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Configuring VLANs

You can configure the following port-based VLAN and VLAN interface functions through the Web

interface:

• Create or delete VLANs.

• Add/remove member ports to/from a VLAN.

• Create or delete VLAN interfaces.

• Configure VLAN interface parameters.

Overview

Ethernet is a network technology based on the CSMA/CD mechanism. As the medium is shared,

collisions and excessive broadcasts are common on Ethernet networks. To address the issue, virtual LAN

(VLAN) was introduced to break a LAN down into separate VLANs. VLANs are isolated from each other

at Layer 2. A VLAN is a bridging domain, and all broadcast traffic is contained within it.

For hosts of different VLANs to communicate, you must use a router or Layer 3 switch to perform Layer 3

forwarding. To achieve this, VLAN interfaces are used. VLAN interfaces are virtual interfaces used for

Layer 3 communication between different VLANs. They do not exist as physical entities on devices. For

each VLAN, you can create one VLAN interface. You can configure VLAN interfaces to forward traffic at

the network layer.

For more information about VLANs and VLAN interfaces, see HP MSR Router Series (V5) Layer 2—LAN

Switching Configuration Guide.

Configuring a VLAN and its VLAN interface

Recommended configuration procedures

Recommended VLAN configuration procedure

Ste

Remarks

1. Creating a VLAN and its VLAN interface.

Required.

2. Configuring VLAN member ports.

Required.

Recommended VLAN interface configuration procedure

Ste

Remarks

1. Creating a VLAN and its VLAN

interface.

Required.

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