Chapter 8 Troubleshooting

Troubleshooting Tools

show telnet status

Telnet deamon is enabled.

show line vty timeout — Shows the timeout configured for Telnet sessions.

Following is a sample output from the show line vty timeout command.

Timeout is 30 minutes

Troubleshooting the link interface subsystem:

show interface GigabitEthernet 0/# — Displays information for a specific GBE Interface.

Following is a sample output from the show interface command.

ip address: 10.1.6.145

subnet mask: 255.255.0.0

Configured duplex: auto

AutoNegotiation is On, link is Up, actual duplex: half

show interface GigabitEthernet 0/# counters — Displays the values of counters of a GBE interface.

Following is a sample output from the show interface counters command.

In total octets: 191520

In good unicast packets: 560

In good multicast packets: 0

In good broadcast packets: 0

In packets discarded: 0

In packets with CRC/Alignment error: 0

In undersized packets: 0

In oversized packets: 0

Out total octets: 0

Out unicast packets: 0

Out non unicast packets: 0

Out packets discarded: 0

Refer to The User Log (on page 8-4)for an explanation of commands related to the user log.

The User Log

The user log is an ASCII file that can be viewed in any editor. It contains a record of system events, including startup, shutdown and errors. You can use the Logger to view the user log to determine whether or not the system is functioning properly, as well as for technical support purposes.

The Logging System

Events are logged to one of two log files. After a file reaches maximum capacity, the events logged in that file are then temporarily archived. New events are then automatically logged to the alternate log file. When the second log file reaches maximum capacity, the system then reverts to logging events to the first log file, thus overwriting the temporarily archived information stored in that file.

Basic operations include:

Copying the User Log to an external source

Viewing the User Log

Clearing the User Log

Cisco SCE 1000 2xGBE Installation and Configuration Guide

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Cisco Systems OL-7821-04, SCE 1000 2xGBE manual User Log, Logging System

SCE 1000 2xGBE, OL-7821-04 specifications

Cisco Systems OL-7821-04, SCE 1000 2xGBE is an advanced network service appliance designed to deliver superior performance and reliability for service providers seeking to optimize their networks. This compact yet powerful device is integral in addressing the growing demands of data traffic in telecommunications and data centers.

One of the standout features of the SCE 1000 is its ability to support both IPv4 and IPv6 networks, ensuring compatibility with current and future networking protocols. This dual-stack capability empowers service providers to seamlessly transition and integrate next-generation applications without jeopardizing service quality.

The SCE 1000 is equipped with two Gigabit Ethernet (GbE) ports that enhance its connectivity options and allow for increased bandwidth. This dual-port configuration supports high-speed data transfers and streamlined operations, making it ideal for enterprises with substantial networking demands. Its flexible interface options facilitate easy integration into existing network architectures without requiring extensive reconfiguration.

An essential characteristic of the SCE 1000 is its advanced service creation technology, which allows for dynamic traffic management. This feature intelligently prioritizes and optimizes applications, ensuring that critical services receive the bandwidth they need while maintaining overall network efficiency. Service providers can leverage this capability to implement Quality of Service (QoS) policies, delivering a consistent user experience even during peak usage times.

Furthermore, the SCE 1000 supports various traffic engineering methods, including deep packet inspection and application recognition, enabling operators to monitor and control network traffic effectively. This capability is particularly crucial in identifying and mitigating potential network threats, resulting in enhanced security measures.

With its robust architecture, the device also offers scalability, accommodating the growing network requirements of service providers. As businesses grow and data use expands, the SCE 1000 can adapt without compromising performance.

In summary, the Cisco Systems OL-7821-04, SCE 1000 2xGBE is a versatile network service appliance that combines high performance, advanced service creation technology, and strong security features. It stands out as an essential tool for service providers aiming to enhance their network capabilities and deliver superior services to customers. Its dual GbE ports, IPv4/IPv6 support, and dynamic traffic management make it a reliable choice for organizations anticipating significant data growth.