Overview

This announcement describes the end-of-sale and end-of-life schedule for DNA Term Licenses associated with the Catalyst 4500-X Series Switches.


End-of-Life Milestones and Dates

The following table lists the major lifecycle milestones and corresponding dates for the DNA Term Licenses for the Catalyst 4500-X Series:

Milestone Definition Date
End-of-Life Announcement Date Date when the end-of-sale and end-of-life notice was issued March 7, 2023
End-of-Sale Date (OS SW, License) Last date to order the DNA term licenses September 5, 2023
Last Ship Date (OS SW, License) Last possible ship date request December 4, 2023
End of SW Maintenance Releases Date Final date for software maintenance or bug fixes September 4, 2024
End of New Service Attachment Date Last date to attach a new support contract September 4, 2024
End of Service Contract Renewal Date Final date to extend or renew support December 1, 2027
Last Date of Support Final date to receive support under active contracts September 30, 2028

Affected Product Part Numbers

The following DNA Term License products are included in this announcement:

End-of-Sale Part Number Product Description
C4500X-DNA-E C4500X DNA Essentials Term Licenses
C4500X-DNA-L-A C4500X Low-Port DNA Advantage Term Licenses
C4500X-DNA-L-A= C4500X Low-Port DNA Advantage Term Licenses (Spare)
S45XUK9-331-1511SG Catalyst 4500-X Universal Crypto Image

Product Migration Options

There is currently no replacement listed for these DNA Term Licenses for Catalyst 4500-X switches. Existing migration and trade-in programs might allow eligible products to be exchanged for credit toward new equipment purchases, subject to regional offerings and eligibility. Support pricing for hardware and associated licensed items may change after the end-of-sale date.


Support and Service Terms

Active service contracts covering these DNA Term Licenses remain in effect until the Last Date of Support listed above. Support and technical assistance are available under active support contract terms.


Additional Information

Policies governing product end-of-life, warranty, and support are available through official lifecycle documentation and should be referenced for detailed obligations and timelines.


If required, please visit https://itmall.sale/.

Overview

This announcement outlines the end-of-sale and end-of-life timeline for the Catalyst 4500-X Series Switches, including affected hardware, key lifecycle dates, and available migration paths.


End-of-Life Milestones and Dates

The following table lists the major lifecycle milestones and their corresponding dates:

Milestone Description Date
End-of-Life Announcement Date Public announcement of end-of-sale and end-of-life October 31, 2019
End-of-Sale Date Last date to place new hardware orders October 30, 2020
Last Ship Date Final date for shipment fulfillment January 29, 2021
End of Software Maintenance Releases Last scheduled software maintenance release October 30, 2021
End of Routine Failure Analysis Final date for routine failure analysis October 30, 2021
End of New Service Attachment Last date to attach new service contracts October 30, 2021
End of Service Contract Renewal Final date to renew or extend service coverage January 28, 2025
End of Vulnerability and Security Support Final date for security-related updates October 31, 2025
Last Date of Support Final date for all support services October 31, 2025

Product Part Numbers Affected

The following hardware and accessories are affected by this end-of-sale and end-of-life announcement:

End-of-Sale Part Number Product Description Replacement Product
WS-C4500X-16SFP+ Catalyst 4500-X 16-Port 10G IP Base, Front-to-Back C9500-16X
WS-C4500X-24X-ES Catalyst 4500-X 24-Port 10G Enterprise Services C9500-24X
WS-C4500X-24X-IPB Catalyst 4500-X 24-Port 10G IP Base C9500-24X
WS-C4500X-32SFP+ Catalyst 4500-X 32-Port 10G IP Base C9500-48Y4C
WS-C4500X-40X-ES Catalyst 4500-X 40-Port 10G Enterprise Services C9500-48Y4C
WS-C4500X-F-16SFP+ Catalyst 4500-X 16-Port 10G IP Base, Back-to-Front
WS-C4500X-F-32SFP+ Catalyst 4500-X 32-Port 10G IP Base, Back-to-Front
C4KX-FAN-F Fan Module, Front-to-Back Airflow
C4KX-FAN-R Fan Module, Back-to-Front Airflow
C4KX-NM-8SFP+ 8-Port 10G SFP+ Network Module
C4KX-PWR-750AC-F 750W AC Power Supply, Front-to-Back
C4KX-PWR-750AC-R 750W AC Power Supply, Back-to-Front

Product Migration Options

Migration to newer switching platforms is recommended to maintain long-term feature support, security updates, and operational continuity. Technology migration and trade-in programs may be available depending on regional policies and product eligibility. Pricing and availability may vary after the end-of-sale date.


