TP-Link T3700G-28TQ T3700G-28TQ V1 UG - Page 346

Cluster

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Chapter 17 Cluster With the development of network technology, the network scale is getting larger and more network devices are required, which may result in a more complicated network management system. As a large number of devices need to be assigned different network addresses and every management device needs to be respectively configured to meet the application requirements, manpower are needed. The Cluster Management function can solve the above problem. It is mainly used to central manage the scattered devices in the network. A network administrator can manage and maintain the switches in the cluster via a management switch. The management switch is the commander of the cluster and the others are member switches. The typical topology is as follows. Figure17-1 Cluster topology  Cluster Role According to their functions and status in a cluster, switches in the cluster play different roles. You can specify the role a switch plays. There are four roles. Commander Switch: Indicates the device that can configure and manage all the devices in a cluster. It discovers and determins the candidate switches by collecting NDP (Neighbor Discovery Protocol) and NTDP (Neighbor Topology Discovery Protocol). Member Switch: Indicates the device that is managed in a cluster. Candidate Switch: Indicates the device that does not belong to any cluster though it can be added to a cluster. Individual Switch: Indicates the device with cluster feature disabled. The roles can be changed from one to anther following the specified rules.  The current switch you create cluster is specified as the commander switch.  The commander switch discovers and determines candidate switches by collecting related information.  After being added to the cluster, the candidate switch becomes to be the member switch.  After being removed from the cluster, the member switch becomes to be the candidate switch. 335

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Chapter 17 Cluster
With the development of network technology, the network scale is getting larger and more network
devices are required, which may result in a more complicated network management system. As a
large number of devices need to be assigned different network addresses and every management
device needs to be respectively configured to meet the application requirements, manpower are
needed.
The Cluster Management function can solve the above problem. It is mainly used to central
manage the scattered devices in the network. A network administrator can manage and maintain
the switches in the cluster via a management switch. The management switch is the commander
of the cluster and the others are member switches.
The typical topology is as follows.
Figure17-1 Cluster topology
Cluster Role
According to their functions and status in a cluster, switches in the cluster play different roles. You
can specify the role a switch plays. There are four roles.
Commander Switch:
Indicates the device that can configure and manage all the devices in a
cluster. It discovers and determins the candidate switches by collecting NDP (Neighbor Discovery
Protocol) and NTDP (Neighbor Topology Discovery Protocol).
Member Switch:
Indicates the device that is managed in a cluster.
Candidate Switch:
Indicates the device that does not belong to any cluster though it can be
added to a cluster.
Individual Switch:
Indicates the device with cluster feature disabled.
The roles can be changed from one to anther following the specified rules.
The current switch you create cluster is specified as the commander switch.
The commander switch discovers and determines candidate switches by collecting related
information.
After being added to the cluster, the candidate switch becomes to be the member switch.
After being removed from the cluster, the member switch becomes to be the candidate switch.
335