Nexus 9k Packet Capture Jun 2026

: It cannot capture hardware-switched data plane traffic unless that traffic is specifically punted to the CPU.

: Replicates traffic from a source interface (physical or VLAN) to a local "monitor interface" where a laptop or server is connected. nexus 9k packet capture

In ACI mode, the underlying Linux shell is locked down. You cannot just drop into bash and run tcpdump . Furthermore, traffic is encapsulated in VXLAN, making standard captures difficult to read. : It cannot capture hardware-switched data plane traffic