Chapter 3 Installing the Router

Powering Up the Router

Cisco 3745 LED Indicators

The following indicator LEDs on the front of the chassis provide power, activity, and status information:

SYS—System status:

Blinking green during bootup—System is booting

Continuous green—System booted and OK

Blinking green continuing after bootup—System is in ROM monitor mode

Amber—System malfunction

ACT—Activity:

Blinking or continuous green during system activity, such as interrupts and packet transfers

SYS PS1 or SYS PS2—Chassis power supply number 1 or number 2 status:

Off—Powered off, not installed, or faulty

Continuous green—Installed and operating

Amber—Installed and powered off or faulty

–48V PS1 or –48V PS2—IP power module number 1 or number 2 status:

Off—Faulty or not installed

Continuous green—Installed and operating

Amber—Installed and powered off or faulty

Power-Up Procedure

To power up your Cisco router and verify that it goes through its initialization and self-test, follow this procedure. When the procedure is finished, the Cisco router is ready to configure.

If you encounter problems when you power up the router, see Appendix A, “Troubleshooting.” For information about the ROM monitor and the bootstrap program, see Appendix B, “Using the ROM Monitor.” For information about the configuration register, see Appendix C, “Configuration Register.”

Note To view the boot sequence through a terminal session, you must have a console connection to the Cisco router before it powers up.

Step 1 Make sure that your PC is powered up and connected as described in the “Checklist for Power Up” section on page 3-26.

Step 2 Move the power switch to the ON position.

Note Cisco 3745 routers may have one or two chassis power supplies. A router may operate with either power supply or with both power supplies in use. Two power supplies provide redundancy.

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Cisco Systems 3700 Series manual Power-Up Procedure, Cisco 3745 LED Indicators

3700 Series specifications

Cisco Systems 3700 Series routers are a pivotal part of Cisco's portfolio, designed for medium to large enterprises aiming to deliver secure and efficient networking capabilities. Introduced as a versatile solution, these routers provide a comprehensive blend of performance, scalability, and investment protection.

One of the standout features of the Cisco 3700 Series is its modular architecture, allowing organizations to customize their router according to specific needs. This modularity supports various modules for different functions, including voice, data, and video, making the 3700 Series an ideal choice for converged networking environments. Administrators can enhance functionality through an array of WAN and voice interface cards that adapt as the organization's needs evolve.

The 3700 Series is built on Cisco's IOS (Internetwork Operating System), ensuring robust and high-quality performance. It supports advanced routing protocols including EIGRP, OSPF, and BGP, facilitating efficient data transmission across diverse environments. This versatility helps organizations implement sophisticated multi-site connectivity and enables reliable performance in complex network scenarios.

Security is a paramount concern in modern networking, and the Cisco 3700 Series delivers with features such as integrated firewall services, VPN support, and intrusion detection capabilities. These security measures protect sensitive data and ensure secure communication between remote sites—critical in today’s cyber landscape.

Another key characteristic of the 3700 Series is its support for Quality of Service (QoS), which prioritizes time-sensitive traffic such as voice and video. By ensuring that critical applications receive the bandwidth they require, organizations can maintain the quality of service that their users expect.

Moreover, the Cisco 3700 Series is designed with redundancy in mind. Features like dual power supplies and hot-swappable fan trays enhance reliability and uptime, which are crucial for mission-critical applications.

Furthermore, energy efficiency is an increasingly important consideration in network design. The Cisco 3700 Series adheres to modern energy standards, helping reduce the overall carbon footprint while supporting high-performance capabilities.

In summary, the Cisco Systems 3700 Series routers stand out for their modularity, advanced routing capabilities, robust security features, and energy efficiency, making them an optimal choice for enterprises that not only need performance but also flexibility and reliability in their networking solutions. As businesses continue to evolve and adapt, the Cisco 3700 Series is a dependable partner in their connectivity journey, ensuring they can meet current demands while preparing for future challenges.