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Configuration Guide - Device Management

S1720, S2700, S5700, and S6720 V200R011C10

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.
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Assigning a Stack ID

Assigning a Stack ID

The stack ID of a device defaults to 0. In a stack, the master switch manages stack IDs of member switches. If a new member switch joins the stack and its stack ID conflicts with that of another member, the master switch searches for the lowest idle stack ID. The master switch then assigns this stack ID to the new member switch. If stack IDs are not manually configured before stack setup, stack member switches are assigned random stack IDs. The stack IDs are assigned based on the member switches' startup sequence or other factors when a new stack is set up or member switches in a stack change. Therefore, you are advised to configure stack IDs for member switches before setting up a stack. Alternatively, you can perform certain operations to ensure that member switches use planned stack IDs after they start.

Table 9-2 describes scenarios where you need to assign stack IDs and recommended operation sequence.

Table 9-2  Stack ID assignment scenarios

Scenario

Condition

Procedure

Independent Stack

Stack as an SVF System

A stack is newly set up.

Initial stack IDs of all member switches are 0.

Configure stack IDs for member switches one by one before setting up a stack.
  1. Place member devices.
  2. Set the stack IDs of member switches one by one to the expected values.
  3. Connect member switches using stack cables to set up a stack.

Applicable and recommended

Applicable and recommended

Set up a stack and then change the stack IDs of member switches.
  1. Place member devices.
  2. Connect member switches using stack cables to set up a stack.
  3. Log in to the stack to change the stack IDs of member switches to the expected values and then restart the member switches.

Applicable and recommended

Inapplicable

Power on member switches in a certain sequence to make them use the expected stack IDs.
  1. Place member devices.
  2. Connect member switches using stack cables.
  3. Power on member switches one by one.

Applicable and recommended

Applicable and recommended

Initial stack IDs of some member switches are not 0.

Configure stack IDs for member switches one by one before setting up a stack.
  1. Place member devices.
  2. Set the stack IDs of member switches one by one to the expected values.
  3. Connect member switches using stack cables to set up a stack.

Applicable and recommended

Applicable and recommended

Set up a stack and then change the stack IDs of member switches.
  1. Place member devices.
  2. Connect member switches using stack cables to set up a stack.
  3. Log in to the stack to change the stack IDs of member switches to the expected values and then restart the member switches.

Applicable and recommended

Inapplicable

The stack capacity needs to be expanded.

Stack IDs of new member switches are 0.

Connect new member switches using cables and then power on these switches.
  1. Place member devices.
  2. Connect the new member switches to the stack using cables.
  3. Power on the new member switches one by one.

Applicable and recommended

Applicable and recommended

Add the new member switches to the stack and then change the stack IDs of the switches.
  1. Place member devices.
  2. Connect new member switches to the stack using stack cables, and power on the new member switches, which then join the stack and obtain auto-negotiated stack IDs.
  3. Log in to the stack to change the stack IDs of the new member switches to the expected values and then restart these switches.

Applicable and recommended

Inapplicable

Configure stack IDs for member switches one by one before capacity expansion.
  1. Place member switches, log in to the stack, and configure stack IDs for new member switches.
  2. Power off the new member switches and then connect them to the stack using stack cables.
  3. Power on the new member switches.

Applicable and recommended

Applicable and recommended

Stack IDs of new member switches are not 0.

Configure stack IDs for new member switches one by one before capacity expansion.
  1. Place member devices.
  2. Set the stack IDs of the new member switches one by one to the expected values.
  3. Connect the new member switches to the stack using stack cables.

Applicable and recommended

Applicable and recommended

Add the new member switches to the stack and then change the stack IDs of the switches.
  1. Place member devices.
  2. Connect new member switches to the stack using stack cables, and power on the new member switches, which then join the stack and obtain auto-negotiated stack IDs.
  3. Log in to the stack to change the stack IDs of the new member switches to the expected values and then restart these switches.

Applicable and recommended

Inapplicable

A member switch needs to be replaced.

Log in to the member switch to clear the startup configuration file and restore its stack ID to 0.

A stack needs to be split.

Log in to the member switch to be removed to clear the startup configuration file and restore its stack ID to 0.

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Updated: 2019-09-23

Document ID: EDOC1000178167

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