Dell Force10 S4810P Configuration Manual page 796

• Ports in a community VLAN can communicate with each other.
• Ports in a community VLAN can communicate with all promiscuous ports in the primary VLAN.
• A community VLAN can only contain ports configured as
Isolated VLAN — An
• Ports in an isolated VLAN cannot talk directly to each other.
• Ports in an isolated VLAN can only communicate with promiscuous ports in the primary VLAN.
• An isolated VLAN can only contain ports configured as
Primary VLAN—A
• A switch can have one or more primary VLANs, and it can have none.
• A primary VLAN has one or more secondary VLANs.
• A primary VLAN and each of its secondary VLANs decrement the available number of VLAN IDs in
the switch.
• A primary VLAN has one or more promiscuous ports.
• A primary VLAN might have one or more trunk ports, or none.
Secondary VLAN — A
secondary VLAN — community VLAN and isolated VLAN.
PVLAN port types:
• Community port: A
allowed to communicate with other ports in the same community VLAN and with promiscuous ports.
• Host port: A
• The port must first be assigned that role in INTERFACE mode.
• A port assigned the host role cannot be added to a regular VLAN.
• Isolated port: An
promiscuous ports that are in the same PVLAN.
• Promiscuous port: A
other port type in the PVLAN:
• A promiscuous port can be part of more than one primary VLAN.
• A promiscuous port cannot be added to a regular VLAN.
• Trunk port: A
• A trunk port in a PVLAN is always tagged.
• Primary or secondary VLAN traffic is carried by the trunk port in tagged mode. The tag on the
packet helps identify the VLAN to which the packet belongs.
• A trunk port can also belong to a regular VLAN (non-private VLAN).
Each of the port types can be any type of physical Ethernet port, including port channels (LAGs). For
details on port channels, see
For an introduction to VLANs, see
796
| Private VLANs (PVLAN)
is a type of secondary VLAN in a primary VLAN:
isolated VLAN
is the base VLAN of a private VLAN:
primary VLAN
is a subdomain of the primary VLAN. There are two types of
secondary VLAN
is, by definition, a port that belongs to a community VLAN and is
community port
, in the context of a private VLAN, is a port in a secondary VLAN:
host port
is, by definition, a port that, in Layer 2, can only communicate with
isolated port
promiscuous port
, by definition, carries traffic between switches:
trunk port
Port Channel Interfaces on page 482
Chapter 29, Layer
.
host
.
host
is, by definition, a port that is allowed to communicate with any
in
2.
Chapter 23, Interfaces.