H3C S3100-52P Manuale utente

Operation Manual – Stack-Cluster

H3C S3100-52P Ethernet Switch Table of Contents

Table of Contents

Chapter 1 Stack .............................................................................................................................1-1

1.1 Stack Function Overview...................................................................................................1-1

1.1.1 The Main Switch of a Stack.....................................................................................1-1

1.1.2 The Slave Switches of a Stack................................................................................1-1

1.1.3 Creating a Stack......................................................................................................1-1

1.2 Main Switch Configuration.................................................................................................1-2

1.2.1 Configuring the IP Address Pool and Creating the Stack.......................................1-2

1.2.2 Switching to Slave Switch View ..............................................................................1-3

1.2.3 Stack-Port Function Configuration..........................................................................1-3

1.3 Slave Switch Configuration................................................................................................1-4

1.4 Displaying and Debugging a Stack....................................................................................1-4

1.5 Stack Configuration Example ............................................................................................1-5

Chapter 2 Cluster...........................................................................................................................2-1

2.1 Cluster Overview................................................................................................................2-1

2.1.1 Introduction to HGMP..............................................................................................2-1

2.1.2 Roles in a Cluster....................................................................................................2-2

2.1.3 How a Cluster Works ..............................................................................................2-4

2.2 Cluster Configuration Task List........................................................................................2-10

2.2.1 Configuring the Management Device....................................................................2-11

2.2.2 Configuring Member Devices................................................................................2-16

2.2.3 Managing a Cluster through the Management Device..........................................2-18

2.2.4 Configuring the Enhanced Cluster Features.........................................................2-19

2.3 Displaying and Maintaining Cluster Configuration...........................................................2-22

2.4 Cluster Configuration Examples......................................................................................2-22

2.4.1 Basic Cluster Configuration Example....................................................................2-22

2.4.2 Enhanced Cluster Feature Configuration Example...............................................2-26

Operation Manual – Stack-Cluster

H3C S3100-52P Ethernet Switch Chapter 1 Stack

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Chapter 1 Stack

1.1 Stack Function Overview

A stack is a management domain formed by a group of Ethernet switches

interconnected through their stack ports. A stack contains a main switch and multiple

slave switches.

Logically, you can consider a stack a single device and manage all the switches in a

stack through the main switch.

1.1.1 The Main Switch of a Stack

You can configure multiple Ethernet switches interconnected through their stack ports

to form a stack by performing configurations on one of the switches. In this case, the

switch becomes the main switch of the stack.

You can perform the following operations on a main switch:

zConfiguring an IP address pool for the stack

zCreating the stack

zSwitching to slave switch view

Before creating a stack, you need to configure an IP address pool for the stack on the

main switch. When adding a switch to a stack, the main switch picks an IPaddress from

the IP address pool and assigns the IP address to it automatically.

After a stack is created, the main switch automatically adds the switches that

connected to its stack ports to the stack. If a stack port connection is disconnected, the

corresponding slave switch quits the stack automatically.

1.1.2 The Slave Switches of a Stack

All the switches in a stack except the main switch are slave switches.

You can configure a slave switch in a stack on the main switch.

1.1.3 Creating a Stack

The following are the phases undergone when a stack is created.

zConnect the intended main switch and slave switches through stack modules and

dedicated stack cables. (Refer to H3C S3100-52P Ethernet Switch Installation

Manual for the information about stack modules and stack cables.)

zConfigure the IP address pool for the stack and enable the stack function. The

main switch then automatically adds the switches connected to its stack ports to

the stack.

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zWhen adding a switch joins in a stack, the main switchautomatically assigns an IP

address to it.

zThe main switch automatically adds any switches that are newly connected to the

stack through their stack ports to the stack.

1.2 Main Switch Configuration

The main switch configuration includes:

zConfiguring the IP Address Pool and Creating the Stack

zSwitching to Slave Switch View

1.2.1 Configuring the IP Address Pool and Creating the Stack

Table 1-1 Configure the IP address pool and create the stack

Operation Command Description

Enter system view system-view —

Configure an IP

address pool for a

stack

stacking ip-pool

from-ip-address

ip-address-number

[ip-mask ]

Required

from-ip-address: Start address of the IP

address pool.

ip-address-number: Number of the IP

addresses in the IP addresses pool. A

pool contains 16 addresses by default.

ip-mask: Mask of the IP address pool.

