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IRF
IRF Overview
An Intelligent Resilient Framework (IRF) 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.
multiple network devices into a stack and manage them as a whole. Therefore, stack management can
help reduce customer investments and simplify network management.
Introduction to Stack
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.
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.
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.
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 between stack devices.
Establishing 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
to be configured as the master device.
to be configured as the master device.
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Configure ports between the stack devices as stack ports.
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The master device automatically adds the slave devices into the stack, and allocates a private IP
address and a member ID for each slave device.
address and a member ID for each slave device.