Cisco Nexus 1000V User Manual

9-3
Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
OL-31593-01
Chapter 9 Ports
Port Diagnostic Checklist
Port Diagnostic Checklist
Use the following checklist to diagnose port interface activity.
For more information about port states, see the Cisco Nexus 1000V Interface Configuration Guide.
Problems with Ports
This section includes possible causes and solutions for the following symptoms:
• Cannot Enable an Interface, page 9-4
• Port Link Failure or Port Not Connected, page 9-4
• Link Flapping, page 9-5
• Port ErrDisabled, page 9-6
• VM Cannot Ping a Secured Port, page 9-7
• Port Security Violations, page 9-8
• Port State is Blocked on a VEM, page 9-9
Table 9-1 Port Diagnostic Checklist
Checklist Example
Verify that the module is active.
show module
See Example 9-1 on page 9-11.
Verify that the VSM is connected to vCenter Server.
show svs connections
See Example 9-3 on page 9-12.
On vSphere Client connected to vCenter Server, verify that
the required port profiles are assigned to the physical NICs
and the virtual NICs.
Verify that the ports have been created.
show interface brief
See Example 9-8 on page 9-13.
Verify the state of the interface.
show interface ethernet
See Example 9-10 on
page 9-13.

Cisco Nexus 1000V Specifications

General

Type	Virtual Switch
Manageable	Yes
NetFlow	Yes
SPAN	Yes
ERSPAN	Yes
Operating System	Cisco NX-OS
Form Factor	Virtual
Hypervisor Support	VMware ESXi
Features	VXLAN
Security Features	Port Security, Private VLANs, ACLs