Dell PowerEdge M IO Aggregator Quick Start Guide download pdf (Page 23)

Assembling a VLT

After you complete the initial configuration, the aggregator is powered up and operational.

VLT is limited to two aggregators of the same SKU in the same chassis. In the aggregator, VLT is

supported only using a single inter chassis link (ICL) link between the two aggregators.

Cabling the VLT

The following figure shows a VLT example using two aggregators in a chassis. The aggregators are

connected to operate in VLT using only uplink port 9 which is a static ICL, when operating in 10G speed.

Prerequisite: Before you attach the VLT cables, you must power up both aggregators with the default or

reconfigured settings as described in Reconfiguring Default Settings.

Figure 7. Switch VLT Using 10GbE Ports on Two Aggregators

Configuring and Bringing Up a VLT

1. Connect the terminal to the console port on an aggregator. To access the CLI and configure the

device in VLT mode, enter the following commands:

Password: *****

Dell> enable

Dell# configure

Dell(conf)# stack-unit 0 iom-mode vlt

% You are about to configure Auto VLT to your IOA module, in 10G Uplink

Mode please reload the IOA and then plug in the ICL cable for the changes

to take effect.

Where stack-unit 0 defines the default stack-unit number in the initial configuration of a switch.

2. Repeat on the other aggregator in the VLT by entering the stack-unit 0 iom-mode vlt

command and saving the configuration.

3. Reboot each aggregator by entering the reload command in EXEC Privilege mode:

Dell# reload

System configuration has been modified. Save? [yes/no]: n Proceed with

reload [confirm yes/no]: y

After you attach the cables in a VLT of an aggregator, follow these steps to configure and bring up

the VLT.

To connect the VLT ports, use only the appropriate cable type based on the type of SKU; for

example:

a. Insert an SFP+ Multimode fiber/10g direct attach cable (DAC) into port 9 on the top aggregator.

Assembling a VLT

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Dell PowerEdge M IO Aggregator Quick Start Guide Page 23