIOS

C220M6.4.3.2c.0.0726232000

CIMC

HUU version 4.3(2.230207)

UCS C-Series 240 M7 Rack Servers

●  BE6K-M7-K9
●  BE6K-M7-XU
●  BE7M-M7-K9
●  BE7M-M7-XU
●  BE7H-M7-K9
●  BE7H-M7-XU
●  CE1400V-M7-K9

BIOS

C240M7.4.3.5a.0.0905240935

CIMC

HUU version 4.3(5.240021)

UCS C-Series 220 M5 Rack Servers

●  BE6M-M5-K9
●  BE6M-M5-XU
●  BE6H-M5-K9
●  BE6H-M5-XU
●  BE7M-M5-K9
●  BE7M-M5-XU
●  BE7H-M5-K9
●  BE7H-M5-XU

BIOS

C220M5.4.1.3i.0.0713210713

CIMC

HUU version 4.1(3d)

UCS C-Series 240 M5 Rack Servers

●  BE6M-M5-K9
●  BE6M-M5-XU
●  BE6H-M5-K9
●  BE6H-M5-XU
●  BE7M-M5-K9
●  BE7M-M5-XU
●  BE7H-M5-K9
●  BE7H-M5-XU

BIOS

C240M5.4.1.3i.0.0713210713

CIMC

HUU version 4.1(3d)

Supported software packages

This section provides information about the release packages associated with Cisco Enterprise NFVIS.

NFVIS Software Upgrade Image Details

The Cisco Enterprise NFVIS upgrade image is available as .iso file. Currently, downgrades are not supported.

For more details on the software upgrade, see the Upgrading Cisco Enterprise NFVIS section in the Cisco Network Function Virtualization Infrastructure Software Getting Started Guide.

Cisco Router VNFs


https://www.cisco.com/c/en/us/td/docs/routers/nfvis/26x-later/nfvis-configuration-guide/cisco-nfvis-configuration-guide/about-nfvis/supported-vms.html
 

Table 4.         Guest VM Compatibility matrix with NFVIS

Platform

NIC Type

VM OS Kernel Driver Version

VM OS DPDK Version

Cisco UCS C M5 and M6 Rack Servers


Intel X550 LOM

4.9.3 or higher version (ixgbevf)

DPDK 19.11 or higher

Cisco UCS C M6 Rack Servers

UCSE-PCIE-1D 10GF (Intel X710-DA4 Quad port 10 GB)

iavf 4.5.3 or higher

DPDK 19.11 or higher

Cisco UCS C M6 Rack Servers

Intel i350 Quad Port 1 GB Adapter

2.3.9.6 or higher (igbuf)

DPDK 19.11 or higher

Cisco UCS C M5 Rack Servers

Intel i350-mLOM 1Gbps Network Controller

4.18.0 or higher (igbvf)

DPDK 19.11 or higher

Cisco UCS C M7 Rack Servers

Cisco X710T2LG 2x10 GbE RJ45 OCP 3.0 NIC

4.18.0 or higher (igbvf)

DPDK 19.11 or higher

Legal information

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: https://www.cisco.com/c/en/us/about/legal/trademarks.html. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1721R)

Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

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