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### MBean Instances on the Master Node One instance of each of the following MBeans is instantiated on the master node of the cluster. `CmmMasterNodeMBean` `CmmMasterStatisticsMBean` `RnfsMasterStatisticsMBean` `PmdMasterStatisticsMBean` `CgtpMasterMBean` An `RnfsReplicatedSliceMBean` is instantiated on the master node and on the vice-master node for each Reliable NFS partition. ### MBean Instances on Peer Nodes One instance of each of the following MBeans is instantiated on each peer node of the cluster: `ClusterNodeMBean` `CmmStatisticsMBean` `RnfsStatisticsMBean` `PmdStatisticsMBean` `CgtpMBean` `CgtpFilterMBean` Multiple instances of the following MBeans might be instantiated:
`CgtpReliableLinkStatisticsMBean` | One instance for each reliable link.
`PmdNameTagStatisticsMBean` | One instance for each group of processes monitored by the Daemon Monitor.
## Floating External Address An external Java manager can use the floating external address (for example, `10.250.10.1`) to communicate with the master node. After failover and switchover the floating address is reassigned to the new master node. The external Java manager must then connect to the new master node, but can connect to the same IP address as before. SNMP cannot use the floating external address to communicate with the master node.
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