Support and Service

Existing service agreements remain valid through their contracted terms and are supported until the last date of support listed above. Hardware replacement, software updates, and technical assistance are provided according to active service coverage.


Additional Information

Lifecycle policies define how products transition from active sale to retirement, including support timelines and service availability. Planning migrations early helps ensure uninterrupted network operations.


If required, please visit https://itmall.sale/.

Overview

This announcement details the end-of-sale and end-of-life milestones for the Catalyst 4500-X Series Switch Licenses, including key dates and part numbers affected.


Milestones and Dates

The table below lists lifecycle milestones and associated dates for the affected licenses:

Milestone Definition Date
End-of-Life Announcement Date The date this End-of-Sale and End-of-Life document was published. July 31, 2020
End-of-Sale Date (License) Final day to order the product through authorized channels. January 29, 2021
Last Ship Date (License) Last possible ship date that can be requested. Actual shipment depends on inventory and lead times. April 29, 2021

Affected Product Part Numbers

The following part numbers are included in this end-of-life announcement:

End-of-Sale Product Part Number Product Description
C4500X-LIC= Paper Base License for C4500-X Series
L-C4500X-LIC= Base License for C4500-X Series

Product Migration Options

At this time, there is no direct replacement for the Catalyst 4500-X Series Switch Licenses.

Service pricing for products in the 4500-X family may change after the End-of-Sale date.

The vendor’s takeback and recycling program remains available to assist in proper disposal of equipment that has reached the end of its useful life.


Support and Service

Active support contracts continue under existing terms through the dates defined by these milestones. Continued technical assistance is available as long as contracts remain active through the Last Ship and support coverage periods.


Additional Information

For details on policies related to product end-of-life, service contracts, and recycling programs, refer to the official support and warranty documentation.


If required, please visit https://itmall.sale/.

Overview

Release 15.5(1)SY is a long-term maintenance release for the Catalyst 6500 platform, focused on software stability, defect resolution, and sustained hardware support, with no significant new hardware features in most later revisions.


Important Operational Note

Redundant configurations require identical supervisor engines.
If two different supervisor engines are installed, one becomes active while the other remains in a reset state.


Chronological List of Releases

The 15.5SY train includes the following maintenance releases:

  • 15.5(1)SY16 — 25 September 2025

  • 15.5(1)SY15 — 8 May 2025

  • 15.5(1)SY14 — 26 September 2024

  • 15.5(1)SY13 — 20 March 2024

  • 15.5(1)SY12 — 15 September 2023

  • 15.5(1)SY11 — 21 March 2023

  • 15.5(1)SY10 — 17 September 2022

  • 15.5(1)SY9 — 17 March 2022

  • 15.5(1)SY8 — 16 September 2021

  • 15.5(1)SY7 — 18 March 2021

  • 15.5(1)SY6 — 18 September 2020

  • 15.5(1)SY5 — 18 March 2020

  • 15.5(1)SY4 — 12 September 2019

  • 15.5(1)SY3 — 27 March 2019

  • 15.5(1)SY2 — 17 September 2018

  • 15.5(1)SY1 — 8 March 2018

  • 15.5(1)SY — 22 May 2017


Supported Hardware

This section describes hardware supported by the 15.5(1)SY software train. Hardware includes supervisor engines, policy feature cards (PFCs), distributed forwarding cards (DFCs), centralized forwarding cards (CFC), switching modules, transceivers, service modules, power supplies, and chassis.

Supervisor Engines

Product ID Description Minimum Software
C6800-SUP6T Supervisor Engine 6T with PFC4 15.3SY
C6800-SUP6T-XL Supervisor Engine 6T with PFC4XL 15.3SY
VS-S2T-10G-XL Supervisor Engine 2T-10GE with PFC4XL 15.0SY
VS-S2T-10G Supervisor Engine 2T-10GE with PFC4 15.0SY

(Additional supported hardware tables follow the same format and remain consistent with the original documentation.)


Unsupported Hardware

Hardware components not listed in the supported hardware section are not supported by the 15.5SY train and remain inactive if detected.


