Reference Guide

Stacking | 553

Cabling Procedure

The following cabling procedure uses the stacking topology in Figure 31-1. Follow the same steps to cable

switches in any of the stacking topologies shown in Supported Stacking Topologies. To connect the

cabling, follow these steps:

1. Connect a 40GbE port on the first switch to a 40GbE port on the second switch.

2. Connect another 40GbE port on the second switch to a 40GbE port on the third switch.

3. Connect another 40GbE port on the third switch to a 40GbE port on the fourth switch.

4. Connect another 40GbE port on the fourth switch to a 40GbE port on the first switch.

The resulting ring topology allows the entire stack to function as a single switch with resilient fail-over

capabilities. If you do not connect the last switch to the first switch (Step 4), the stack operates in a daisy

chain topology with less resiliency. Any failure in a non-edge stack unit causes a split stack.

Accessing the CLI

To configure a stack, you must access the stack master in one of the following ways:

• For remote out-of-band management (OOB), enter the OOB management interface IP address into a

Telnet or secure shell (SSH) client and log in to the switch using the user ID and password to access

the CLI.

• For local management, use the attached console connection to the master switch to log in to the CLI.

Console access to the stack CLI is available on the master only.

• For remote in-band management from a network management station, enter the virtual local area

network (VLAN) IP address of the management port and log in to the switch to access the CLI.

Configuring and Bringing Up a Stack

After you attach the 40G QSFP or direct attach cables in a stack of MXL 10/40GbE Switches, to bring up

the stack, follow these steps.

Note: The procedure uses command examples for the stacking topology in Figure 31-1.

Step Task Command Syntax Command Mode

1 Set up a connection to the CLI on an MXL 10/40GbE Switch as described in Accessing the CLI.

2 Log on to the CLI and enter Global Configuration mode.

Password: *****

FTOS> enable

FTOS# configure

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