Dell DF10MXL Руководство по началу работы - Страница 26

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Use only QSFP transceivers and QSFP cables (separately purchased) to

connect stacking ports as follows:

1 Insert a QSFP cable in the bottom stacking port on the rightmost switch.

2 Connect the upper stacking port on the next switch to the left.

3 Continue connecting each switch to the next in this way until you reach

the leftmost switch in the stack.

4 On the leftmost switch, connect the bottom stacking port to the upper

stacking port on the rightmost switch to create a loop.

NOTE:

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 leftmost switch to the rightmost 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.

Configuring and Bringing Up a Stack

NOTE:

Although stacking is supported on 40GbE ports on the base module or a

2-Port 40GbE QSFP+ module, this section shows how to configure stacking only on

the base-module ports (Figure 1-10).

To convert the 40GbE ports on the 2-Port QSFP+ module from their default 4x10GbE

mode to 40GbE mode to configure a stack, refer to FlexIOTM Plug-in Modules. After

the converting the ports to 40GbE, you do not have to reload the switch because a

switch reload is required as part of the stack configuration procedure.

After you attach the QSFP+ cables in a stack of MXL 10/40GbE Switches, to

configure and bring up the stack, follow these steps:

1 Connect the terminal to the console port on an MXL 10/40GbE Switch.

Enter the following commands to access the CLI and configure the two

40GbE ports on the base module for stacking mode:

Password: *****

Dell> enable

Dell# configure

Dell(conf)# stack-unit 0 stack-group 0

Dell(conf)# stack-unit 0 stack-group 1

Where

stack-unit 0

configuration of a switch;

Assembling a Switch Stack

defines the default stack-unit number in the initial

stack-group 0

defines the stack group for the