DELL 8132 ユーザーズマニュアル

VLAN Commands

In order to enable Private VLAN operation across multiple switches which are 

not stacked, the inter-switch links should carry VLANs which belong to a 

private VLAN. The trunk ports which connect neighbor switches have to be 

assigned to the primary, isolated, and community VLANs of a private VLAN.
In regular VLANs, ports in the same VLAN switch traffic at L2. However for 

private VLAN, the promiscuous port is in the primary VLAN whereas the 

isolated or community ports are in the secondary VLAN. Similarly, for 

broadcasts, in regular VLANs, ports in the same VLAN receive broadcast 

traffic. However, for private VLANs, the ports to which the broadcast traffic is 

forwarded depend on the type port on which the traffic was received. If the 

received port is a host port; the traffic is forwarded to all promiscuous and 

trunk ports. If the received port is community port the broadcast traffic is 

forwarded to promiscuous, trunk and community ports in the same VLAN. A 

promiscuous port sends traffic to other promiscuous ports, isolated and 

community ports. 

This chapter explains the following commands:

show dvlan-tunnel switchport general 

interface range vlan show port protocol switchport general 

mode dvlan-tunnel show vlan

2CSPC4.X8100-SWUM102.book  Page 786  Friday, March 15, 2013  8:56 AM