Switching Commands
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M4100 Series ProSAFE Managed Switches
Three types of port designations exist within a private VLAN:
• Promiscuous Ports—An endpoint connected to a promiscuous port is allowed to
communicate with any endpoint within the private VLAN. Multiple promiscuous ports can
be defined for a single private VLAN domain.
• Isolated Ports—An endpoint connected to an isolated port is allowed to communicate
with endpoints connected to promiscuous ports only. Endpoints connected to adjacent
isolated ports cannot communicate with each other.
• Community Ports—An endpoint connected to a community port is allowed to
communicate with the endpoints within a community and with any configured
promiscuous port. The endpoints that belong to one community cannot communicate with
endpoints that belong to a different community or with endpoints connected to isolated
ports.
The Private VLANs can be extended across multiple switches through inter-switch/stack links
that transport primary, community, and isolated VLANs between devices.
switchport private-vlan
This command is used to define a private-VLAN association for an isolated or community
port or a mapping for a promiscuous port.
no switchport private-vlan
This command is used to remove the private-VLAN association or mapping from the port.
Format switchport private-vlan {host-association <primary-vlan-id>
<secondary-vlan-id> | mapping <primary-vlan-id> {add | remove}
<secondary-vlan-list>}
Mode Interface Config
Parameter Definition
host-association Defines VLAN association for community or host ports.
<primary-vlan-id> Primary VLAN ID of a private VLAN.
secondary-vlan-id Secondary (isolated or community) VLAN ID of a private VLAN.
mapping Defines the private VLAN mapping for promiscuous ports.
add Associates the secondary VLAN with the primary one.
remove Deletes the secondary VLANs from the primary VLAN association.
<secondary-vlan-list> A list of secondary VLANs to be mapped to a primary VLAN.
Format no switchport private-vlan {host-association | mapping}
Mode Interface Config
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