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Update Summary

Cisco Catalyst 9400 Series Switches, Cisco IOS XE 17.17.x adds CTS Role-Based Enforcement, Strict-KEX, uplink sequencing, and new hardware support including QSFP-100G-LR-S and C9400-PWR-2100ACT. Release 17.17.1 also resolves several switch and link issues and includes upgrade, ROMMON, and CPLD guidance.

Update Details

Security

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Known Issues

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Hints

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Links

Product Information

Vendor: Cisco

Product: IOS XE

Product type: Other

Platform: Network Device

Variant: 17.17

Version: 17.17.1

Vendor information published: Mar 31, 2025

Original release notes: View on vendor site

Published on updatealert.io: Jun 5, 2026

Description: Network operating system software for Cisco enterprise routers and switches.