Dell PowerConnect B-FCXs Configuration Manual page 521

Powerconnect b-series fcx

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192.168.1.69/24

Ports 1/1 - 1/5

192.168.1.129/24

In this example, a collocation service provides private channels for multiple clients. Although the

same devices are used for all the clients, the VLANs ensure that each client receives its own Layer

2 broadcast domain, separate from the broadcast domains of other clients. For example, client 1

cannot ping client 5.

The clients at each end of a channel appear to each other to be directly connected and thus can be

on the same subnet and use network services that require connection to the same subnet. In this

example, client 1 is in subnet 192.168.1.0/24 and so is the device at the other end of client 1

Because each VLAN configured on the core devices is an aggregate of multiple client VLANs, the

aggregated VLANs greatly increase the number of clients a core device can accommodate.

This example shows a single link between the core devices. However, you can use a trunk group to

add link-level redundancy.

PowerConnect B-Series FCX Configuration Guide

53-1002266-01

Example of a super aggregated VLAN application

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VLAN Aggregation

VLAN Aggregation

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Ports 1/1 - 1/5

Configuring super aggregated VLANs

209.157.2.12/24

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Ports 1/1 - 1/5

Ports 1/1 - 1/5

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Troubleshooting