Cisco ISR4321/K9 Integrated Service Router 4321 - 2 Ports
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SKU/MPN | Warranty | Price | Condition | You save |
---|---|---|---|---|
ISR4321/K9 | Six-Month (180 Days) | $69.25 | Excellent Refurbished | You save: $64.40 (48%) |
ISR4321/K9 | Six-Month (180 Days) | $341.97 | Factory-Sealed New Retail in Original Box (FSB) | You save: $535.53 (61%) |
Ports
The Cisco ISR4321/K9 Integrated Service Router is equipped with 2 Gigabit Ethernet RJ-45 ports. These ports play a crucial role in providing connectivity and facilitating communication between various devices in a network. In this section, we will explore the benefits and importance of these ports for users.
Overview of the Cisco ISR4321/K9 Service Router
Manufacturer Details
- Brand: Cisco
- Part Number: ISR4321/K9
- Product Line: 4000 Series
- Model Number: 4321
- Device Type: Router
Key Specifications
- Total Ports: 2
- USB Ports: Yes
- Powerline Connectivity: No
- Management Port: Yes
- Serial V.35 Interface: No
- Network (RJ-45) Ports: 2
Expansion Capabilities
- Expansion Slots: 4
- Slot Types:
- Smart Interface Card (SIC)
- Network Interface Module (NIM)
- Small Form-factor Pluggable
Network and Communication
- Network Technology: 10/100/1000Base-T
- Ethernet Standard: Gigabit Ethernet
Management and Protocols
Security Protocols
- Access Control Lists (ACL)
- Remote Authentication Dial-In User Service (RADIUS)
- Authentication, Authorization, and Accounting (AAA)
- IP Security (IPsec)
- Dynamic Multipoint VPN (DMVPN)
Memory Specifications
- Standard Memory: 4 GB
- Maximum Supported Memory: 8 GB
- Memory Type: DDR3 SDRAM
- Flash Storage: 4 GB
Power Requirements
- Input Voltage Options: 230 V AC, 120 V AC
- Power Supply Options: PoE, Power Supply
- Redundant Power Supply: Not Available
Enhanced Connectivity
The presence of 2 Gigabit Ethernet ports on the Cisco ISR4321/K9 router offers enhanced connectivity options for users. With multiple ports available, users can connect a wide range of devices such as computers, printers, servers, and switches to the router simultaneously. This allows for seamless data transmission and efficient resource sharing within the network.
Increased Bandwidth
Having 2 Gigabit Ethernet ports means that users can take advantage of increased bandwidth capabilities. Each port supports Gigabit speeds, providing a maximum data transfer rate of up to 1000 Mbps. This high-speed connectivity enables faster file transfers, smoother multimedia streaming, and improved overall network performance.
Network Segmentation
Another significant benefit of having multiple ports is the ability to segment the network. Users can allocate specific ports for different purposes or departments within their organization. For example, one port can be dedicated to a guest network, while the other is reserved for internal use. This segregation enhances security, improves network management, and ensures better control over the flow of data.
Versatility
The presence of 2 Gigabit Ethernet ports on the Cisco ISR4321/K9 router offers versatility in terms of network setup and expansion. Users can choose between various connection types depending on their specific requirements. They can utilize these ports as WAN interfaces to connect to service providers or configure them as LAN interfaces to connect multiple devices within the local network.
Redundancy and Failover
Redundancy is a critical aspect of network infrastructure, ensuring continuous operation even in the event of a failure. The Cisco ISR4321/K9 router's dual Gigabit Ethernet ports allow for redundancy and failover configurations. Users can configure the ports as active-active or active-passive, providing backup connectivity in case one port or link fails. This feature ensures high availability and minimizes downtime.
Link Aggregation
Link aggregation, also known as port bonding, combines multiple physical connections into a single logical connection. With 2 Gigabit Ethernet ports, users can create link aggregation groups (LAGs) to increase bandwidth and provide load balancing across the ports. This feature is particularly useful for bandwidth-intensive applications, such as video conferencing or data center environments.
Scalability
The 2 Gigabit Ethernet ports on the Cisco ISR4321/K9 router contribute to its scalability capabilities. As the network requirements grow, users can easily expand their connectivity options by utilizing the available ports. This allows for seamless integration of additional devices and ensures that the router can accommodate future network expansion without requiring hardware upgrades.
Interconnectivity
The presence of multiple ports enables interconnectivity between various network components. Users can connect the Cisco ISR4321/K9 router to switches, access points, or other routers using these Gigabit Ethernet ports. This interconnectivity facilitates the creation of complex network topologies, allowing for efficient communication between different segments of the network.
Network Flexibility
The 2 Gigabit Ethernet ports provide users with increased network flexibility. They can configure the ports to suit their specific requirements, such as VLAN tagging, QoS prioritization, or access control policies. This flexibility ensures that the router can adapt to different network scenarios and meet the diverse needs of modern businesses.
In conclusion, the 2 Gigabit Ethernet ports on the Cisco ISR4321/K9 Integrated Service Router offer numerous benefits and play a vital role in enhancing connectivity, providing versatility, ensuring scalability, and enabling efficient network management. These ports provide users with increased bandwidth, network segmentation options, redundancy, link aggregation capabilities, and interconnectivity. With their ability to support high-speed data transmission and accommodate future network expansion, the dual Gigabit Ethernet ports make the Cisco ISR4321/K9 an ideal choice for businesses seeking a reliable and flexible networking solution.