C3945-VSEC-PSRE/K9 Cisco 3945 Sre 900 Security Services Fast Ethernet Router

Enterprise-Grade Routing Platform for Secure Network Infrastructure

The Cisco C3945-VSEC-PSRE/K9 integrated services router is engineered to deliver scalable performance, advanced protection, and flexible connectivity for demanding enterprise environments. Designed to support high-throughput data transfer and secure communications, this platform combines routing efficiency with integrated services in a single solution.

Key Product Identification

• Brand: Cisco
• Model Number: C3945-VSEC-PSRE/K9
• Device Category: Enterprise Router
• Interface Type: Fast Ethernet with multi-speed support

Robust Networking and Protocol Compatibility

Multi-Layer Data Communication Support

• Supports Ethernet, Fast Ethernet, and Gigabit Ethernet for versatile deployment
• Seamless integration with modern and legacy infrastructures

Transport and Tunneling Protocols

• Handles TCP/IP and UDP/IP for reliable data exchange
• Includes RSVP for traffic reservation and prioritization
• Supports secure tunneling via IPSec, L2TPv3, and PPPoE

Dynamic and Static Routing Flexibility

• Advanced routing protocols including OSPF, IS-IS, BGP, and EIGRP
• Multicast capabilities with DVMRP, PIM-SM, and PIM-SSM
• Supports IGMPv3 for efficient group communication
• Enables GRE tunneling and Policy-Based Routing (PBR)
• Compatible with both IPv4 and IPv6 static routing

Integrated Voice and Unified Communications

Scalable Telephony Support

• Supports up to 350 sessions with Cisco Unified Communications Manager Express
• Handles up to 1200 SRST sessions for failover telephony resilience

Wide Codec Compatibility

• Voice codecs supported include G.711, G.722, G.723.1, G.728, G.729, and G.726
• Optimized for high-quality voice transmission over IP networks

Advanced Security and Remote Administration

Secure Management Capabilities

• Remote monitoring via SNMP and RMON protocols
• Simplified administration and network visibility

Built-In Encryption and Protection

• SSL encryption ensures secure data communication
• Integrated firewall features with NAT and VPN support
• Hardware-based encryption enhances performance and security

Traffic Control and Access Policies

• Implements CBWFQ for intelligent bandwidth allocation
• Uses WRED to prevent congestion and packet loss
• Advanced ACLs for granular access control and filtering

Compliance and Industry Certifications

Standards Adherence

• Conforms to IEEE 802.3, IEEE 802.1Q, and IEEE 802.1ah networking standards

Regulatory Certifications

• Certified under FCC, UL, IEC standards
• Complies with CISPR 22 Class A and CISPR 24
• Aligned with EN55024 electromagnetic compatibility requirements

Memory and Storage Capabilities

Expandable System Resources

• Pre-installed 1 GB RAM, expandable up to 2 GB
• 256 MB flash memory, upgradeable to 8 GB

Integrated Storage Capacity

• Supports up to 1 TB internal storage for logs and applications

Flexible Interfaces and Expansion Options

WAN and USB Connectivity

• Equipped with 3 x 10/100/1000Base-T RJ-45 WAN ports
• Includes 3 USB Type-A ports and 1 Mini-USB interface

Modular Expansion Slots

• 4 EHWIC slots for enhanced WAN connectivity
• 3 PVDM slots for voice processing modules
• 2 CompactFlash slots for additional storage
• 4 service module slots for application expansion
• 1 ISM slot for integrated service modules

Reliable Power Configuration

Internal Power Supply Specifications

• Supports AC input range of 120V to 230V
• Compatible with 50 Hz and 60 Hz frequencies
• Designed for continuous enterprise operation

Preloaded Software Capabilities

Integrated Operating System and Features

• Includes Cisco IOS Unified Communications for voice services
• Embedded Cisco IOS Security for advanced threat protection
• Supports scalable deployment across enterprise networks

Cisco C3945-VSEC-PSRE/K9 3945 Fast Ethernet Router Overview

The Cisco C3945-VSEC-PSRE/K9 3945 SRE 900 Security Services Fast Ethernet Router represents a robust and scalable solution within enterprise-grade networking infrastructure, engineered to meet the evolving demands of modern business environments. Built on the foundation of Cisco’s Integrated Services Router (ISR) G2 platform, this model integrates advanced routing, security, voice, and application services into a single, high-performance chassis. Its architecture is designed to support branch offices, mid-sized enterprises, and distributed organizations that require consistent connectivity, high throughput, and advanced security capabilities.

