monitor session 1 source interface Ethernet1/1 both monitor session 1 destination interface Ethernet1/48 monitor session 1
1. Overview The Cisco Nexus 9000 series switches run either NX-OS (standalone mode) or ACI mode. Packet capture capabilities differ significantly between these two operating modes. This report focuses primarily on NX-OS standalone mode , which provides flexible, built-in packet capture tools similar to other enterprise switches but with Nexus-specific nuances. 2. Key Packet Capture Methods on NX-OS 2.1 Ethanalyzer (Recommended) ethanalyzer is a built-in tool based on Wireshark/TShark. It captures control-plane traffic and, with limitations, data-plane traffic. packet capture on nexus 9k
monitor session 2 type erspan-source source interface Ethernet1/1 both erspan-id 100 ip destination 192.168.1.100 ip source 192.168.1.1 origin ip address 192.168.1.1 ERSPAN requires an ACL or explicit destination configuration; hardware resources are limited. 2.3 Embedded Logic Analyzer Module (ELAM) ELAM captures a single packet at wire speed on a specific ASIC pipeline. Useful for debugging forwarding issues. monitor session 1 source interface Ethernet1/1 both monitor