Cisco Systems 7401 quick start Debug

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Step 1 To be able to use a particular media port, use Cisco IOS to select the media type. This is done by using the media-typeinterface command:

media-type { gbic rj45 }

Example:

interface GigabitEthernet 0/0 media-type rj45

end

Step 2 After changing the media type, configure the speed and duplex to appropriately match the new interface characteristics. Changing the speed and duplex of a Cisco 7401ASR router Gigabit Ethernet interface is done using the speed and duplex interface commands.

Note These commands are only applicable when using the RJ-45 media.

speed { 10 100 1000 auto }

duplex { full half auto }

The following speed/duplex settings are supported:

Media Type

Speed

Duplex

 

-------------------------------------------------------

 

RJ45

10, 100, auto

full, half, auto

 

GBIC

ignored (1000)

ignored (full)

(By default on this interface)

-------------------------------------------------------

When using the GBIC media, there is also the additional negotiation auto command that is used to enable the IEEE 801.1z Gigabit Ethernet (1000 Mbps) autonegotiation protocol.

Step 3 To turn the negotiation auto feature off (it is on by default), issue the interface command no negotiation auto. This is useful for connecting to other Gigabit Ethernet equipment that does not support 802.1z autonegotiation.

Note The negotiation auto feature is not supported when using the media type rj-45and will be ignored if implementation is attempted.

If you change from the GBIC to the rj-45media type, you must set speed and duplex after you have executed the media-typecommand to ensure the interface will operate in the correct mode.

The media-type GBIC mode will always default to 1000-Mbps, full-duplex operation as this is the only configuration that is supported in this mode. Any speed or duplex commands are ignored while using this media type, even if present in the config (for example, show running-config).

Debug

Cisco IOS provides two commands to provide information on your interfaces: show interface GigabitEthernet 0/X (where X is either 0 or 1) and show controllers GigabitEthernet 0/X (where X is either 0 or 1).

The output of the show interface command is useful for determining the current operating mode of the interface (speed/duplex/media-type) and the current interface statistics.

The output of the show controller command displays more information specific to the Cisco 7401ASR router Gigabit Ethernet interface. For example, it shows the detected link status, speed, and duplex, and also determines the current status of autonegotiation and the link partners’ abilities (if it is an autonegotiation-capable interface).

The show controller command also displays the current operating state of the driver and the Ethernet controller hardware. The show controller command is a very powerful debugging aid, especially for Cisco engineers should you need help in debugging a problem. If you have any problems with your Gigabit Ethernet interfaces, you will need to provide this information to Cisco for analysis.

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Contents Cisco 7401ASR Router Documentation Survey Related Documentation Documentation and ResourcesOther Useful Links Obtain Documentation Cisco.comDocumentation Feedback Obtain Additional Publications and InformationOrdering Documentation Tools and Parts Prepare for InstallationSite Preparation and Unpacking Identify I/O Panel Ports Prepare for Workbench or Tabletop InstallationPrepare for Rack-Mount Installation About the CompactFlash Disk Install the PartsInstall the CompactFlash Disk Class 1 LED product Install the Gigabit Interface ConverterRemoving the Cover Replace the Sdram DimmDimm Remove and Install the DimmInserting the Port Adapter Replace the Port Adapter or Service AdapterPage Enabled Attaching the Rack-Mount Brackets to the Rear of the Chassis Attach the Rack-Mount Brackets-Chassis Rear-MountedAttaching the Cable-Management Bracket Attach the Cable-Management BracketInstalling the Cisco 7401ASR Router in a Four-Post Rack Four-Post Rack InstallationTwo-Post Rack Installation Attaching the Grounding Lug and Wire to the Chassis Chassis Ground Connection InstallationGigabit Ethernet and Fast Ethernet Port Connections Connect the Router to the NetworkConsole and Auxiliary Port Cable Connections Intra-Building Lightning Protection Fast Ethernet RJ-45 ConnectionsGbic Cabling and Connection Equipment Attaching the Mode-Conditioning Patch Cord Attach a Mode-Conditioning Patch CordCable Management Port Adapter Cable Connections Alarm Port ConnectionConnect DC-Input Power Connect Power to the RouterConnect AC-Input Power Observe System Startup and Performing a Basic Configuration LED Start the RouterConfigure Global Parameters Configure the RouterPerform a Basic Configuration Using the Setup Facility Enter enable secret, enable, and virtual terminal passwords Changing the Media Type Debug Reset the Interface Configure Port Adapter InterfacesConfigure Fast Ethernet Interfaces Page Snmp-server community public Ip routing Save the Running Configuration to NvramView Your System Configuration Check the Running Configuration SettingsPerform Complex Configurations Replace or Recover a Lost PasswordCisco TAC Website Obtain Technical AssistanceCisco TAC Escalation Center Page Page Page USA

7401 specifications

Cisco Systems 7401 is a robust router designed for numerous applications, particularly in service provider and enterprise environments. It stands out in the market due to its high capacity, innovative technology, and versatile features, making it an ideal choice for organizations looking for scalable and reliable network solutions.

At the core of the Cisco 7401 is its ability to handle high levels of data traffic efficiently. It supports advanced IP routing protocols, ensuring optimal routing decisions and improved network efficiency. The router is equipped with multi-service support, which allows it to simultaneously manage data, voice, and video traffic. This feature is essential for organizations aiming to unify their communications and enhance collaboration.

One of its notable technologies is the Cisco IOS (Internetwork Operating System), which powers the router with a comprehensive suite of network services. The IOS provides advanced security features, including firewalls and VPN support, protecting data integrity and ensuring secure connections across the network.

The 7401 also supports advanced Quality of Service (QoS) capabilities, enabling organizations to prioritize their network traffic effectively. This is particularly crucial for applications that require real-time data transmission, such as VoIP and video conferencing. By managing bandwidth allocation intelligently, the router ensures that critical applications receive the necessary resources to perform optimally while minimizing latency and disruptions.

In terms of performance, the Cisco 7401 is designed to support advanced network architectures, such as Software-Defined Networking (SDN) and Network Functions Virtualization (NFV). This adaptability allows organizations to implement flexible and dynamic networking models, facilitating rapid deployment of services and scalability as business needs evolve.

Moreover, the router boasts a modular design, allowing businesses to customize their configurations to fit specific needs. It supports various interface modules, providing a range of connectivity options, including Ethernet, Fiber, and MPLS. This flexibility ensures that organizations can expand their network capabilities without a complete hardware overhaul.

In summary, the Cisco Systems 7401 is a powerful, feature-rich router suitable for diverse applications within complex network environments. With its high capacity, support for advanced technologies, and security features, it remains a formidable option for organizations looking to enhance their network infrastructure and streamline their communications.