Chapter 3 Troubleshooting

Table 3-1 Common Problems and Their Solutions (continued)

Symptom

Possible Causes

Corrective Action

 

 

 

GigaStack GBIC

Link flap (the link keeps

Remove and reinsert the GigaStack GBIC.

LED blinks any

going up and down).

Upgrade all the switches in a series to the same

color for more than

 

 

software version; otherwise, the loop-breaking

1 minute.

 

 

algorithm might never resolve itself. For example,

 

 

 

 

if the stack includes only Catalyst 2900 series XL

 

 

and 3500 series XL switches, they must run

 

 

Release 12.0(5)XU or later. If the stack includes a

 

 

mixture of Catalyst 2900 series XL,

 

 

3500 series XL, 2950, and 3550 switches, all the

 

 

2900 XL and 3500 XL switches must run

 

 

Release 12.0(5)XW or later, all Catalyst 2950

 

 

switches must run Release 12.1(6)EA2 or later,

 

 

and all Catalyst 3550 switches must run

 

 

Release 12.1(4)EA1 or later.

 

 

If no loop exists in the GigaStack GBIC stack, you

 

 

can disable the loop-breaking algorithm by using

 

 

the no gigastack loop-breaking [interface-id]

 

 

global configuration command.

 

 

 

GigaStack GBIC

The GigaStack GBIC is in

Remove and reinsert the GigaStack GBIC.

LED color is

an indeterminate state.

 

incorrect (for

 

 

example, the GBIC

 

 

is not connected to

 

 

another device, but

 

 

the LED is green).

 

 

 

 

 

 

Catalyst GigaStack Gigabit Interface Converter Hardware Installation Guide

3-2

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Image 48
Cisco Systems WS-X3500-XL manual No gigastack loop-breaking interface-id

WS-X3500-XL specifications

Cisco Systems has long been a leader in networking technology, and one of its robust offerings is the WS-X3500-XL line card. This high-performance module is designed for the Catalyst 3500 series switches, providing enhanced functionality and flexibility for enterprise networking environments.

The WS-X3500-XL boasts several main features that make it a valuable addition to any network. Firstly, it supports a variety of Fast Ethernet options, which allows organizations to run 10/100 Mbps connections. Its versatility in port configurations ensures that businesses can tailor their networks according to specific requirements without needing to invest in multiple hardware components.

Another hallmark of the WS-X3500-XL is its support for Cisco's patented features, such as VLANs (Virtual Local Area Networks) and QoS (Quality of Service). VLANs enable the segmentation of a network into distinct broadcast domains, enhancing security and improving traffic management. This capability is particularly important in larger environments where different departments may require their own isolated network segments.

In terms of technology, the WS-X3500-XL is equipped with support for advanced routing protocols such as RIP, OSPF, and EIGRP, making it suitable for both Layer 2 and Layer 3 networking scenarios. This adaptability allows organizations to optimize their routing processes and make efficient use of bandwidth.

Performance-wise, the WS-X3500-XL includes features like fast switching and multicasting capabilities for improved network efficiency. With its built-in forwarding engine, this line card ensures rapid packet processing, which is crucial for maintaining high performance in busy network environments.

The WS-X3500-XL also emphasizes redundancy and failover capabilities, which are vital for maintaining network uptime. It supports features like Spanning Tree Protocol (STP) for loop prevention, ensuring that the network remains stable and functional even in the event of a device failure.

In conclusion, the Cisco WS-X3500-XL line card stands out in the realm of networking equipment thanks to its versatility, robust feature set, and advanced technologies. Whether used in small to medium-sized businesses or larger enterprise networks, it provides the flexibility and performance required to meet modern networking demands. Its compatibility with a range of Cisco's technologies ensures a future-proof solution for evolving networking needs.