Integrated Services Router Architecture

The ISR G2 architecture embodied in the Cisco 3945 platform enables seamless convergence of data, voice, video, and application services. This router is designed to deliver high performance while reducing operational complexity through hardware-accelerated services and modular expandability. With embedded service modules and support for the Services Ready Engine (SRE), the router provides virtualization capabilities that allow businesses to deploy applications directly on the network edge.

Services Ready Engine (SRE) 900 Integration

The SRE 900 module included in the C3945-VSEC-PSRE/K9 enhances the router’s capabilities by enabling onboard application hosting and virtualization. This allows organizations to deploy critical applications such as WAN optimization, application acceleration, and security services without requiring separate hardware appliances. The SRE architecture supports flexible deployment models, making it easier for IT teams to manage and scale services as business needs evolve.

Application Hosting Capabilities

The integrated SRE 900 provides a platform for running virtualized applications directly within the router, eliminating the need for additional physical servers at branch locations. This not only reduces hardware footprint but also simplifies management and lowers operational costs. Organizations can deploy services such as intrusion detection systems, network monitoring tools, and custom enterprise applications directly on the router.

Advanced Security Services and Threat Protection

The Cisco C3945-VSEC-PSRE/K9 is engineered with a comprehensive suite of security features designed to protect enterprise networks from evolving threats. The integrated security services include firewall capabilities, intrusion prevention systems (IPS), VPN support, and advanced threat detection mechanisms. These features ensure that data integrity, confidentiality, and availability are maintained across the network.

Virtual Private Network (VPN) Capabilities

The router supports a wide range of VPN technologies, including IPsec, SSL VPN, and Dynamic Multipoint VPN (DMVPN). These capabilities enable secure remote access for employees and secure site-to-site connectivity between branch offices and headquarters. Hardware acceleration ensures that VPN performance remains high even under heavy traffic conditions.

Firewall and Intrusion Prevention

The integrated firewall provides stateful packet inspection, access control, and policy enforcement to protect the network perimeter. Combined with intrusion prevention capabilities, the router can detect and mitigate malicious traffic in real time. This layered security approach ensures comprehensive protection against both external and internal threats.

Encryption and Data Protection

Advanced encryption standards supported by the router ensure that sensitive data is protected during transmission. Hardware-based encryption accelerates performance while maintaining strong security protocols. This is particularly important for industries that require compliance with regulatory standards, such as finance, healthcare, and government sectors.

Performance and Scalability Features

The Cisco 3945 router is designed to deliver high throughput and reliable performance for demanding enterprise applications. Its multi-core processor architecture and enhanced memory capacity enable it to handle high volumes of traffic while maintaining low latency. The router’s scalability ensures that it can adapt to growing network demands without requiring significant infrastructure changes.

High Throughput and Processing Power

The router’s advanced processing capabilities allow it to support bandwidth-intensive applications such as video conferencing, cloud computing, and large-scale data transfers. Hardware acceleration ensures that performance remains consistent even when multiple services are running simultaneously.

Modular Expansion Options

The Cisco C3945 platform supports a wide range of interface modules, service modules, and network interface cards. This modularity allows organizations to customize the router according to their specific requirements. Whether adding additional Ethernet ports, voice interfaces, or storage modules, the router can be easily expanded to meet evolving needs.

Future-Proof Networking

The scalability of the Cisco 3945 ensures that it remains relevant in rapidly changing technology environments. With support for software upgrades and new service modules, organizations can extend the lifespan of their investment while adapting to new networking trends and requirements.

Connectivity and Interface Capabilities

The Cisco C3945-VSEC-PSRE/K9 offers a comprehensive range of connectivity options designed to support diverse networking environments. With multiple Fast Ethernet and Gigabit Ethernet ports, the router provides flexible connectivity for both LAN and WAN deployments. The inclusion of expansion slots allows for additional interfaces to be added as needed.

Fast Ethernet and Gigabit Ethernet Support

The router includes integrated Fast Ethernet ports along with support for Gigabit Ethernet modules, enabling high-speed connectivity for both internal and external networks. This ensures efficient data transfer and seamless communication between devices.

WAN Connectivity Options

The router supports various WAN technologies, including MPLS, broadband, and leased line connections. This flexibility allows organizations to choose the most suitable connectivity solution based on their operational requirements and budget constraints.

