Verifying and Troubleshooting the Installation

•Troubleshooting the Installation, page 64

Initial Boot Process

Note Many new line cards are designated as administratively down by default. Status LEDs are off until you configure the interfaces and use the no shutdown command.

During a typical line card boot process, the following events occur:

1.The line card maintenance bus (MBus) module receives power and begins executing the MBus software.

2.The line card MBus module determines the type of card on which it resides, performs internal checks, and prepares to accept the Cisco IOS software from the RP.

3.The RP powers up the line card and loads the line card with its Cisco IOS software.

To verify that the line card is working properly, perform the following operational checks:

•During the line card boot process, observe the line card alphanumeric LEDs to ensure that the card is running the typical initialization sequence. The sequence should end with IOS RUN.

•Observe the line card status LEDs to verify that the Active LED (Link LED or status LED for line cards with no Active LED) is on. If an Active LED is not on, verify that the associated interface is not shut down.

Status LEDs

The Gigabit Ethernet line cards and the 8-Port Fast Ethernet line card have different status LEDs.

Gigabit Ethernet Status LEDs

After installing the line card and connecting the interface cables, verify that the line card is working properly by observing the LEDs on the faceplate. For the locations of the LEDs, refer to the figures in the “Product Overviews” section on page 4.

Status LEDs show the status of each fiber-optic connector:

•LINK—When lit, indicates that the Gigabit Ethernet (GE) MAC layer is receiving comma characters from a connected GE device.

•ACTIVE—When lit, indicates that the interface is active.

•RX FRAME—When lit, indicates that the interface has received a packet.

Alphanumeric LEDs explain the state of the line card and are made up of two, four-digit alphanumeric LED displays. (See the “Alphanumeric LEDs” section on page 60.)

The status LEDs might not go on until after you have configured the line card interfaces (or turned them on, if they were shut down).

The different operating states of the status LEDs on the Gigabit Ethernet line card are shown in Table 17.

Cisco XR 12000 Series Router Ethernet Line Card Installation

 

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Cisco Systems XR 12000 Series specifications Initial Boot Process, Gigabit Ethernet Status LEDs
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XR 12000 Series specifications

The Cisco Systems XR 12000 Series routers are designed to meet the demands of modern networking environments, ensuring high performance, scalability, and reliability for service providers and large enterprises. This series is engineered to deliver advanced features that facilitate a range of applications, including core routing, edge services, and data center interconnect.

One of the main features of the XR 12000 Series is its advanced routing capabilities. These routers utilize the Cisco IOS XR software architecture, which provides a modular and distributed operating system. This architecture enhances system reliability as individual processes can be restarted independently without affecting overall system operations. As a result, service providers can achieve higher uptime and enhanced service continuity.

The XR 12000 Series supports a robust set of technologies that enable efficient data handling and transport. Notably, the series includes support for Multiprotocol Label Switching (MPLS), which enhances traffic engineering, distributed bandwidth management, and Quality of Service (QoS) capabilities. This makes the XR 12000 a preferred choice for operators looking to optimize their network performance under increasing traffic loads.

Furthermore, the XR 12000 Series excels in scalability. With a flexible modular design, operators can customize their systems to fit specific needs by adding additional line cards or service modules. These enhancements enable operators to scale both up and down based on fluctuating demands, accommodating numerous high-bandwidth applications such as video streaming, cloud services, and IoT.

Security is another critical characteristic of the XR 12000 routers. Built-in cybersecurity features, including secure boot, strong encryption, and integrity checks, protect against unauthorized access and ensure data integrity. Coupled with advanced monitoring and logging capabilities, these routers can help operators maintain robust security postures.

Additionally, the XR 12000 Series is designed to facilitate seamless integration with existing network infrastructures. The routers support various protocols and interfaces, which ensure interoperability with legacy systems and enhance overall network efficiency. This flexibility allows service providers to future-proof their investments while adapting to evolving technological landscapes.

In summary, the Cisco XR 12000 Series routers stand out for their advanced routing capabilities, scalability, robust security features, and compatibility with modern and legacy network infrastructures. These attributes make them an ideal choice for organizations seeking to enhance their networking capabilities in a rapidly changing digital environment.
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