Cisco 4351 EOL Replacement Guide

This post was originally published on ZPE Systems

The Cisco 4351 comes from the Integrated Services Router (ISR) product line of enterprise branch WAN solutions. The ISR 4351 works with Cisco’s software-defined wide area networking (SD-WAN) solution and the Cisco Digital Network Architecture (Cisco DNA) infrastructure management platform. It has a modular design that uses removable Network Interface Modules (NIMs) to extend its capabilities, for example, adding out-of-band (OOB) serial console management for up to 60 devices. Cisco announced end-of-life (EOL) dates for the entire ISR 4300 product line in 2022, and the 4351 is already past the end-of-sale and last ship dates. This guide compares Cisco 4351 EOL replacement options and discusses the innovative features and capabilities offered by modern, Gen 3 branch networking solutions. Click here for a list of Cisco ISR 4351 EOL products and replacement SKUs. Upcoming Cisco ISR 4351 EOL dates November 6, 2024 – End of routine failure analysis, end of new service attachment August 31, 2025 – End of software maintenance releases and bug fixes February 5, 2028 – End of service contract renewal November 30, 2028 – Last date of support. Cisco 4351 EOL replacement options

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