Release Notes for SONiC on Cisco 8000 Series Routers, Release 202505c.1.1.0
Available Languages
Bias-Free Language
The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
- US/Canada 800-553-2447
- Worldwide Support Phone Numbers
- All Tools
Feedback
Feedback
SONiC on Cisco 8000 Series Routers, Release 202505c.1.1.0
SONiC on Cisco 8000 Series Routers, Release 202505c.1.1.0
Cisco SONiC Release 202505c.1.1.0 for Cisco 8000 Series Routers enhances platform reliability and API integration through comprehensive GNMI-OC XPath support across core routing and system management domains. In addition, it introduces advanced flowlet and per-packet load balancing feature on multiple ASICs. This release streamlines network management through a unified GNMI framework and robust serviceability features, ensuring a scalable foundation for high-performance deployments.
Table 1. SONiC on Cisco 8000 Series Routers, Release 202505c.1.1.0
| Product impact |
Feature |
| Software Reliability |
GNMI-OC DHCP Relay XPath Support Enhancements |
| Software Reliability |
GNMI Over Cloud VRF XPath Support |
| Ease of Setup |
Enhanced GNMI Operational Configuration Framework |
| Ease of Setup |
Support for GNMI OpenConfig Routes XPath Configuration |
| API Experience |
Support for GNMI-OC SVI XPath Integration |
| Software Reliability |
Support for GNMI-OC Layer 3 Access XPaths |
| API Experience |
Support for GNMI-OC BFD XPath Integration |
| API Experience |
Support for GNMI-OC Access Control List XPath Integration |
| Software Reliability |
GNMI-OC Telemetry Framework Support |
| Software Reliability |
Support for GNMI-OC BGP XPaths |
| Software Reliability |
GNMI-OC System XPath Support |
| Software Reliability |
Support for GNMI-OC LLDP XPaths |
| Ease of Setup |
SONiC Support for Flowlet and Per-Packet Load Balancing |
| Ease of Setup |
Support for GNMI configuration Framework |
There is no new hardware introduced in this release.
There are no changes in behavior in this release.
Table 2. Open issues for Release 202505c.1.1.0
| Component |
Version |
| Warmboot support |
Warmboot is not supported on Cisco 8122-64EHF and 8122-64EHF-O. |
| Unsupported show commands |
These commands are not fully supported on Cisco 8122-64EHF and 8122-64EHF-O: · show platform npu histogram sms · show platform npu histogram sqg · show platform npu histogram tc · show platform npu temperatures |
| Syseeprom command |
show platform syseeprom returns an incorrect value for device version 0x26 on Cisco 8122-64EHF and 8122-64EHF-O. |
There are no known issues in this release.
This table outlines the versions of various components included in this release.
Table 3. Component version for SONiC on Cisco 8000 Series Routers, Release 202505c.1.1.0
| Component |
Version |
| Linux Kernel |
6.1.123-1 |
| SAI API |
1.16.1 |
| FRR |
10.3-sonic-0 |
| LLDP |
1.0.16-1+deb12u1 |
| TeamD |
1.31-1 |
| SNMPD |
5.9.3+dfsg-2+deb12u1 |
| Python |
3.11.2 |
| SYNCD |
1.0.0 |
| swss |
1.0.0 |
| Radvd |
2.19-1+b1 |
| ISC-DHCP |
4.4.3-P1-2 |
| sonic-gnmi version |
0.1 |
| redis-server |
7.0.15-1~deb12u4 |
| redis-tools version |
7.0.15-1~deb12u4 |
| eventd version |
1.0.0-0 |
| mgmt-framework version |
1.0-01 |
Table of supported hardware components and the minimum required software versions.
Table 4. Supported hardware for SONiC on Cisco 8000 Series Routers, Release 202505c.1.1.0
| Part Number |
Description |
| 8102-64H-O |
Cisco 8100 2 RU Chassis with 64x100G QSFP28 with Open Software and without HBM on Q200 Silicon. |
| 8122-64EHF-O |
Cisco 8100 2 RU Chassis with 64x 800G (2x 400G OSFP800) with Open Software and without HBM on G200 Silicon. |
Table 5. Related resources
| Resource |
Description |
| Provides documentation for installing and deploying SONiC on Cisco 8000 Series Routers.
|
|
| Introduces use-case-based documentation for SONiC through Learning Labs, offering guidance on use cases and configurations to facilitate deployment. Additionally, it enables experimentation and customization to meet specific network requirements. |
|
| Provides guidance on installing a new SONiC image on Cisco 8000 series routers, covering two installation methods: Open Network Install Environment (ONIE) and the sonic-installer command. |
|
| Provides detailed specifications and feature information for Cisco 8000 Series Routers in the Data Sheet. |
|
| Provides SONiC image download options for Cisco 8000 Series Routers. |
|
| Provides documentation for installing and deploying SONiC on Cisco 8000 Series Routers.
|
|
| Introduces use-case-based documentation for SONiC through Learning Labs, offering guidance on use cases and configurations to facilitate deployment. Additionally, it enables experimentation and customization to meet specific network requirements. |
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries.
Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers.
© 2026 Cisco Systems, Inc. All rights reserved.