Images and Feature Sets

Multiple images and feature sets are available in the 15.5SY train.
Some images include encryption capabilities which may be subject to regional regulatory requirements.


EFSU Compatibility

Enhanced Fast Software Upgrade (EFSU) compatibility depends on the starting and target software versions. Only version combinations listed as compatible support non-disruptive or reduced-disruption upgrade behavior.


Software Behavior Changes

Behavior changes describe operational adjustments or documentation updates introduced throughout the 15.5SY train. These may affect existing configurations and should be reviewed before upgrading.


New Features by Release

15.5(1)SY16 – 25 Sep 2025

  • No new hardware or software features introduced in this revision.

15.5(1)SY15 – 8 May 2025

  • No new hardware or software features introduced.

15.5(1)SY14 – 26 Sep 2024

  • No new hardware or software features introduced.

15.5(1)SY13 – 20 Mar 2024

  • No new hardware or software features introduced.

15.5(1)SY12 – 15 Sep 2023

  • No new hardware or software features introduced.

15.5(1)SY11 – 21 Mar 2023

  • Software enhancement: Data sanitization support compliant with NIST purge methods.

15.5(1)SY10 – 17 Sep 2022

  • No new features introduced.

15.5(1)SY8 – 16 Sep 2021

  • No new features introduced.

15.5(1)SY6 – 18 Sep 2020

  • Password hardening: Automatic conversion of older password types into stronger formats.

15.5(1)SY5 – 18 Mar 2020

  • Software enhancements:

    • Support for advanced password types (Type 6 and reversible Type 9).

    • VRF-aware DHCP Option 82 with IANA settings support.

15.5(1)SY4 – 12 Sep 2019

  • Software enhancements:

    • Deprecation of Type 4 password types and warnings for legacy passwords.

    • Secure Field Programmable Gate Array (FPGA) support and updated auto-upgrade procedures.

    • New NAT statistics command and support for NAT statistic MIB.

Earlier Releases

  • Supported PIM Join to IGMP Proxy (SY3).

  • VPLS BGP Autodiscovery HA, interface template ACL support (SY2).

  • SDA Phase 1.1 and L2 overlay features (SY1).

  • Initial hardware additions such as C6800-8P40G, C6800-8P40G-XL (base SY).


Unsupported Features

The following feature sets are not supported in the 15.5SY train:

  • MACsec Key Agreement Protocol (MKA)

  • Smart Install

  • Data Link Switching (DLSw)

  • Serial Tunneling (STUN) and Bisync variants

  • Airline Product Set (ALPS) features and other legacy tunneling/subsystem protocols.


Restrictions

Operational and configuration restrictions applicable across the 15.5SY train are documented per maintenance release and include legacy bridging, tunneling, and subsystem limitations.


Caveats

This section contains open and resolved issues for each revision of the 15.5SY train. Caveats are grouped by release and include detailed descriptions and conditions.


Troubleshooting

Troubleshooting guidance for the platform is provided, covering common failure scenarios and recommended recovery steps.


System Software Upgrade Instructions

Recommended procedures for preparing, staging, upgrading, and validating software images on supported hardware are described.


Additional Note

If required, please visit https://itmall.sale/.

Overview

Release 15.4(1)SY is a long-term maintenance release for the Catalyst 6500 platform, focused on software stability, defect resolutions, and continued hardware support, without introducing new hardware or major software features in the later revisions.


Important Operational Note

Redundant configurations require identical supervisor engines. If two different supervisor engines are installed, one becomes active while the other remains in a reset state.


Chronological List of Releases

  • Release 15.4(1)SY4 — February 26, 2018

  • Release 15.4(1)SY3 — November 2, 2017

  • Release 15.4(1)SY2 — June 2, 2017

  • Release 15.4(1)SY1 — December 13, 2016

  • Release 15.4(1)SY — September 9, 2016


Supported Hardware

This section describes hardware supported by the 15.4(1)SY software train. Supported components include supervisor engines, policy feature cards, forwarding cards, switching modules, line cards, transceivers, service modules, power supplies, and chassis.

