Pvlans' Efficient Use Of Ip Addresses; Table 222: Pvlan Ports And Layer 2 Connectivity - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Complete Software Guide for Junos

Table 222: PVLAN Ports and Layer 2 Connectivity

Port Mode Promiscuous Port
Promiscuous Port Can communicate.
Community Port Can communicate.
Isolated Port Can communicate.
PVLAN Trunk Port Can communicate.

PVLANs' Efficient Use of IP Addresses

Related
Documentation
1510
®
OS for EX Series Ethernet Switches, Release 10.4
isolated port is unidirectional. An isolated port can forward packets to a PVLAN trunk
port, but a PVLAN trunk port cannot forward packets to an isolated port.
Table 222 on page 1510 summarizes the Layer 2 connectivity between the different types
of ports.
Community Port
Can communicate.
Can communicate within
the same community.
Cannot communicate.
Can communicate within
the same community.
NOTE: If you enable
(or the inter-switch isolated VLAN) in the PVLAN inherit that setting. However,
if you want to disable MAC address learning on any of the community VLANs,
you must configure
PVLANs provide IP address conservation and efficient allocation of IP addresses. In a
typical network, VLANs usually correspond to a single IP subnet. In private VLANs, the
hosts in all the secondary VLANs still belong to the same IP subnet as the subnet allocated
to the primary VLAN. Hosts within the secondary VLAN are numbered based on IP subnets
associated with the primary VLAN, and their IP subnet masking information reflects that
of the primary VLAN subnet.
Understanding Bridging and VLANs on EX Series Switches on page 1501
Example: Configuring a Private VLAN on a Single EX Series Switch on page 1571
Creating a Private VLAN on a Single EX Series Switch (CLI Procedure) on page 1607
Isolated Port
Can communicate.
Cannot
communicate.
Cannot
communicate.
Cannot
communicate.
no-mac-learning on a primary VLAN, all isolated VLANs
on each of those VLANs.
no-mac-learning
Copyright © 2010, Juniper Networks, Inc.
PVLAN Trunk Port
Can communicate.
Can communicate.
Can communicate.
NOTE: This
communication is
unidirectional.
Can communicate.