Private Vlan Ports; Troubleshooting Guidelines; Private Vlan Troubleshooting Commands - Cisco Nexus 1000V Troubleshooting Manual

Troubleshooting Guidelines

Private VLAN Ports

Within a private VLAN domain, there are three separate port designations. Each port designation has its
own unique set of rules that regulate the ability of one endpoint to communicate with other connected
endpoints within the same private VLAN domain. The following are the three port designations:
•
•
•
For additional information about private VLANs, see the Cisco Nexus 1000V Layer 2 Switching
Configuration Guide.
Troubleshooting Guidelines
Follow these guidelines when troubleshooting private VLAN issues:
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•
•

Private VLAN Troubleshooting Commands

Use the commands listed in this section to troubleshoot problems related to private VLANs.
Command
show vlan private-vlan
show interface name
show interface veth-name
module vem module-number execute vemcmd
show port
Example 14-1 show vlan private-vlan Command
switch# show vlan private-vlan
Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
14-2
Promiscuous
Isolated
Community
Use the show vlan private-vlan command to verify that a private VLAN is configured correctly.
Use the show interface slot-port command to verify the interface is up.
Use the module vem module-number execute vemcmd show port command to verify the VEM is
configured correctly.
Primary Secondary Type
------- --------- ---------------
152 157 community
Purpose
Displays that a private VLAN is configured
correctly.
See Example 14-1 on page
Displays that a physical Ethernet interface in a
private VLAN trunk promiscuous mode is up.
See Example 14-2 on page
Displays that a virtual Ethernet interface in
private VLAN host mode is up.
See Example 14-3 on page
Displays that a VEM is configured correctly.
See Example 14-4 on page
Ports
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Chapter 14 Private VLANs
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14-3.
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