Cisco IOS XE 26
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- IOS XE 26.1.1
Status: Available | Release Date: 03-Jun-2026
- IOS XE 26.2.1
Status: Available | Release Date: 31-Aug-2026
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Recent Security Notices
- 10-Apr-2026
Document Categories
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Security Notices
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Release and Compatibility
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Cisco IOS XE 26.1.1
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Cisco IOS XE 26.1.x
- Release Notes for Cisco Catalyst 9200 Series Switches, Cisco IOS XE 26.1.x
- Release Notes for Cisco Catalyst 9300 Series Switches, Cisco IOS XE 26.1.x
- Release Notes for Cisco Catalyst 9400 Series Switches, Cisco IOS XE 26.1.x
- Release Notes for Cisco Catalyst 9500 Series Switches, Cisco IOS XE 26.1.x
- Release Notes for Cisco Catalyst 9600 Series Switches, Cisco IOS XE 26.1.x
- Release Notes for Cisco ESR6300 Routers, IOS XE 26.1.x
- Release Notes for Cisco Catalyst 8000V Edge Software, Release 26.1.1
- Release Notes for Cisco Catalyst IR1101, IR1800, IR8140, and IR8340 Routers, IOS XE 26.1.x
- Release Notes for Cisco Catalyst IE9300 Rugged Series Switches, Release 26.1.x
- Release Notes for Catalyst 8200 and Catalyst 8300, Release 26.1.x
- Release Notes for Cisco 8000 Series Secure Routers, Release 26.1.x
- Release Notes for Cisco Catalyst IE3x00, IE3100 Rugged, IE3100 Heavy Duty, IE3400 Heavy Duty, and ESS3300 Series Switches, Release 26.1.x
- Release Notes for Cisco Catalyst ESS9300 Embedded Series Switches, Release 26.1.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 26.1.x
- Release Notes for Cisco C9550 Series Smart Switches, Release Cisco IOS XE 26.2.x
- Release Notes for Cisco C9350 Series Smart Switches, Release Cisco IOS XE 26.1.x
- Release Notes for Cisco C9610 Series Smart Switches, Release Cisco IOS XE 26.1.x
Release Notes
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Reference
- Command Reference, Cisco IOS XE 26.x.x (Catalyst 9400 Switches)
- Programmability Command Reference, Cisco IOS XE 26.x.x
- Command Reference, Cisco IOS XE 26.x.x (Catalyst 9600 Switches)
- Command Reference, Cisco IOS XE 26.x.x (Catalyst 9300 Switches)
- Command Reference, Cisco IOS XE 26.x.x (Catalyst 9200 Switches)
- Command Reference, Cisco IOS XE 26.x.x (Catalyst 9500 Switches)
Command References
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9177E Access Point, Release 26.2.1 (XLSX - 16 MB)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9177D Access Point, Release 26.2.1 (XLSX - 3 MB)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9177I Access Point, Release 26.2.1 (XLSX - 3 MB)
- Detailed Channels and Maximum Power Settings for Cisco Catalyst IW9167E Heavy Duty Access Point, Release 26.1.1 (XLSX - 123 MB)
- Detailed Channels and Maximum Power Settings for Cisco Catalyst IW9167I Heavy Duty Access Point, Release 26.1.1 (XLSX - 12 MB)
- Detailed Channels and Maximum Power Settings for Cisco Catalyst IW9165D Heavy Duty Access Point, Release 26.1.1 (XLSX - 44 MB)
- Detailed Channels and Maximum Power Settings for Cisco Catalyst IW9165E Rugged Access Point, Release 26.1.1 (XLSX - 97 MB)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9178I Outdoor Access Point, Release 26.1.1 (XLSX)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9176I Outdoor Access Point, Release 26.1.1 (XLSX)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9176D1 Outdoor Access Point, Release 26.1.1 (XLSX)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9174I Outdoor Access Point, Release 26.1.1 (XLSX)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9174E Outdoor Access Point, Release 26.1.1 (XLSX)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9172H Access Point, Release 26.1.1 (XLSX)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9172I Access Point, Release 26.1.1 (XLSX)
- Detailed Channels and Maximum Power Settings for Cisco Wireless 9171I Outdoor Access Point, Release 26.1.1 (XLSX)
Technical References
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Configuration
- STP Configuration Guide
- Quality of Service Configuration Guide
- RADIUS Configuration Guide
- MPLS Configuration Guide
- Policy-Based Routing Configuration Guide
- Management Configuration Guide
- IP SLAs Configuration Guide
- ACLs Configuration Guide
- Flow Control and Storm Control Configuration Guide
- Web User Interface
- NAT Configuration Guide
- FHS and SISF Configuration Guide
- Programmability Configuration Guide
- Etherchannel Configuration Guide
- GRE Configuration Guide
Configuration Guides
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Troubleshooting
- System Message Guide for Cisco IOS XE 26.1.x
Error and System Messages
- Operate a Robust IOS XE DHCP Server
Troubleshooting TechNotes
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