Introducció
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.
Configuració i instal·lació
1. Desembalatge i inspecció
- 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.
- Verifiqueu que hi hagi tots els components que figuren a la llista d'embalatge.
2. Instal·lació física
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. Potència de connexió
The router supports dual power supplies for redundancy. Connect both power cords if available.

Figura 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.
- Connecteu l'altre extrem dels cables d'alimentació a una presa de corrent de CA amb connexió a terra.
- Verify that the power supply LEDs illuminate, indicating proper power connection.
4. Connexions de xarxa
Connect your network cables to the appropriate ports on the router.
- Port de gestió: Connect an Ethernet cable from your management workstation to the dedicated management port (if available) for initial configuration.
- Ports Ethernet: 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.
Instruccions de funcionament
1. Configuració Inicial
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.
- Feu servir un programa d'emulació de terminal (per exemple, PuTTY, Tera Term) amb els paràmetres següents: 9600 baud, 8 bits de dades, sense paritat, 1 bit d'aturada, sense control de flux.
- Follow the on-screen prompts to configure basic network settings, IP addresses, and administrative credentials.
2. Funcionament bàsic
Once configured, the router will begin forwarding traffic according to its routing tables and policies.
- Estat de seguiment: Use CLI commands like mostrar interfícies, mostra la ruta IP, i mostrar la versió to monitor the router's operational status.
- Gestió del trànsit: Implement QoS policies and access control lists (ACLs) as needed for traffic prioritization and security.
Manteniment
1. Comprovacions rutinàries
- Regularly check the status LEDs on the front and rear panels for any fault indicators.
- Supervisar els registres del sistema per detectar errors o avisos.
- Ensure proper airflow around the router and that cooling fans are operating correctly.
2. Actualitzacions de firmware
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 weblloc.
- Follow Cisco's recommended procedure for firmware upgrades to avoid service interruption.
3. Neteja
- Netegeu periòdicament l'exterior del router amb un drap suau i sec.
- Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners directly on the device.
Resolució de problemes
Aquesta secció ofereix solucions a problemes comuns que podeu trobar.
| Problema | Causa possible | Solució |
|---|---|---|
| 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 hi ha connectivitat de xarxa | 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. |
| Rendiment lent de la xarxa | Network congestion, faulty cable, duplex mismatch, outdated firmware. | Monitor network utilization. Replace suspected faulty cables. Ensure duplex settings match on both ends. Update firmware. |
Especificacions
Key technical specifications for the Cisco ASR-920-4SZ-A Router:
| Característica | Detall |
|---|---|
| Marca | Cisco |
| Model | ASR-920-4SZ-A |
| Tecnologia de connectivitat | Ethernet |
| Dispositius compatibles | Ordinador personal |
| Ports Ethernet totals | 1 |
| Nombre de Ports | 1 |
Note: Specifications are subject to change. Refer to the official Cisco product datasheet for the most current and complete information.
Garantia i Suport
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.





