Chapter 3 Troubleshooting

Diagnosing Problems

Table 3-2 Common Problems and Their Solutions

Symptom

Possible Cause

Resolution

 

 

 

Poor Performance or

Duplex autonegotiation mismatch.

Refer to the Catalyst 2900 Series

Excessive Errors.

 

XL and Catalyst 3500 Series XL

 

 

 

 

Software Configuration Guide for

 

 

 

 

information on identifying

 

 

 

 

autonegotiation mismatches.

 

 

 

 

 

 

 

 

 

Cabling distance exceeded.

 

 

 

 

 

Port statistics show excessive frame

Refer to the Catalyst 2900

 

 

 

check sequence (FCS), late-collision,

Series XL and Catalyst 3500

 

 

 

or alignment errors.

Series XL Software

 

 

 

 

Configuration Guide for

 

 

 

 

information on displaying

 

 

 

For 100BASE-TX connections:

port statistics.

 

 

 

 

 

 

 

 

The distance between the port

Reduce the cable length to

 

 

 

and the attached device exceeds

within the recommended

 

 

 

328 feet (100 meters).

distances.

 

 

 

If the switch is attached to a

Refer to your 100BASE-T

 

 

 

repeater, the total distance

repeater documentation for

 

 

 

between the two end stations

cabling guidelines.

 

 

 

exceeds the 100BASE-T cabling

 

 

 

 

 

guidelines.

 

 

 

 

 

For 10BASE-T connections: The

Reduce the cable length to

 

 

 

distance between the port and the

within the recommended

 

 

 

attached device exceeds 328 feet

distances.

 

 

 

(100 meters).

 

 

 

 

 

 

 

 

 

 

 

Bad adapter in attached device.

 

 

 

 

 

Excessive errors found in port

Run adapter card diagnostic

 

 

 

statistics.

utility.

 

 

 

STP checking for possible loops.

Wait 30 seconds for LED to

 

 

 

 

turn green.

 

 

 

 

 

 

 

 

Catalyst 2900 Series XL Hardware Installation Guide

 

 

 

 

 

 

3-4

 

 

 

78-6461-03

 

 

 

 

 

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Cisco Systems 2900 Series XL manual Symptom Possible Cause Resolution, Cabling distance exceeded

2900 Series XL specifications

Cisco Systems 2900 Series XL routers are integral components of the Cisco Integrated Services Router (ISR) portfolio, designed to support various networking needs for small to medium-sized enterprises. These routers provide an extensive set of features tailored for voice, video, data, and wireless services, making them a versatile choice for organizations looking to streamline their network infrastructure.

One of the standout features of the 2900 Series XL is its modularity. This router is equipped with multiple interface card slots that allow users to customize and scale their network based on current and future requirements. The modular design offers flexibility in integrating various WAN interfaces such as T1/E1, DSL, and Ethernet, enabling businesses to adapt to changing connectivity needs without requiring a complete hardware overhaul.

The 2900 Series XL also supports a wide range of advanced security features. With integrated security protocols, such as firewall capabilities, Intrusion Prevention Systems (IPS), and Virtual Private Network (VPN) support, these routers ensure that sensitive company data remains protected against potential threats. Furthermore, the routers come with Cisco’s Adaptive Security Algorithm, which helps to detect and mitigate real-time attacks.

Another significant characteristic of the Cisco 2900 Series XL is its support for unified communications. The routers have built-in voice capabilities, allowing them to function as a voice gateway. This facilitates features like VoIP (Voice over IP), video conferencing, and even multimedia communication. These tools enhance collaboration and connectivity among team members, contributing to a more productive work environment.

The 2900 Series XL routers also include Cisco's IOS Software, which provides a robust operating system with a rich set of features for routing, switching, and security functions. The software is continually updated to ensure the routers remain compatible with the latest technology and security standards, thereby extending their functionality and lifespan.

In terms of performance, the 2900 Series XL routers are designed for high throughput and low latency, making them suitable for bandwidth-intensive applications. Their architecture supports services such as advanced Quality of Service (QoS) and traffic shaping, ensuring that mission-critical applications receive the bandwidth priority they require.

Ultimately, Cisco's 2900 Series XL routers represent a reliable, flexible solution for organizations looking to enhance their networking capabilities. With their exceptional features, comprehensive security options, and support for diverse applications and services, they play a crucial role in the modern digital landscape.