When configuring stack management, go to
these sections for information you are interested in:
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Stack
Management Overview
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Stack
Management Configuration Task List
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Configuring
the Master Device of a Stack
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Configuring
Stack Ports of a Slave Device
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Switching
from the Master Device to a Slave Device
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Displaying
and Maintaining Stack Management
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Stack
Management Configuration Example
A stack is a set of network devices.
Administrators can group multiple network devices into a stack and manage them
as a whole. Therefore, stack management can help reduce customer investments
and simplify network management.
A stack is a management domain that comprises several network
devices connected to one another through stack ports. In a stack, there is a
master device and several slave devices.
An administrator can manage all the devices
in a stack through the master device. Figure 1-1 shows a network diagram for
stack management.
Figure 1-1 Network diagram for stack management
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Master device: In a stack, the master device
acts as the configuration interface in stack management. Management and
monitoring of all the devices in the stack are performed through the master
device.
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Slave devices: Managed devices in a stack.
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Stack port: Ports that connect the master device
and slave devices, and ports connect between the slave devices in a stack.
An administrator can establish a stack as
follows:
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Configure a private IP address pool for a stack
and create the stack on the network device which is desired to be the master
device.
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Configure ports that connect the master device
and slave devices, and ports that connect between the slave devices as stack
ports.
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The master device automatically adds the slave
devices into the stack, and assigns a number for each stack member.
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The administrator can log in to any slave device
from the master device of the stack, and perform configurations for the slave
device.
Complete the following tasks to configure
stack management:
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To do…
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Use the command…
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Remarks
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Enter system view
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system-view
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—
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Configure a private IP address pool for
the stack
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stack ip-pool ip-address { mask | mask-length }
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Required
By default, no IP address pool is
configured for a stack.
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If a device is already configured as the master
device of a stack or is already a slave device of a stack, you cannot configure
a private IP address pool on the device.
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When you configure a private IP address pool for
a stack, the number of IP addresses in the address pool needs to be equal to or
greater than the number of devices to be added to the stack. Otherwise, some
devices may not be able to join the stack automatically for lack of private IP
addresses.
On the master device, configure ports that
connect the master device and the slave devices as stack ports.
Follow the steps below to configure stack
ports:
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To do…
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Use the command…
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Remarks
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Enter system view
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system-view
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—
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Configure the specified ports as stack
ports
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stack stack-port
stack-port-num port interface-list
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Required
By default, a port is not a stack port.
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After you execute the stack role master command
on a stack-supporting device, the device becomes the master device of a stack
and automatically adds the devices connected with its stack ports to the stack.
Follow the steps below to create a stack:
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To do…
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Use the command…
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Remarks
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Enter system view
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system-view
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—
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Create a stack
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stack role master
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Required
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After you configure
a device as the master device of a stack, the prompt changes to
<stack_0.Sysname>, where Sysname is the system name of the device.
You need to configure stack ports to add a
slave device to the stack.
The ports of a slave device that connect the
stack devices need to be configured as stack ports.
Follow the steps below to configure stack
ports:
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To do…
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Use the command…
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Remarks
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Enter system view
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system-view
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—
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Configure the specified ports as stack
ports
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stack stack-port
stack-port-num port interface-list
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Required
By default, a port is not a stack port.
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After a device
joins a stack and becomes a slave device of the stack, the prompt changes to
<stack_n.Sysname>, where n is the stack number assigned by the master
device, and Sysname is the system name of the device.
In a stack, you can switch from the master
device to the operation interface of a slave device and perform configurations
for the slave device.
Follow the step below to switch from the
master device to a slave device:
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To do…
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Use the command…
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Remarks
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Switch from the master device to the
specified slave device
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stack switch-to member-id
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Required
Available in user view
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The stack switch-to command is used to
switch from the master device to a slave device with the user level unchanged.
To switch back, use the quit command.
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Before the switch, execute the telnet server
enable command to enable Telnet. Otherwise, the switch fails.
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To do…
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Use the command…
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Remarks
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Display the stack information of stack
members
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display stack [ members ]
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Available in any view
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I. Network requirements
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Switch A, Switch B, Switch C, and Switch D are
connected with one another.
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Create a stack, where Switch A is the master
device, Switch B, Switch C, and Switch D are slave devices. An administrator
can log in to Switch B, Switch C and Switch D through Switch A to perform
remote configurations.
II. Network diagram
Figure
1-2 Network diagram for stack management
III. Configuration procedure
1)
Configure the master device
# Configure a private IP address pool for
the stack on Switch A.
<SwitchA> system-view
[SwitchA] stack ip-pool 192.168.1.1
24
# Configure port GigabitEthernet 1/0/1 as a
stack port on Switch A.
[SwitchA] stack stack-port 1 port
GigabitEthernet 1/0/1
# Create a stack.
[SwitchA] stack role master
2)
Configure the slave devices
# On Switch B, configure local ports
GigabitEthernet 1/0/2, GigabitEthernet 1/0/1, and GigabitEthernet 1/0/3 as
stack ports.
<SwitchB> system-view
[SwitchB] stack stack-port 3 port
GigabitEthernet 1/0/1 GigabitEthernet 1/0/2 GigabitEthernet 1/0/3
# On Switch C, configure local port
GigabitEthernet 1/0/1 as a stack port.
<SwitchC> system-view
[SwitchC] stack stack-port 1 port
GigabitEthernet 1/0/1
# On Switch D, configure local port
GigabitEthernet 1/0/1 as a stack port.
<SwitchD> system-view
[SwitchD] stack stack-port 1 port
GigabitEthernet 1/0/1
3)
Verify the configuration
# Display stack information of the stack
members on Switch A.
<stack_0.SwitchA> display stack
members
Number : 0
Role : Master
Sysname : stack_0.SwitchA
Device type: Simware
MAC address: 000f-e200-1000
Number : 1
Role : Slave
Sysname : stack_1.SwitchB
Device type: Simware
MAC address: 000f-e200-1001
Number : 2
Role : Slave
Sysname : stack_2.SwitchC
Device type: Simware
MAC address: 000f-e200-1002
Number : 3
Role : Slave
Sysname : stack_3.SwitchD
Device type: Simware
MAC address: 000f-e200-1003
