Cisco Nexus 9000 Series - Using Embedded Event Manager; Using Ethanalyzer

Using Embedded Event Manager
Embedded Event Manager (EEM) is a policy-based framework that allows you to monitor key system events
and then act on those events through a set policy. The policy is a preprogrammed script that you can load that
defines actions that the device should invoke based on set events occurring. The script can generate actions,
including, but not limited to, generating custom syslog or SNMP traps, invoking CLI commands, forcing a
failover, and much more.
For more information about configuring EEM, see the Cisco Nexus 9000 Series NX-OS System Management
Configuration Guide.
Using Ethanalyzer
Ethanalyzer is a Cisco NX-OS protocol analyzer tool based on the Wireshark (formerly Ethereal) open source
code. Ethanalyzer is a command-line version of Wireshark that captures and decodes packets. You can use
Ethanalyzer to troubleshoot your network and analyze the control-plane traffic.
To configure Ethanalyzer, use the following commands:
PurposeCommand
Captures packets sent or received by the supervisor
and provides detailed protocol information.
ethanalyzer local interface
Captures packets sent or received by the supervisor
and provides detailed protocol information in the
inband and outband interfaces.
ethanalyzer local interface inband
Captures packets sent or received by the supervisor
and provides detailed protocol information in the
management interfaces.
ethanalyzer local interface mgmt
Captures packets sent or received by the supervisor
and provides a summary of protocol information.
ethanalyzer local interface {inband | mgmt}
Limits the number of frames to capture.ethanalyzer local interface {inband | mgmt}
limit-captured-frames
Limits the length of the frame to capture.ethanalyzer local interface {inband | mgmt}
limit-frame-size
Filters the types of packets to capture.ethanalyzer local interface {inband | mgmt}
capture-filter
Filters the types of captured packets to display.ethanalyzer local interface {inband | mgmt}
display-filter
Saves the captured data to a file.ethanalyzer local interface {inband | mgmt} write
Opens the captured data file and analyzes it.ethanalyzer local read
Ethanalyzer does not capture data traffic that Cisco NX-OS forwards in the hardware.
Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 7.x
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Troubleshooting Tools and Methodology
Using Embedded Event Manager