Cisco ISR4431/K9 Router

Cisco ISR4431/K9 Router:

The Cisco Integrated Services Router 4431 (ISR4431/K9) is part of the Cisco 4000 Series ISR family. It’s designed for medium to large branch offices, combining routing, security, and application services into a single platform. It’s a modular, high-performance router used in enterprise networks where you need high availability, advanced services, and scalability.

Cisco ISR4431/K9 Router was released in 30-SEP-2014 and will support by cisco company till 30-NOV-2028. This Cisco Router designed by Cisco company and you can buy it in network equipment market with Atech warranty. If you want to know more about network switch specially 3750X cisco switches, you can contact us.

Features of Cisco ISR4431/K9 Router:

• Performance: Up to 1 Gbps throughput (upgradable to 2 Gbps with a performance license)
• Modular design: Flexible interface modules for different needs
• Security: Supports Cisco security services like firewall, VPN, IPS
• Application visibility: Supports Application Experience (AppX) with deep packet inspection
• Integrated WAN optimization
• Voice and video support: Ideal for Unified Communications

Ports and Interfaces of Cisco ISR4431/K9 Router:

• 3 NIM slots (Network Interface Modules): For WAN, LTE, DSL, serial, switch, module, etc.
• 2 SM-X slots (Service Modules): For advanced services like voice, WAN acceleration
• 1 Integrated Gigabit Ethernet Management Port
• 4 x 10/100/1000 RJ-45 LAN/WAN ports
• 1 Console port (RJ-45 and mini-USB)
• 1 Auxiliary port
• USB ports: For storage and software image loading

Applications of Cisco ISR4431/K9 Router:

1. Branch Office Connectivity: Secure and high-performance connection to the data center or cloud.
2. Unified Communications: Supports voice, video, and collaboration tools.
3. Security Edge Router: Acts as a secure gateway with built-in VPN, firewall, and threat defense.
4. SD-WAN Capable: Can be used with Cisco SD-WAN for software-defined branch networking.
5. Application Hosting: You can run virtual network functions (VNFs) directly on the router (like firewalls or WAN optimizers).

Example Use Scenario:

A company has 20 branches and needs each one connected to the head office with secure, high-speed internet. The ISR4431 sits at each branch, managing VPN tunnels, QoS for VoIP, and providing local services like firewalling all in one box.

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