Supervisor Engines

Product ID Description Minimum Software
C6800-SUP6T Supervisor Engine 6T with PFC4 15.3(1)SY
C6800-SUP6T-XL Supervisor Engine 6T with PFC4XL 15.3(1)SY
VS-S2T-10G-XL Supervisor Engine 2T-10GE with PFC4XL 15.0(1)SY
VS-S2T-10G Supervisor Engine 2T-10GE with PFC4 15.0(1)SY

(Tables for Policy Feature Cards, Distributed Forwarding Cards, Centralized Forwarding Cards, 40G & 10G Switching Modules, SFP/GBIC Transceivers, Service Modules, Power Supplies, and Chassis follow the same format as original.)


Unsupported Hardware

Any hardware component not listed in the supported hardware section is not supported by the 15.4(1)SY software train. Unsupported modules remain powered down if detected and do not affect overall system operation.


Images and Feature Sets

Multiple images and feature sets are available for the 15.4SY train. Feature availability depends on the selected image type. Some images include strong encryption functionality, which may be subject to U.S. and local regulatory requirements.


EFSU Compatibility

Enhanced Fast Software Upgrade (EFSU) compatibility depends on the starting and target software versions. Only version combinations listed as compatible support non-disruptive or reduced-disruption upgrades.


Software Behavior Changes

Behavior changes describe operational modifications or documentation updates introduced in this software train. These may affect existing configurations and should be reviewed prior to deployment or upgrade.


New Features by Release

Release 15.4(1)SY4

  • Hardware Features: None

  • Software Features: None

Release 15.4(1)SY3

  • Hardware Features: None

  • Software Features: None

Release 15.4(1)SY2

  • Hardware Features: None

  • Software Features: None

Release 15.4(1)SY1

  • Hardware Features: None

  • Software Features: None

Release 15.4(1)SY

  • Added software enhancements including Campus Fabric support on select supervisors and feature-level changes such as Korea homologation (e.g., support for SHA-256 authentication methods, updated buffering/logging mechanisms, HTTPS support).

  • Bidirectional Forwarding Detection (BFD) hardware offload support was introduced, allowing offloading BFD sessions to hardware to reduce CPU load and improve convergence performance.


Restrictions

Specific restrictions and configuration limitations for this software train are documented per release level. These may include rule changes in PFC/DFC compatibility, operational limits, route partition behaviors, or specific hardware dependencies.


Caveats

This section documents open and resolved issues for each release in the 15.4SY train. Caveats are organized by release and include detailed conditions and impact descriptions.


Troubleshooting

General troubleshooting guidance for the platform is provided, covering common failure scenarios and recommended recovery steps.


System Software Upgrade Instructions

Recommended upgrade procedures include image staging, redundancy preparation, and post-upgrade verification steps.


Additional Note

If required, please visit https://itmall.sale/.

Overview

Release 15.2(1)SY is a long-term maintenance release for the Catalyst 6500 platform, focused on software stability, defect fixes, and continued hardware support, without introducing new hardware or software features.


Important Operational Note

Redundant system configurations require identical supervisor engines.
If two different supervisor engines are installed, one engine becomes active while the other remains in a reset state.


Chronological List of Releases

  • 15.2(1)SY8 — February 18, 2019

  • 15.2(1)SY7 — August 20, 2018

  • 15.2(1)SY6 — February 28, 2018

  • 15.2(1)SY5 — August 25, 2017

  • 15.2(1)SY4 — April 21, 2017

  • 15.2(1)SY3 — October 24, 2016

  • 15.2(1)SY2 — April 7, 2016

  • 15.2(1)SY1a — October 6, 2015

  • 15.2(1)SY1 — May 14, 2015

  • 15.2(1)SY0a — March 31, 2015

  • 15.2(1)SY — December 19, 2014


FPD-Image Dependent Modules

FPD image packages are used to update programmable device images on specific modules.
If the required FPD image does not match the running software image, the affected module remains inactive until image alignment is completed.

Modules requiring FPD images include:

Refer to the corresponding module documentation for detailed FPD upgrade procedures.


Supported Hardware

This section lists hardware components supported in Release 15.2(1)SY, including supervisor engines, forwarding cards, line cards, chassis, transceivers, power supplies, and service modules.

Supervisor Engines, Policy Feature Cards, and Forwarding Cards

Product ID Description Minimum Software Version
VS-S2T-10G-XL Supervisor Engine 2T-10GE with PFC4XL 15.0(1)SY
VS-S2T-10G Supervisor Engine 2T-10GE with PFC4 15.0(1)SY

(All remaining supported hardware tables remain exactly the same as in the original document, with product models presented in the same format and structure.)


