Cisco ISR 4451-X Integrated Services Router

The Cisco ISR 4451-X is the largest fixed-chassis model of the ISR 4000 series: a 2RU branch and campus-edge router with four Gigabit Ethernet WAN ports in RJ45 or SFP form, three NIM slots, two SM-X service-module slots and an ISC slot for UCS E-Series or voice modules. Base IPv4 forwarding is 1 Gbps, unlocked to 2 Gbps with the Performance licence, and the control plane ships with 4 GB of DRAM and 8 GB of flash, expandable to 16 GB and 32 GB. Dual power supplies, integrated PoE and Cisco IOS XE with SD-WAN, firewall, voice and WAN optimisation features made it a common hub router for mid-size enterprises.

Cisco announced end-of-sale for the ISR 4451-X on 7 November 2023, with a last ship date of 6 February 2024 and support running until 30 November 2028. The router is still requested by organisations that must match an installed base, maintain spares for multi-site WANs or extend an existing SD-WAN deployment, while new designs are steered towards the Catalyst 8300-2N2S-4T2X and 8300-2N2S-6T replacements.

InTechnologies FZCO can source remaining new ISR 4451-X units from authorised channel stock, or propose the Catalyst 8300 successor, for customers in Dubai, the UAE and neighbouring markets. Cisco hardware is invoiced and contracted by our licensed partners; InTechnologies handles sourcing, consolidation in Dubai and DDP or DDU delivery.