Release Notes for SONiC on Cisco 8000 Series Routers, Release 202605.1.1.0

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Updated:October 16, 2026

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Updated:October 16, 2026
 

 

SONiC on Cisco 8000 Series Routers, Release 202605.1.1.0...... 3

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SONiC on Cisco 8000 Series Routers, Release 202605.1.1.0

Cisco SONiC Release 202605.1.1.0 introduces support for fabric card shut and unshut functionality, dynamic port breakout, and the Cisco 8223-64E-MO and 8122X-64EF-O platforms. This release enhances the SONiC platform on Cisco 8000 Series Routers by improving software reliability and deployment simplicity.

New software features

Table 1.             SONiC on Cisco 8000 Series Routers, Release 202605.1.1.0

Product impact

Feature

Software Reliability

Support for Fabric Card Shut/Unshut Functionality

Software Reliability

Support for Dynamic Port Breakout on Q200/G200 Open PID Platforms

Software Reliability

Cisco SONiC Utility Docker - Application Extension Support

Hardware Reliability

Support for Remote Line Card Hardware Fault Detection and Handling on Route Processor

Software Reliability

Support for 8800 Modular Fabric Remediation in SONiC

Software Reliability

Support for NPU Host in Online Diagnostics Enhancements

Ease of Setup

Support for IP-in-IP DIP and SIP Subnet-Based Tunnel Termination with Scale of 128

Software Reliability

Support for Changing Differentiated Services Code Point via Egress Access Control List

 

New hardware

Table 2.             New hardware support for SONiC on Cisco 8000 Series Routers, Release 202605.1.1.0

Hardware

Description

8122X-64EF-O

Cisco 8100 2 RU chassis with 64x800G or 128x400GbE OSFP800 ports, Open Software, without HBM, based on the G200x ASIC with 112 Gb/s SerDes.

8223-64E-MO

Cisco 8223 3 RU Router with 64x800G QSFP-DD800 ports, MACsec, and Open Software.

Changes in behavior

There are no changes in behavior in this release.

Open issues

There are no open issues in this release.

Known issues

Table 3.             The following known issues apply to this release.

Known Issues

Description

Warmboot support on Cisco 8223 and 8122X-64EF-O platforms

Warmboot is not supported on the Cisco 8223 and 8122X-64EF-O platforms in this release.

Sub-port remains down after SoftOIR with 2x200G optics

When using 2x200G optics with firmware version 5.4.0, one sub-port may remain down after a SoftOIR operation.

Egress traffic is blocked by PFC frames on a lossy queue on the Cisco 8122 platform

On the Cisco 8122 platform, egress traffic may be blocked when Priority Flow Control (PFC) frames are received on a lossy queue.

 

Compatibility

This table outlines the versions of various components included in this release.

Table 4.             Component version for SONiC on Cisco 8000 Series Routers, Release 202605.1.1.0

Component

Version          

Linux Kernel

6.12.41+deb13-sonic-amd64

SAI API

1.18.1

FRR

10.5.4-sonic-0

LLDP

1.0.16-1+deb12u1

TeamD

1.31-1

SNMPD

5.9.4+dfsg-2+deb13u1

Python

3.13.5-1

SYNCD

1.0.0

swss

1.0.0

Radvd

1:2.20-1+b1

ISC-DHCP

4.4.3-P1-2

sonic-gnmi version

0.1

redis-server

5:8.0.2-3+deb13u3

redis-tools version

5:8.0.2-3+deb13u3

eventd version

1.0.0-0

mgmt-framework version

1.0-01

Supported hardware

Table of supported hardware components and the minimum required software versions.

Table 5.             Supported hardware for SONiC on Cisco 8000 Series Routers, Release 202605.1.1.0

Part Number

Description

8102-64H-O

Cisco 8100 2 RU Chassis with 64x100G QSFP28 with Open Software and without HBM on Q200 Silicon.

8101-32FH-O-C01

Cisco 8100 1 RU Chassis with 32x400G QSFP-DD, Open Software, and without HBM on Q200 Silicon.

8101-32FH-O

Cisco 8100 1 RU Chassis with 32x400G QSFP56-DD with Open Software and without HBM on Q200 Silicon.

8201-32FH-O

Cisco 8200 32x400G QSFPDD 1RU Fixed System w/HBM

8122-64EHF-O

Cisco 8100 2 RU Chassis with 64x800G or 128x400GbE OSFP800 with open Software without HBM based on G200 ASIC with 112Gb Serdes

8122X-64EF-O

Cisco 8100 2 RU chassis with 64x800G or 128x400GbE OSFP800 ports, Open Software, without HBM, based on the G200x ASIC with 112 Gb/s SerDes.

8102-28FH-DPU-O

Cisco 8100 28x400G QSFPDD DPU enabled, 2RU Fixed Switch, with open Software without HBM

8223-64E-MO

Cisco 8223 3 RU Router with 64x800G QSFP-DD800 ports, MACsec, and Open Software.

Related resources

Table 6.             Related resources

Resource

Description

Explore SONiC on Cisco 8000 Series Routers

Provides documentation for installing and deploying SONiC on Cisco 8000 Series Routers.

 

Explore Cisco 8000 SONiC on Interactive Python Notebooks

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.

Install SONiC on Cisco 8000 Routers

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.

Cisco 8000 Series Routers Data Sheet

Provides detailed specifications and feature information for Cisco 8000 Series Routers in the Data Sheet.

Cisco Software Download Center

Provides SONiC image download options for Cisco 8000 Series Routers.

Explore SONiC on Cisco 8000 Series Routers

Provides documentation for installing and deploying SONiC on Cisco 8000 Series Routers.

 

Explore Cisco 8000 SONiC on Interactive Python Notebooks

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.


 

Legal information

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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.

 

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