Unified Communications Integration

The Cisco 3945 router is designed to support unified communications solutions, including voice over IP (VoIP) and video conferencing. This integration enables organizations to streamline communication processes and improve collaboration across distributed teams.

Reliability and High Availability

Reliability is a critical aspect of enterprise networking, and the Cisco C3945-VSEC-PSRE/K9 is designed to deliver consistent performance with minimal downtime. The router incorporates features such as redundant power supplies, failover mechanisms, and advanced monitoring capabilities to ensure continuous operation.

Redundant Power and Hardware Components

The router supports redundant power supplies, ensuring that operations continue uninterrupted in the event of a power failure. This feature is essential for mission-critical environments where downtime can result in significant financial losses.

Failover and Load Balancing

Advanced failover mechanisms and load balancing capabilities ensure that network traffic is efficiently distributed and that backup systems are activated in case of hardware or network failures. This enhances overall network resilience and reliability.

Deployment Scenarios and Use Cases

The Cisco C3945-VSEC-PSRE/K9 is suitable for a wide range of deployment scenarios, making it a versatile choice for organizations across various industries. Its combination of performance, security, and scalability makes it ideal for branch offices, enterprise campuses, and remote locations.

Enterprise Branch Networking

For branch offices, the router provides a centralized solution for routing, security, and application hosting. This simplifies network architecture and reduces the need for multiple standalone devices.

Data Center Edge Connectivity

In data center environments, the router can be used as an edge device to manage traffic between internal networks and external connections. Its high throughput and advanced security features ensure efficient and secure data transmission.

Remote and Distributed Work Environments

The router’s VPN and remote access capabilities make it an ideal solution for organizations with distributed workforces. Employees can securely connect to the corporate network from remote locations, ensuring productivity and collaboration.

Energy Efficiency and Cost Optimization

The Cisco C3945-VSEC-PSRE/K9 is designed with energy efficiency in mind, helping organizations reduce operational costs while maintaining high performance. Its integrated design reduces the need for multiple devices, resulting in lower power consumption and simplified infrastructure.

Reduced Hardware Footprint

By integrating multiple services into a single device, the router minimizes the need for additional hardware, reducing both capital and operational expenses. This streamlined approach also simplifies maintenance and management.

Power Management Features

Advanced power management features ensure that the router operates efficiently, adjusting power usage based on workload requirements. This contributes to overall energy savings and sustainability.

Long-Term Investment Value

The scalability and modularity of the Cisco 3945 router make it a long-term investment for organizations. With the ability to upgrade and expand capabilities, businesses can continue to leverage the router as their network requirements evolve.

Software and Operating System Support

The Cisco C3945-VSEC-PSRE/K9 operates on Cisco IOS software, providing a robust and feature-rich platform for network management and configuration. The operating system supports a wide range of protocols, services, and security features, ensuring compatibility with diverse network environments.

Advanced Routing Protocols

The router supports multiple routing protocols, including OSPF, EIGRP, BGP, and RIP, enabling efficient and dynamic routing across complex networks. These protocols ensure optimal path selection and network performance.

Quality of Service (QoS)

Quality of Service features allow administrators to prioritize critical applications and manage bandwidth allocation effectively. This ensures that latency-sensitive applications such as voice and video receive the necessary resources for optimal performance.

Centralized Management Integration

The router can be integrated with centralized management platforms, allowing IT teams to monitor and control network operations from a single interface. This enhances efficiency and reduces the complexity of managing large-scale networks.

Customization and Flexibility

The Cisco C3945-VSEC-PSRE/K9 offers a high degree of customization, enabling organizations to tailor the router to their specific needs. Its modular design and extensive feature set provide the flexibility required to adapt to diverse networking requirements.

Service Module Compatibility

The router supports a wide range of service modules, allowing organizations to add functionality such as storage, security, and application hosting. This flexibility ensures that the router can be customized to meet specific business needs.

Interface Expansion Options

With multiple expansion slots, the router can accommodate additional interfaces, enabling organizations to scale their network infrastructure as needed. This ensures that the router can adapt to changing connectivity requirements.

Adaptability to Emerging Technologies

The Cisco 3945 platform is designed to support emerging technologies, ensuring that organizations can integrate new solutions without requiring a complete infrastructure overhaul. This adaptability makes it a future-ready networking solution.