Switch User Manual

Alteon OS Application Guide

Chapter 3: VLANs

 8542C4911, January 2007

Example 1: Multiple VLANs with Tagging Adapters

Figure 3-6 Example 1: Multiple VLANs with VLAN-Tagged Gigabit Adapters

The features of this VLAN are described below:

Component Description

GbE Switch

Module

This switch is configured for three VLANs that represent three differ-

ent IP subnets. Two servers and five clients are attached to the switch.

Server #1 This server is a member of VLAN 3 and has presence in only one IP

subnet. The associated internal switch port is only a member of VLAN

3, so tagging is disabled.

Server #2 This high-use server needs to be accessed from all VLANs and IP sub-

nets. The server has a VLAN-tagging adapter installed with VLAN tag-

ging turned on. The adapter is attached to one of the internal switch

ports, that is a member of VLANs 1, 2, and 3, and has tagging enabled.

Because of the VLAN tagging capabilities of both the adapter and the

switch, the server is able to communicate on all three IP subnets in this

network. Broadcast separation between all three VLANs and subnets,

however, is maintained.

BladeCenter

GbE

Switch Module

GbE

VLAN #3

VLAN #1, 2, 3