Introduction
This user manual provides essential information for the proper setup, configuration, operation, and maintenance of your Cisco ASR-920-4SZ-A Aggregation Services Router. Please read this manual thoroughly before attempting to install or operate the device to ensure safe and efficient performance.
Setup and Installation
1. Unpacking and Inspection
- Carefully remove the router from its packaging.
- Inspect the router for any signs of physical damage that may have occurred during shipping. If damage is found, contact your vendor immediately.
- Verify that all components listed in the packing list are present.
2. Physical Installation
The Cisco ASR-920-4SZ-A router is designed for rack-mounting. Ensure adequate ventilation and clearance around the unit.
- Mount the router securely in a standard 19-inch equipment rack using the provided rack-mount kit.
- Ensure the installation site meets environmental requirements (temperature, humidity) as specified in the product datasheet.
3. Connecting Power
The router supports dual power supplies for redundancy. Connect both power cords if available.
Figure 1: Rear panel of the Cisco ASR-920-4SZ-A Router. Note the two power supply inlets on the left, followed by various Ethernet and fiber optic ports, and status LEDs on the right.
- Connect the power cords to the power supply inlets on the rear of the router.
- Plug the other end of the power cords into a grounded AC power outlet.
- Verify that the power supply LEDs illuminate, indicating proper power connection.
4. Network Connections
Connect your network cables to the appropriate ports on the router.
- Management Port: Connect an Ethernet cable from your management workstation to the dedicated management port (if available) for initial configuration.
- Ethernet Ports: Connect your network devices (switches, servers, etc.) to the 12 Ethernet ports.
- Fiber Optic Ports: Utilize the SFP/SFP+ slots for fiber optic connections as required by your network topology.
Operating Instructions
1. Initial Configuration
Access the router's command-line interface (CLI) via console port or SSH for initial setup.
- Connect a console cable to the router's console port and your computer.
- Use a terminal emulation program (e.g., PuTTY, Tera Term) with the following settings: 9600 baud, 8 data bits, no parity, 1 stop bit, no flow control.
- Follow the on-screen prompts to configure basic network settings, IP addresses, and administrative credentials.
2. Basic Operation
Once configured, the router will begin forwarding traffic according to its routing tables and policies.
- Monitoring Status: Use CLI commands like show interfaces, show ip route, and show version to monitor the router's operational status.
- Traffic Management: Implement QoS policies and access control lists (ACLs) as needed for traffic prioritization and security.
Maintenance
1. Routine Checks
- Regularly check the status LEDs on the front and rear panels for any fault indicators.
- Monitor system logs for errors or warnings.
- Ensure proper airflow around the router and that cooling fans are operating correctly.
2. Firmware Updates
Keep the router's firmware updated to the latest stable version to ensure optimal performance and security.
- Download firmware updates only from the official Cisco support website.
- Follow Cisco's recommended procedure for firmware upgrades to avoid service interruption.
3. Cleaning
- Periodically clean the exterior of the router with a soft, dry cloth.
- Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners directly on the device.
Troubleshooting
This section provides solutions to common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Router not powering on | Power cord disconnected, faulty power supply, no power from outlet. | Check power cord connections. Verify power outlet functionality. Test with a different power supply if available. |
| No network connectivity | Incorrect cable connection, port disabled, incorrect IP configuration, firewall blocking. | Verify cable connections. Check port status in CLI. Review IP address and subnet mask settings. Check firewall rules. |
| Slow network performance | Network congestion, faulty cable, duplex mismatch, outdated firmware. | Monitor network utilization. Replace suspected faulty cables. Ensure duplex settings match on both ends. Update firmware. |
Specifications
Key technical specifications for the Cisco ASR-920-4SZ-A Router:
| Feature | Detail |
|---|---|
| Brand | Cisco |
| Model | ASR-920-4SZ-A |
| Connectivity Technology | Ethernet |
| Compatible Devices | Personal Computer |
| Total Ethernet Ports | 1 |
| Number of Ports | 1 |
Note: Specifications are subject to change. Refer to the official Cisco product datasheet for the most current and complete information.
Warranty and Support
For detailed warranty information and technical support, please refer to the official Cisco website or contact Cisco customer service directly. Warranty terms and conditions may vary by region and product.
Cisco Support Resources:
- Online documentation and knowledge base.
- Software downloads and updates.
- Technical Assistance Center (TAC) contact information.
