H3C Technologies H3C S3100 Series Switches - Manual (Page 427)

Operation Manual – Cluster
H3C S3100-52P Ethernet Switch Chapter 1 Cluster
1-4
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The management device of the cluster recognizes and controls all the member
devices in the cluster, no matter where they are located in the network and how
they are connected.
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The management device collects topology information about all
member/candidate devices to provide useful information for you to establish the
cluster.
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By collecting NDP/NTDP information, the management device learns network
topology, so as to manage and monitor network devices.
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Before performing any cluster-related configuration task, you must first enable the
cluster function.
Note:
On the management device, you need to enable the cluster function and configure
cluster parameters. On the member/candidate devices, however, you only need to
enable the cluster function so that they can be managed by the management device.
Additionally, on the management device, you can configure the FTP server, TFTP
server, logging host and SNMP host to be shared by the whole cluster. When a member
device in the cluster communicates with an external server, the member device first
transmits data to the management device, which then forwards the data to the external
server. The management device is the default shared FTP/TFTP server for the cluster;
it serves as the shared FTP/TFTP server when no shared FTP/TFTP server is
configured for the cluster.
The most important function of clusters is to work in conjunction with the network
management software to implement large-scale network management. You can specify
a network management interface on the management device of a cluster, through
which the network administrator can log onto the management device to manage the
devices in the cluster.
Note:
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By default, the management VLAN interface is used as the network management
interface.
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There is only one network management interface on a management device; any
newly configured network management interface will overwrite the old one.