Home
Skip to content
Skip to footer
Worldwide [change]
Log In
Account
Register
My Cisco
Cisco.com Worldwide Home
Products & Services
(menu)
Support
(menu)
How to Buy
(menu)
Training & Events
(menu)
Partners
(menu)
Guest
Search
Support
Technology Support
LAN Switching
Ethernet
Troubleshooting TechNotes
View Documents by Topic
Choose a Topic
Gigabit Ethernet (802.3z)
Gigabit Ethernet (802.3z)
System Requirements to Implement Gigabit Ethernet on Catalyst Switches
20/Dec/2005
Best Practices for Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Running CatOS Configuration and Management
29/Nov/2007
Resilient Ethernet Protocol Overview
22/Jul/2016
Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues
27/Oct/2009
Troubleshooting Switch Port and Interface Problems
03/Apr/2009
Configuring and Troubleshooting Ethernet 10/100/1000Mb Half/Full Duplex Auto-Negotiation
28/Oct/2009
Errdisable Port State Recovery on the Cisco IOS Platforms
23/Mar/2016
Overview of Keepalive Mechanisms on Cisco IOS
17/Dec/2014
Recovering From errDisable Port State on the CatOS Platforms
20/Jun/2007
Signal Quality Errors (SQE)
15/Nov/2005
Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues
27/Oct/2009
Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues
(PDF - 184 KB)
05/Jan/2017
Troubleshooting Switch Port and Interface Problems
03/Apr/2009
Support Documentation
All Support Documentation for this Series
Troubleshoot and Alerts
Troubleshooting Guides
Information For
Small Business
Midsize Business
Service Provider
Industries
Marketplace
Contacts
Contact Cisco
Meet our Partners
Find a Reseller
News & Alerts
Newsroom
Blogs
Field Notices
Security Advisories
Technology Trends
Cloud
Internet of Things (IoT)
Software Defined Networking (SDN)
Support
Downloads
Documentation
Communities
DevNet
Learning Network
Support Community
Video Portal
About Cisco
Investor Relations
Corporate Social Responsibility
Environmental Sustainability
Trust and Transparency Center
There's Never Been A Better Time
Careers
Search Jobs
We Are Cisco
Programs
Cisco Designated VIP Program
Cisco Powered
Financing Options