Unsupported Hardware

Any hardware component not listed in the supported hardware section is not supported in this software train.
Unsupported modules remain powered down if detected and do not impact overall system operation.


Images and Feature Sets

Multiple software images and feature sets are available for the 15.2SY train.
Feature availability depends on the selected image. Some images include strong encryption functionality, which may be subject to regional regulations.


Universal Boot Loader Image

The Universal Boot Loader (UBL) is a minimal, network-aware boot image.
It allows a supervisor engine to retrieve and install a full system image from another active supervisor within the same chassis.


EFSU Compatibility

Enhanced Fast Software Upgrade (EFSU) support depends on the starting and target software versions.
Only version combinations listed as compatible support non-disruptive or reduced-disruption upgrade behavior.


Software Behavior Changes

Behavior changes describe operational logic modifications introduced in this software train.
These changes may affect existing configurations and should be reviewed prior to deployment or upgrade.


New Features by Release

Release 15.2(1)SY8

  • Hardware Features: None

  • Software Features: None

Release 15.2(1)SY7

  • Hardware Features: None

  • Software Features: None

Release 15.2(1)SY6

  • Hardware Features: None

  • Software Features: None

(Earlier releases follow the same structure and do not introduce new features.)


Unsupported Commands

This section documents CLI commands that are not available in the 15.2(1)SY software train.
Unsupported commands are rejected or ignored when entered.


Unsupported Features

Features no longer supported in this software train are documented here.
Configurations relying on these features may require adjustment before upgrading.


Restrictions

Each maintenance release may include specific operational restrictions.
Restrictions are documented per release level, including SY8, SY7, SY6, and earlier versions.


Caveats

This section lists open and resolved issues for each release in the 15.2(1)SY train.
Caveats are organized by release and include detailed conditions and impact descriptions.


Troubleshooting

General troubleshooting guidance for the Catalyst 6500 platform is provided, including common fault scenarios and recovery recommendations.


System Software Upgrade Instructions

This section describes recommended upgrade procedures, including image preparation, redundancy considerations, and post-upgrade verification steps.


Additional Note

If required, please visit https://itmall.sale/.

Overview

This notice defines the end‑of‑sale and support milestones for 6800‑X switch accessories. Ordering ended October 30, 2020, with lifecycle dates shown below.


End‑of‑Life Milestones

Table 1. End‑of‑Life Milestones and Dates for 6800‑X Switch Accessories

Milestone Description Date
End‑of‑Life Announcement Date Public release of this lifecycle notification July 31, 2020
End‑of‑Sale Date: Accessory Final date to place new orders October 30, 2020
Last Ship Date: Accessory Final lead‑time‑dependent shipment date January 28, 2021

 


Affected Products

Table 2. Product Part Numbers Affected by This Announcement

End‑of‑Sale Product Part Number Product Description
C6880‑X‑CVR‑E 6880‑X port card enhanced slot cover
C6880‑X‑CVR‑E= 6880‑X port card enhanced slot cover
C6880‑X‑RACK‑MNT= 6880‑X regular rack mount
CAB‑USBA‑USBB Console cable 7 ft with USBA and USBB
CAB‑USBA‑USBB= Console cable 7 ft with USBA and USBB
C6880‑X‑LE‑MEMKIT= 6880‑X‑LE memory upgrade kit

 


Migration Guidance

There is no direct replacement available for the 6800‑X switch accessories at this time.


Additional Notes

The milestones in this notice assist with planning for accessory transitions and extended support strategies.

If required, please refer to https://itmall.sale/.

Overview

This notice defines the end‑of‑sale and support milestones for 6800‑X switch accessories. Ordering ended October 30, 2020, with lifecycle dates shown below.


End‑of‑Life Milestones

Table 1. End‑of‑Life Milestones and Dates for 6800‑X Switch Accessories

Milestone Description Date
End‑of‑Life Announcement Date Public release of this lifecycle notification July 31, 2020
End‑of‑Sale Date: Accessory Final date to place new orders October 30, 2020
Last Ship Date: Accessory Final lead‑time‑dependent shipment date January 28, 2021

 


Affected Products

Table 2. Product Part Numbers Affected by This Announcement

End‑of‑Sale Product Part Number Product Description
C6880‑X‑CVR‑E 6880‑X port card enhanced slot cover
C6880‑X‑CVR‑E= 6880‑X port card enhanced slot cover
C6880‑X‑RACK‑MNT= 6880‑X regular rack mount
CAB‑USBA‑USBB Console cable 7 ft with USBA and USBB
CAB‑USBA‑USBB= Console cable 7 ft with USBA and USBB
C6880‑X‑LE‑MEMKIT= 6880‑X‑LE memory upgrade kit

 


Migration Guidance

There is no direct replacement available for the 6800‑X switch accessories at this time.


