Release Notes for the Cisco Cloud Native BNG Control Plane, Version 2025.03.0
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Release Notes for the Cisco Cloud Native BNG Control Plane, Version 2025.03.0
Release Notes for the Cisco Cloud Native BNG Control Plane, Version 2025.03.0
This Release Notes identifies changes and issues related to the software release of Cisco Cloud Native BNG Control Plane.
The key highlights of this release include:
· Resource-efficient redundancy with SRG warm-standby mode
A single warm standby User Plane (UP) can now provide redundancy for multiple UP instances, improving cost efficiency and resource utilization.
· Advanced traffic management with framed route tag and preference support
Assign static IPv4 or IPv6 routes with tag and preference values during authentication, enabling prioritization and optimized routing of subscriber traffic.
· Seamless connectivity via L2TP tunnel failover support
Automatic failover of subscriber sessions to a backup LNS server ensures uninterrupted broadband service, minimizing disruption in the event of server failures.
· Automated IP address management with periodic reconciliation
Stale IP addresses are periodically and automatically identified and reclaimed, helping maintain accurate records and prevent address exhaustion.
· Safe and efficient IPAM with offline address range support
Address ranges can now be marked as offline, ensuring that no new IPs or chunks are allocated from those spaces and supporting safe, efficient address management.
· Simplified network management with static IP pool support
Enhanced static IP pool functionality now allows both IANA and IAPD to share a single address scope. This reduces the number of routes in your network and streamlines overall management.
For more information about cnBNG Control Plane and related products, see the Related resources section.
Release lifecycle milestones
The following table provides EoL milestones for Cisco cnBNG Control Plane software:
Table 1. EoL milestone information for cnBNG CP, Release 2025.03.0
| Milestone |
Date |
| First Customer Ship (FCS) |
25-Aug-2025 |
| End of Life (EoL) |
25-Aug-2025 |
| End of Software Maintenance (EoSM) |
25-Aug-2028 |
| End of Vulnerability and Security Support (EoVSS) |
25-Aug-2029 |
| Last Date of Support (LDoS) |
25-Feb-2030 |
This section provides a brief description of the new software features introduced in this release.
Table 2. New software features for cnBNG CP, Release 2025.03.0
| Product impact |
Feature |
Description |
| Hardware Reliability |
This feature improves cost efficiency and resource utilization by allowing a single warm standby User Plane (UP) to provide redundancy for multiple UP instances. Instead of needing a separate standby for each active UP, you can use a single standby node to protect several UPs at once. |
|
| Ease of Use |
You can now prioritize and control subscriber traffic by assigning static routes with preference and tag values during authentication. By allowing the assignment of IPv4 or IPv6 framed routes through RADIUS attributes, this feature enables your network to automatically select the optimal path for both IPv4 and IPv6 subscribers. |
|
| Software Reliability
|
You can now maintain continuous broadband service for subscribers, even if the preferred LNS server becomes unavailable. This feature automatically switches subscriber sessions to a backup LNS server whenever a failure occurs, minimizing service disruption and ensuring seamless connectivity for end users. |
|
| Software Reliability
|
You can now keep your IP address records accurate and avoid address exhaustion. This feature automatically identifies and reclaims stale IP addresses through a periodic, automated process, making management easier and more reliable. |
|
| Software Reliability
|
You can now mark address ranges as offline. With this feature, when you set a chunk offline during address range deletion, IPAM gets notified and stops allocating new IPs or chunks from that space. This ensures address ranges are managed safely and efficiently. |
|
| Ease of Use |
We have enhanced the “IANA and IAPD Allocation from Same IP Range” feature to support static IP pools, allowing both IANA and IAPD to share a single address scope. This helps you reduce the number of routes in your network and simplifies management. |
This table lists the open issues in this specific software release.
Note: 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 Search Tool. To search for a documented Cisco product issue, type in the browser: <bug_number> site:cisco.com
Table 3. Open issues for cnBNG CP, Release 2025.03.0
| Bug ID |
Description |
| [5M-IPoE] Rainy-Day Server Shutdown Causes BNG-N4 OOM restarts, Call Instability & switchover |
This section lists compatibility information of the software components/packages that are verified to work with this version of the cnBNG Control Plane software.
Table 4. Compatibility information for cnBNG CP, Release 2025.03.0
| Product |
Supported Release |
| BNG UP (ASR 9K) |
IOS XR Release 25.3.1* |
| SMI CEE |
2025.03.1.10 |
| SMI Cluster Deployer |
2025.03.1.10 |
| SMI Base ISO Image |
22.04.0-20250702 |
*Subject to feature availability.
This section provides information about the release packages associated with cnBNG Control Plane software.
Table 5. Software packages for cnBNG CP, Release 2025.03.0
| Software Package |
Description |
Release |
| bng.2025.03.0.SPA.tgz |
The cnBNG CP offline release signature package. This package contains the cnBNG CP deployment software as well as the release signature, certificate, and verification information. |
2025.03.0 |
| ncs-6.4.5-cisco-bng-nc-1.1.2025.03.0.tar.SPA.tgz |
The NETCONF NED package. This package includes all the yang files that are used for NF configuration. Note that NSO is used for the NED file creation. |
6.4.5 |
| ncs-6.4.5-cisco-bng-smi-deployer-2025.03.0.tar.SPA.tgz |
NSO Core-Function-Pack |
6.4.5 |
Cloud native product version numbering system
The show helm list command displays detailed information about the version of the cloud native product currently deployed.
Image checksum information is available through Cisco.com Software Download Details. To find the checksum, hover the mouse pointer over the software image you have downloaded.
To validate the information, calculate a SHA512 checksum using the information in the following table and verify that it matches the one provided on the software download page.
To calculate a SHA512 checksum on your local desktop, see this table.
Table 6. Checksum calculations per operating system
| Operating System |
SHA512 checksum calculation command examples |
| Microsoft Windows |
Open a command line window and type the following command: > certutil.exe -hashfile <filename.extension> SHA512 |
| Apple MAC |
Open a terminal window and type the following command: $ shasum -a 512 <filename.extension> |
| Linux |
Open a terminal window and type the following command: $ sha512sum <filename.extension> OR $ shasum -a 512 <filename.extension> |
| Note: <filename> is the name of the file. <extension> is the file type extension (for example, .zip or .tgz). |
|
If the SHA512 checksum does not match, we advise you not to attempt upgrading any systems with the corrupted software image. Download the software again and verify the SHA512 checksum again. If there is a constant mismatch, please open a case with the Cisco Technical Assistance Center.
This table provides key resources and links to the support information and essential documentation for cnBNG Control Plane and related products.
Table 7. Related resources and additional information
| Resource |
Link |
| cnBNG Control Plane documentation |
|
| cnBNG User Plane documentation |
|
| Physical BNG documentation |
|
| SMI documentation |
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