Chapter 6 Troubleshooting the Cisco IOS XR Software

Interfaces Not Coming Up

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

Clearing Configuration Sessions

Active configuration sessions and their associated target configurations can consume system memory. Users with the appropriate access privileges can display the open configuration sessions of other users and terminate those sessions, if necessary (see Table 6-2).

Table 6-2

Session Commands

 

 

 

 

Command

 

Description

 

 

show configuration sessions

Displays the active configuration sessions.

 

 

clear configuration sessions session-id

Clears a configuration session.

 

 

 

In the following example, the open configuration sessions are displayed with the show configuration sessions command. The clear configuration sessions command is then used to clear a configuration session.

RP/0/RSP0/CPU0:router# show

configuration sessions

 

 

Session

Line

User

Date

 

Lock

00000211-002c409b-00000000

con0_RSP1_CPU0

UNKNOWN

Mon Feb

2 01:02:09 2004

RP/0/RSP0/CPU0:router# clear configuration sessions 00000211-002c409b-00000000

session ID '00000211-002cb09b-00000000' terminated

Contacting TAC for Additional Assistance

If you remove configurations and the low-memory condition remains, you may need to contact TAC for additional assistance. See the “Additional Sources for Information” section on page 6-1.

Interfaces Not Coming Up

The router interfaces are directly used in processing network traffic, so their status information is crucial to understanding how the device is functioning. This section contains information on the EXEC mode commands used to verify that the router interfaces are operational. The basic commands used in this process are summarized in Table 6-3.

Table 6-3 show interface Commands

Command

Description

 

 

show interfaces

Displays detailed information about all interfaces installed or

 

configured on the device, whether or not they are operational.

 

 

show interfaces type instance

Specifies a particular interface, rather than displaying information for

 

all interfaces, as in the following example:

 

show interface gi0/1/0/0

 

 

show ipv4 interface

Displays basic, IP-related information for all available interfaces.

 

 

show ipv4 interface brief

Quickly displays the most critical information about the interfaces,

 

including the interface status (up or down) and the protocol status.

 

 

 

 

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

 

 

 

 

 

 

OL-17502-01

 

 

6-11

 

 

 

 

 

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Cisco Systems A9K24X10GETR, ASR 9000, A9KMOD80TR manual Interfaces Not Coming Up, Contacting TAC for Additional Assistance
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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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