How to perform packet capture using span session and ethanalyzer on nexus 9300 EX platform

Summary: This article explains how to perform packet capture using span session and ethanalyzer on nexus 9300 EX platform.

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Instructions

Goals        

Perform live packet capture during troubleshooting on Nexus 9300 EX switch 

Facts        

Nexus 93180-EX
SPAN
Ethanalyzer

Solution        

Configure the SPAN session.
Sample configuration - 
!
monitor session 1
source interface port-channel 101 tx
destination interface sup-eth0
no shut
!
NOTE: You can configure the CPU as the SPAN destination for Cisco Nexus 9300-EX Series switches, beginning with Cisco NX-OS Release 7.0(3)I4(2). To do so, enter sup-eth 0 for the interface type.
 
Perform packet capture using ethanalyzer with inband as "mirror" and proper filter i.e. ICMP,ARP etc.
Sample
  
ethanalyzer local interface inband mirror display-filter "arp" limit-captured-frames 0

 
NOTE:  Remove the SPAN configuration from switch after troubleshooting.

Affected Products

Storage
Article Properties
Article Number: 000206360
Article Type: How To
Last Modified: 03 Jan 2023
Version:  2
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