1. Pengenalan
This manual provides essential information for the installation, operation, maintenance, and troubleshooting of the Cisco ISR 4431 Integrated Services Router. The Cisco 4000 family of Integrated Services Routers (ISR) is designed to enhance WAN communications in enterprise branch environments. It offers advanced network capabilities and convergence to support application-aware networking in distributed enterprise sites, facilitating communication with private data centers and public clouds across various link types, including Multiprotocol Label Switching (MPLS) VPNs and the Internet.
2. Maklumat Keselamatan
Always observe standard safety precautions when working with electrical equipment. Ensure proper grounding and ventilation. Do not operate the device in wet or excessively dusty environments. Refer to local electrical codes for installation requirements.
3. Kandungan Pakej
Sahkan bahawa pakej anda mengandungi item berikut:
- Cisco ISR 4431 Router
- Kit pemasangan rak
- Power cord (country-specific)
- Dokumentasi (manual ini, maklumat keselamatan)
4. Persediaan dan Pemasangan
4.1 Pemasangan Fizikal
The Cisco ISR 4431 is designed for rack-mounting. Follow these steps for secure installation:
- Sediakan Rak: Ensure the rack is stable and has adequate space and ventilation for the router.
- Pasang Kurungan Pemasangan: Use the provided rack mounting kit to attach the brackets to the sides of the router.
- Lekapkan Penghala: Carefully slide the router into the rack and secure it with the appropriate screws.
- Pastikan Aliran Udara: Maintain proper clearance around the router for optimal cooling.

Rajah 1: Depan view of the Cisco ISR 4431 Router, showing ports and ventilation. This image illustrates the physical appearance of the device, including its black chassis and rack-mountable design.
4.2 Menyambungkan Penghala
After physical installation, connect the necessary cables:
- Sambungan Kuasa: Connect the power cord to the router's power input and then to a grounded electrical outlet.
- Jaringan rangkaian: Connect WAN and LAN cables to the appropriate Ethernet ports.
- Port USB: The router features two USB 2.0 ports for connecting compatible devices or storage.
- Pelabuhan Konsol: For initial configuration, connect a console cable to a management workstation.
4.3 Kuasa Awal Hidup
Once all connections are secure, power on the router. Observe the system LEDs for boot-up status. The router will load its operating system, Cisco IOS IP Base.
5. Operasi dan Konfigurasi
The Cisco ISR 4431 operates on Cisco IOS IP Base. Configuration is typically performed via the command-line interface (CLI) accessed through the console port or remotely via SSH/Telnet after initial setup.
5.1 Basic Configuration Steps
- Akses CLI: Connect to the router via console or network.
- Wizard Persediaan Awal: Follow the prompts for basic network settings, hostname, and passwords.
- Konfigurasi antara muka: Configure IP addresses, subnet masks, and other parameters for WAN and LAN interfaces.
- Protokol Penghalaan: Implement necessary routing protocols (e.g., OSPF, EIGRP, BGP) for network communication.
- Tetapan Keselamatan: Configure access control lists (ACLs), firewall rules, and VPNs as required for secure operations.
For detailed configuration commands and advanced features, refer to the official Cisco IOS documentation available on the Cisco webtapak.
6. Penyelenggaraan
6.1 Kemas Kini Perisian Tegar
Semak sokongan Cisco secara berkala website for the latest firmware (Cisco IOS) updates. Applying updates can improve performance, add new features, and address security vulnerabilities. Follow Cisco's recommended procedures for firmware upgrades to avoid service interruptions.
6.2 Pembersihan
Keep the router free from dust and debris. Use a soft, dry cloth for external cleaning. Ensure ventilation openings are clear to prevent overheating. Do not use liquid cleaners directly on the device.
6.3 Pertimbangan Alam Sekitar
Operate the router within its specified temperature and humidity ranges. Ensure adequate ventilation to prevent heat buildup, which can affect performance and longevity.
7. Penyelesaian masalah
Bahagian ini menyediakan panduan untuk isu biasa yang mungkin anda hadapi.
7.1 Isu Kuasa
- Tiada Kuasa: Verify the power cord is securely connected to both the router and a working electrical outlet. Check the power switch position.
- LED Kuasa Dimatikan: If the power LED is off, ensure the power supply is functioning correctly.
7.2 Masalah Ketersambungan Rangkaian
- Tiada Lampu Pautan: Check Ethernet cable connections. Ensure the connected device is powered on and functioning.
- Tidak Dapat Mengakses Penghala: Verify IP address configuration on your management workstation. Ensure firewall rules are not blocking access.
- Internet Access Failure: Check WAN interface status, ISP connection, and routing table entries.
7.3 Tetapkan Semula Sistem
In some cases, a system reset may be necessary. Consult Cisco documentation for proper reset procedures, as improper resets can lead to configuration loss.
8. Spesifikasi Teknikal
| Ciri | Spesifikasi |
|---|---|
| Jenama | Cisco |
| Nama Model | ISR 4431 |
| Nombor Model Item | ISR4431/K9 |
| RAM | 4000 MB |
| Saiz Memori Denyar | 8000 MB |
| Sistem Operasi | Cisco IOS IP Base |
| Platform Perkakasan | PC |
| Bilangan USB 2.0 Port | 2 |
| Teknologi Ketersambungan | Ethernet |
| Dimensi Produk (LxWxH) | 22.8 x 6 x 17.6 inci |
| Berat Barang | 0.32 auns |
| warna | Hitam |
| Voltage | 240 Volt |
| Penggunaan yang Disyorkan | Perniagaan |
| Komponen yang Disertakan | Router, Rack mounting kit |
9. Maklumat Waranti
The Cisco ISR 4431 Router is covered by a manufacturer's warranty. For specific terms, conditions, and duration of the warranty, please refer to the documentation provided with your purchase or visit the official Cisco webtapak. Simpan bukti pembelian anda untuk tuntutan waranti.
10. Sokongan Pelanggan
For technical assistance, additional documentation, or to report issues, please visit the official Cisco support website or contact Cisco customer service. Ensure you have your product model number (ISR4431/K9) and serial number ready when seeking support.
Cisco Rasmi Webtapak: www.cisco.com





