Chapter 3 Configuring General Router Features

Logging In to a Router

 

F I N A L D R A F T — C i s c o C o n f i d e n t i a l

 

 

 

 

Command or Action

Purpose

Step 6

 

 

Press Enter.

(Optional) Initiates communications with the RSP.

 

 

• If no text or router prompt appears when you start the Telnet session,

 

 

press Enter.

 

 

• The router displays the prompt: Username:

Step 7

 

 

Log in to the router.

Establishes your access rights for the router management session.

 

 

Type a username and password when prompted.

 

 

 

Connecting Through the Management Ethernet Interface

The Management Ethernet interface allows you to manage the router using a network connection. Before using the Management Ethernet interface, configure it as described in the “Configuring the Management Ethernet Interface” section on page 3-35.

Once configured, the network connection takes place between client software on a workstation computer and a server process within the router. The type of client software you use depends on the server process you want to use. The Cisco IOS XR Software supports the following client and server services:

•Telnet clients can connect to a Telnet server in the router. The Telnet server is disabled by default and can be enabled with the telnet ipv4 server command in global configuration mode.

•Secure Shell (SSH) clients can connect to an SSH server in the router. The SSH server is disabled by default and can be enabled with the ssh server command in global configuration mode. The SSH server handles both Secure Shell Version 1 (SSHv1) and SSHv2 incoming client connections for IPv4 address families.

To start a Telnet network connection, you start the Telnet client software with a command similar to the following:

telnet ManagementEthernetInterfaceIPaddress

For specific instructions on connecting to the router through a Telnet or SSH client, see the instructions for that software.

Ask your system administrator for the IP address of the Management Ethernet interface.

When the Telnet session is established, the router prompts you to log in, as described in the “Logging In to a Router” section on page 3-5.

Logging In to a Router

The login process can require users to enter a password or a username and password before accessing the router CLI. The user groups to which your username is assigned determine which commands you can use.

Once you log in to the router, you can manage the entire router.

When you log in, the username and password may be validated by any of the following services:

•Usernames configured on the router (username command in global configuration mode)

•Root-system usernames that are configured

•Passwords configured for the router console and auxiliary ports (password or secret command in line configuration mode)

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

 

OL-17502-01

3-5

 

 

 

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Cisco Systems A9KMOD80TR, ASR 9000 manual Logging In to a Router, Connecting Through the Management Ethernet Interface
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A9KMOD80TR, A9K24X10GETR, ASR 9000 specifications

Cisco Systems has long been a leader in networking technology, providing cutting-edge solutions for service providers and enterprise organizations alike. Among their standout products is the Cisco ASR 9000 Series Aggregation Services Routers, notably the A9K24X10GETR and the A9KMOD80TR models. These routers are engineered to deliver unmatched performance, scalability, and versatility for networks that require high bandwidth and low latency.

The Cisco ASR 9000 Series is built for the needs of today's complex service provider and enterprise networks. A significant feature of the A9K24X10GETR is its 24-port 10-Gigabit Ethernet module. This functionality allows for high-density connectivity, making it ideal for aggregating numerous connections to different parts of a network while maintaining optimal performance. Whether used for Internet service providers delivering high-speed connectivity or for enterprises looking to connect multiple branches, the A9K24X10GETR provides robust and reliable data transmission.

Further enhancing the capabilities of the ASR 9000 is the A9KMOD80TR module, which supports an extensive range of services. This module is designed to run a variety of technologies, including Layer 2 and Layer 3 services, MPLS (Multiprotocol Label Switching), and IPv6. Its ability to integrate seamlessly into existing infrastructures while providing the advanced features customers demand makes it an invaluable asset for network engineering teams.

Another cutting-edge technology present in the ASR 9000 Series is its support for eBGP (External Border Gateway Protocol), which plays a critical role in managing traffic across multiple networks. The routers are equipped with advanced telemetry features, empowering operators with real-time insights into network performance and health. Additionally, they come with integrated security features that protect against DDoS threats and other vulnerabilities.

In summary, Cisco's ASR 9000 Series, particularly the A9K24X10GETR and A9KMOD80TR, combines high-density connections, extensive service support, and advanced security and telemetry capabilities. These routers are perfect for demanding environments where reliable performance and adaptability are crucial. With their focus on innovation and performance, Cisco continues to shape the future of networking technology.
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