ISR4351/K9

Key Features of Cisco ISR4351/K9:

1. High Performance & Scalability:

   • The ISR4351 is built for medium to large-sized organizations that require higher throughput and scalability. It delivers performance up to 2 Gbps in throughput, making it suitable for both small to medium-sized branch offices and high-performance WAN applications.
   • It can handle high-speed data, voice, video, and security services all on a single platform, providing flexibility and future-proofing for growing networks.

2. Modular Design:

   • The ISR4351 is part of the Cisco 4000 Series, which features a modular design for flexibility and scalability. The router includes three onboard network modules and two service module slots, allowing businesses to add different services, interfaces, and WAN connectivity options.
   • This modularity allows for customized configurations based on specific needs and the ability to scale the router as requirements evolve.

3. Integrated Security:

   • The ISR4351 is designed with a comprehensive suite of security services integrated directly into the router, such as firewall protection, intrusion prevention system (IPS), VPN (IPsec, SSL VPN), URL filtering, and content security.
   • Advanced Threat Protection is built into the router, which includes features such as Cisco Umbrella, Cisco Advanced Malware Protection (AMP), and Cisco Firepower integration, making it an excellent choice for businesses requiring enterprise-level security.
   • The VPN support allows for secure remote connectivity, with up to 1.5 Gbps of VPN throughput, making it suitable for branch offices that need secure connections to the central network.

4. Voice and Collaboration Support:

   • The ISR4351 is ideal for organizations that use unified communications and VoIP services. It supports Cisco Unified Communications Manager Express (CME), Cisco Unity Express (CUE), and SIP trunking, making it an excellent choice for branch offices that require voice services and collaboration tools.
   • With support for both voice and video, the router helps ensure high-quality, real-time communication, even in demanding environments.

5. Cloud Integration & SD-WAN:

   • The ISR4351 is cloud-ready and can be integrated with Cisco’s cloud-based services like Cisco Meraki, Cisco Umbrella, and Cisco SD-WAN for more intelligent, scalable, and secure WAN solutions.
   • It supports SD-WAN (Software-Defined WAN) for organizations looking to implement more flexible and cost-effective wide-area networks. With SD-WAN, businesses can optimize their network performance, ensure application reliability, and reduce costs by using multiple WAN links efficiently.

6. Quality of Service (QoS):

   • The router supports advanced QoS features, such as traffic shaping, policing, and prioritization of critical applications (e.g., voice, video, and mission-critical data). With application visibility and control, it ensures that high-priority traffic is delivered with low latency and minimal jitter, even during periods of network congestion.
   • Flexible QoS policies allow network administrators to define how different types of traffic are treated, ensuring that the most important services always get the bandwidth they need.

7. High Availability:

   • The ISR4351 offers features that ensure network reliability and high availability, including redundant power supplies, hot-swappable components, and redundant WAN connections. This ensures continuous service even in the event of hardware failure.
   • It also supports dual power supply options, which increase reliability and reduce downtime in case of power failure.

8. Virtualization Support:

   • The ISR4351 supports virtualized network functions (VNFs), enabling organizations to run multiple virtualized services on the same hardware. This is useful for businesses adopting network virtualization or those that need to run virtual instances of services like firewalling, VPN, or WAN optimization.
   • This virtualization capability helps businesses save on hardware costs, as they can consolidate services and applications on a single router.

9. Energy Efficiency:

   • The ISR4351 is designed with energy efficiency in mind, helping businesses lower power consumption while delivering high performance. The router is optimized for low-power operation, making it an environmentally friendly choice for network infrastructures.
   • Cisco’s energy-efficient power supplies and intelligent power management ensure that the ISR4351 is both cost-effective and environmentally conscious.

10. Simplified Management and Automation:

    • The ISR4351 is designed for easy management and network automation. It supports Cisco DNA Center for network management and automation, enabling faster and more efficient network deployments.
    • Cisco Configuration Professional (CCP) and Cisco Prime Infrastructure provide intuitive GUI-based management and monitoring capabilities, helping administrators configure, monitor, and troubleshoot the router.

Specifications:

• Form Factor: 1U rackmountable
• WAN Ports:
  • 2 x Gigabit Ethernet WAN Ports
  • 2 x Gigabit Ethernet LAN Ports
• Network Modules:
  • Three onboard network module slots
  • Two onboard service module slots
• Performance:
  • Up to 2 Gbps of throughput
  • Up to 1.5 Gbps of VPN throughput
  • Up to 1 Gbps of threat defense throughput
• Power:
  • Redundant power supply options
  • Low power consumption for energy efficiency
• Licensing:
  • Cisco Smart Licensing
  • Modular licenses for different services (e.g., routing, security, VPN, QoS)

Use Cases:

1. Branch Office Routing:

   • The ISR4351 is an excellent choice for branch office deployments, offering scalable WAN connectivity, secure internet access, and high-performance routing. It supports advanced services like VPNs, firewall protection, and application optimization, making it ideal for remote locations that require secure and high-speed network access.

2. Unified Communications and VoIP:

   • For organizations with remote offices or locations using VoIP and unified communications, the ISR4351 offers a complete voice solution, including SIP trunking, CME, and CUE. The router provides reliable and high-quality voice and video services for remote teams, ensuring clear communication.

3. WAN Optimization and SD-WAN:

   • The ISR4351 is well-suited for businesses that need to implement SD-WAN solutions to optimize wide-area network (WAN) performance. It can prioritize critical applications and ensure that the cloud and SaaS applications are delivered with the best possible performance.
   • With WAN optimization, the ISR4351 reduces latency and improves the performance of applications that require high bandwidth, such as video conferencing, cloud applications, and file transfers.

4. Secure Remote Connectivity:

   • The router’s VPN support allows remote employees and branch offices to securely connect to the corporate network over the internet. Whether for site-to-site VPNs or remote access VPNs, the ISR4351 ensures encrypted communication and secure access to critical resources.

5. High-Security Networks:

   • The ISR4351 is ideal for businesses that require high security at the network edge. With advanced threat defense features, including intrusion prevention, anti-malware, URL filtering, and VPN encryption, the router helps ensure that both data and users are protected from external and internal threats.

6. Virtualized Network Functions (VNFs):

   • Businesses adopting network virtualization can benefit from the ISR4351‘s ability to run virtualized network functions (VNFs). This enables running multiple network services, such as firewalls, VPNs, and intrusion detection systems (IDS), on the same physical hardware, reducing hardware costs and simplifying network management.