Private vlan, Remote switched port analyzer, Configuration requirements for vlan manager – Brocade Network Advisor SAN + IP User Manual v12.1.0 User Manual

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Brocade Network Advisor SAN + IP User Manual

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VLAN Manager

36

Private VLAN

NOTE

PVLAN read-only support is provided.

Private VLAN (PVLAN) provides device isolation through the application of Layer 2 forwarding
constraints. PVLAN allows end devices to share the same IP subnet while being Layer 2 isolated.
This enables network designers to employ larger subnets and thereby reduce the address
management overhead.

There are three types of PVLAN:

Primary VLAN — A primary VLAN is a unique and common VLAN identifier within the PVLAN
domain and its VLAN ID pairs.

Isolated VLAN — An isolated VLAN is a secondary VLAN that isolates all hosts connected to its
ports at Layer 2.

Community VLAN — A community VLAN is a secondary VLAN that is associated with a group of
ports that connect to a certain community of end devices based on mutual trust relationships.

A PVLAN domain is built with at least one pair of VLAN IDs: One primary VLAN ID (Vp) plus one or
more secondary VLAN IDs (Vs).

Remote Switched Port Analyzer

Remote Switched Port Analyzer (RSPAN) VLAN is used to monitor source ports, VLANs and
destination ports on different switches in your network. You can configure any VLAN as an RSPAN
VLAN that meets the following conditions:

The same RSPAN VLAN is used for an RSPAN session in all the switches.

All participating switches support RSPAN.

Configuration requirements for VLAN Manager

Before you can manage VLANs with VLAN Manager, you must complete the following tasks:

Make sure that the discovery process has been run. Discovery captures configuration
information from IronWare OS products and places that information in the Management
application database. Refer to

Chapter 4, “Discovery”

for details on running discovery.

Make sure the VLAN Manager privilege is in your Management application user role or account
if you need to use VLAN Manager.

If you want to view VLAN connectivity in the Layer 2 topology, make sure Foundry Discovery
Protocol (FDP) or Link Layer Discovery Protocol (LLDP) is enabled on the devices on the
network.

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