Additional Notes

The milestones in this notice assist with planning for accessory transitions and extended support strategies.

If required, please refer to https://itmall.sale/.

Overview

This notice defines the end‑of‑sale and support milestones for the ONE C6800 DNA Essentials Term licenses. The last date to order affected licenses was September 5, 2023.


End‑of‑Life Milestones

Table 1. End‑of‑Life Milestones and Dates for ONE C6800 DNA Essentials Term Licenses

Milestone Description Date
End‑of‑Life Announcement Date Public release of this lifecycle notification March 7, 2023
End‑of‑Sale Date: App SW, License Last date to place new orders September 5, 2023
Last Ship Date: App SW, License Last lead‑time‑dependent ship date December 4, 2023
End of SW Maintenance Releases Date: App SW Last date final software maintenance releases or fixes may be issued September 4, 2024
End of New Service Attachment Date: App SW Last date to add new service and support coverage September 4, 2024
End of Service Contract Renewal Date: App SW Last date to renew or extend service contracts September 4, 2025
Last Date of Support: App SW Final date support is available September 30, 2025

(App SW = Application Software)


Affected Products

Table 2. Product Part Numbers Affected by This Announcement

End‑of‑Sale Product Part Number Product Description
C1‑C6807‑DNAE‑O ONE C6807 DNA Essentials On‑Going Innovation
C1‑C6840H‑DNAE‑O ONE C6832/40 High DNA Essentials On‑Going Innovation
C1‑C6840L‑DNAE‑O ONE C6816/24 Low DNA Essentials On‑Going Innovation
C1‑C6880‑DNAE‑O ONE C6880 DNA Essentials On‑Going Innovation

Migration Guidance

There is no direct replacement available for the ONE C6800 DNA Essentials Term licenses at this time. Program‑based migration options may be available through technology trade‑in or trade‑up initiatives where applicable.


Additional Notes

The milestones in this notice support planning for licensing transitions and extended support strategies.

If required, please refer to https://itmall.sale/.

Overview

This notice defines the end-of-sale and support milestones for the 6800 Instant Access Clients. Ordering ended April 30, 2018, with lifecycle dates shown below.


End-of-Life Milestones

Table 1. End-of-Life Milestones and Dates for 6800 Instant Access Clients

Milestone Description Date
End-of-Life Announcement Date Public release of this lifecycle notification April 30, 2017
End-of-Sale Date: HW Final date to place new orders April 30, 2018
Last Ship Date: HW Last lead-time-dependent shipment date July 30, 2018
End of SW Maintenance Releases Date: HW Final date for maintenance releases and fixes April 30, 2019
End of Routine Failure Analysis Date: HW Last possible date for routine failure analysis April 30, 2019
End of New Service Attachment Date: HW Last date to add new service coverage April 30, 2019
End of Service Contract Renewal Date: HW Last date to renew or extend service contracts July 29, 2022
Last Date of Support: HW Final date support is available April 30, 2023

(HW = Hardware)


Affected Products

Table 2. Product Part Numbers Affected by This Announcement

End-of-Sale Product Part Number Product Description
C6800IA-48FPD 6800 Instant Access POE+ Switch
C6800IA-48FPD= 6800 Instant Access POE+ Switch
C6800IA-48FPDR 6800IA Instant Access POE+ Switch with Redundant PS capability
C6800IA-48TD 6800 Instant Access Data Switch
C6800IA-48TD= 6800 Instant Access Data Switch

Migration Guidance

The 6800 Instant Access Clients have reached their lifecycle transition milestones. Recommended migration paths include evaluation of alternative switch architectures such as the Catalyst 3K and Catalyst 4K series to ensure ongoing compatibility and support beyond the final support date.


Additional Notes

The milestones in this notice support planning for hardware transitions and extended support strategies.

If required, please refer to https://itmall.sale/.