By default, the IP addresses pool is not

configured.

Create a stack stacking enable Required

Note:

Remove the IP address configured for the existing Layer 3 interface first if you want to

cancel the stack-related configuration, otherwise, IP address conflicts may occur.

As for the stack-related configurations performed on a main switch, note that:

zAfter a stack is created, the main switch automatically adds the switches

connected to its stack ports to the stack.

zIf a stack port connection is disconnected, the corresponding slave switch quits

the stack automatically.

zThe IP address pool of an existing stack cannot be modified.

zTo add a switch to a stack successfully, make sure the IP address pool contains at

least one unoccupied IP address.

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H3C S3100-52P Ethernet Switch Chapter 1 Stack

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zMake sure the IP addresses in the IP address pool of a stack are successive so

that they can be assigned successively. For example, the IP addresses in an IP

address pool with its start IP address something like 223.255.255.254 are not

successive. In this case, errors may occur when adding a switch to the stack.

zIP addresses in the IP address pool of a stack must be of the same network

segment. For example, the 1.1.255.254 is not a qualified start address for a stack

IP address pool.

zIf the IP address of the management VLAN interface of the main switch(or a slave

switch) is not of the same network segment as that of the stack address pool, the

main switch (or the slave switch) automatically removes the existing IP address

and picks a new one from the stack address pool as its IP address.

zSince both stack and cluster use the management VLAN and only one VLAN

interface is available on the S3100-52P switch, stack and cluster must share the

same management VLAN if you want to configure stack within a cluster.

1.2.2 Switching to Slave Switch View

After creating a stack, you can switch to slave switch view from the main switch to

configure slave switches.

Table 1-2 Switch to slave switch view

Operation Command Description

Switch to slave

switch view stacking number

Required

Number: Number of the slave switch to

switch to.

This command can be used to switch from

user view of the main switch to user view of

a slave switch. The user level remains the

same while switching.

You can quit slave switch view after slave switch configuration.

Table 1-3 Quit slave switch view

Operation Command Description

Quit slave switch

view quit You can quit slave switch view only by

executing this command in user view of a

slave switch.

1.2.3 Stack-Port Function Configuration

I. Introduction to the Stack-Port Function

If you enable the stack function on a stack-supporting device, the device will send

Operation Manual – Stack-Cluster

H3C S3100-52P Ethernet Switch Chapter 1 Stack

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join-in requests to the connected stack ports of all the switches connected with the

device. This may cause switches not expecting to join in the stack to join in the stack

automatically, affecting network stability.

You can configure the stack-port function on the stack ports that are connected with

other switches to choose whether to send join-in requests to the switches, so as to

prevent the switches that do not belong to the local stack from joining in.

II. Stack-Port Function Configuration

Follow these steps to configure the stack port function:

To do… Use the command… Remarks

Enter system view system-view —

Enter port view interface interface-type

interface-number —

Enable the

stack-port function

on the stack port stack-port enable

Required

Enabled by default.

After a switch joins in a stack or

becomes the master switch of a

stack, the switch will

send/forward stack join-in

requests through this stack port.

1.3 Slave Switch Configuration

Just make sure the slave switch is connected to the main switch through the stack ports.

No configuration is needed.

1.4 Displaying and Debugging a Stack

Use the display command to display the information about a stack. The display

command can be executed in any view.

Operation Manual – Stack-Cluster

H3C S3100-52P Ethernet Switch Chapter 1 Stack

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Table 1-4 Display and maintain stack configurations

Operation Command Description

Display the stack

status information

on the main switch

display stacking

[ members ]

Optional

The display command can be executed

in any view.

When being executed with the members

keyword not specified, this command

displays the main switch and the number

of switches in the stack.

When being executed with the members

keyword specified, this command

displays the member information of the

stack, including stack number , device

name, MAC addresses and status of the

main switch/slave switches.

Display the stack

status information

on a slave switch display stacking

Optional

The display command can be executed

in any view.

