Huawei Technologies Proprietary
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Candidate device
Management device
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Candidate device
Management device
Figure 1-2 Role switching roles
z Each cluster has one (and only one) management device. A management device
collects NDP/NTDP information to discover and determine candidate devices,
which can be then added into the cluster through manual configurations.
z A candidate device becomes a member device after being added to a cluster.
z A member device becomes a candidate device after being removed from the
cluster.
Note:
After the cluster is set up, the S3900 switch will collect the topology information of the
network at the set interval and add the detected candidate devices into the cluster
automatically. As a result, if the interval of topology collection is too short (which is 1
minute by default), the switch exists as the candidate device of the cluster for a short
time. If it is unnecessary to add the candidate switches into the cluster automatically,
you can set the interval of topology collection to 0, that is, topology collection is not
performed periodically.
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