Cisco Nexus 1000V User Manual

9-7
Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
OL-31593-01
Chapter 9 Ports
Problems with Ports
VM Cannot Ping a Secured Port
Possible Cause Solution
The vEthernet interface is
not up.
1. Verify the state of the vEthernet interface.
show interface vethernet number
2. If the interface is down, enable it.
shut
no shut
Drop on Source Miss
(DSM) is set.
New MAC addresses
cannot be learned by this
port.
1. Verify the port security configuration.
module vem 3 execute vemcmd show portsec stats
2. If DSM is set, clear the DSM bit on the VSM.
no port-security stop learning
The packet VLAN is not
allowed on the port.
1. Identify the packet VLAN ID.
show svs domain
2. Verify that the packet VLAN is allowed on VEM uplink ports.
show port-profile na uplink-all
3. If the packet VLAN is not allowed on the uplink port profile, add it
to the allowed VLAN list.
The packet VLAN is not
allowed on the upstream
switch port.
1. Identify the upstream neighbors connected to the interface.
show cdp neighbors
2. Log in to the upstream switch and verify that the packet VLAN is
allowed on the port.
show running-config interface gigabitEthernet slot/port
3. If the packet VLAN is not allowed on the port, add it to the allowed
VLAN list.

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