This chapter covers the following subjects:
Cisco IOS Diagnostic Tools: This section shows how a few readily accessible Cisco IOS Software commands can be used to quickly gather information as part of a structured troubleshooting process.
Specialized Diagnostic Tools: This section introduces a collection of specialized features, such as Switched Port Analyzer (SPAN), Remote SPAN (RSPAN), Simple Network Management Protocol (SNMP), NetFlow, and Embedded Event Manager (EEM), which can be used to collect information about a problem.
Key to maintaining and troubleshooting a network is the collection of information about that network. Fortunately, Cisco IOS offers many commands that can be used ...