The displayed information indicates that

the local switch is a slave switch. The

information such as stack number of the

local switch, and the MAC address of the

main switch in the stack is also

displayed.

1.5 Stack Configuration Example

I. Network requirements

Connect Switch A, Switch B and Switch C with each other through their stack ports to

form a stack, in which Switch A acts as the main switch, while Switch B and C act as

slave switches.

Configure Switch B and Switch C through Switch A.

Operation Manual – Stack-Cluster

H3C S3100-52P Ethernet Switch Chapter 1 Stack

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II. Network diagram

Figure 1-1 Network diagram for stack configuration

III. Configuration procedure

# Configure the IP address pool for the stack on SwitchA.

<Sysname> system-view

[Sysname] stacking ip-pool 129.10.1.15 3

# Create the stack on switch A.

[Sysname] stacking enable

[stack_0.Sysname] quit

<stack_0.Sysname>

# Display the information about the stack on switch A.

<stack_0.Sysname> display stacking

Main device for stack.

Total members:3

Management-vlan:1(default vlan)

# Display the information about the stack members on switchA.

<stack_0.Sysname> display stacking members

Member number: 0

Name:stack_0.Sysname

Device: S3100-52P

MAC Address:000f-e20f-c43a

Member status:Admin

IP: 129.10.1.15 /16

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Member number: 1

Name:stack_1.Sysname

Device: S3100-52P

MAC Address: 000f-e200-3130

Member status:Up

IP: 129.10.1.16/16

Member number: 2

Name:stack_2.Sysname

Device: S3100-52P

MAC Address: 000f-e200-3135

Member status:Up

IP: 129.10.1.17/16

# Switch to Switch B (a slave switch).

<stack_0.Sysname> stacking 1

<stack_1.Sysname>

# Display the information about the stack on switch B.

<stack_1.Sysname> display stacking

Slave device for stack.

Member number:1

Management-vlan:1(default vlan)

Main device mac address: 000f-e20f-c43a

# Switch back to Switch A.

<stack_1. H3C> quit

<stack_0.Sysname>

# Switch to Switch C (a slave switch).

<stack_0.Sysname> stacking 2

<stack_2.Sysname>

# Switch back to Switch A.

<stack_2.Sysname> quit

<stack_0.Sysname>

Operation Manual – Stack-Cluster

H3C S3100-52P Ethernet Switch Chapter 2 Cluste

2-1

Chapter 2 Cluster

When configuring cluster, go to these sections for information you are interested in:

zCluster Overview

zCluster Configuration Task List

zDisplaying and Maintaining Cluster Configuration

zCluster Configuration Examples

2.1 Cluster Overview

2.1.1 Introduction to HGMP

Acluster contains a group of switches. Through cluster management, you can manage

multiple geographically dispersed in a centralized way.

Cluster management is implemented through Huawei Group Management Protocol

(HGMP). HGMP version 2 (HGMPv2) is used at present.

A switch in a cluster plays one of the following three roles:

zManagement device

zMember device

zCandidate device

A cluster comprises of a management device and multiple member devices. To

manage the devices in a cluster, you need only to configure an external IP address for

the management switch. Cluster management enables you to configure and manage

remote devices in batches, reducing the workload of the network configuration.

Normally, there is no need to configure external IP addresses for member devices.

Figure 2-1 illustrates a cluster implementation.

Operation Manual – Stack-Cluster

H3C S3100-52P Ethernet Switch Chapter 2 Cluste

2-2

Figure 2-1 A cluster implementation

HGMP V2 has the following advantages:

zIt eases the configuration and management of multiple switches: You just need to

configure a public IP address for the management device instead of for all the

devices in the cluster; and then you can configure and manage all the member

devices through the management device without the need to log onto them one by

one.

zIt provides the topology discovery and display function, which assists in monitoring

and maintaining the network.

zIt allows you to configure and upgrade multiple switches at the same time.

zIt enables you to manage your remotely devices conveniently regardless of

network topology and physical distance.

zIt saves IP address resource.

2.1.2 Roles in a Cluster

The switches in a cluster play different roles according to their functions and status. You

can specify the role a switch plays. A switch in a cluster can also switch to other roles

under specific conditions.

As mentioned above, the three cluster roles are management device, member device,

and candidate device.

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