IBM Netcool/OMNIbus Probe for Nortel CNM manual Peer-to-Peer failover functionality

Peer-to-Peer failover functionality

The Probe for Nortel CNM supports failover configurations where two probes run simultaneously. One probe acts as the master probe, sending events to the ObjectServer; the other acts as the slave probe on standby. In the event of the master probe failing, the slave probe activates.

While the slave probe receives heartbeats from the master probe, it will not forward events to the ObjectServer. If the master shuts down, the slave probe will stop receiving heartbeats from the master and any events it receives thereafter will be forwarded to the ObjectServer on behalf of the master probe. When the master is running again, the slave will continue to receive events from the trap forwarder, but will no longer send them to the ObjectServer.

Example property file settings for peer-to-peer failover

The following configuration shows the peer-to-peer settings from the properties file of an example master probe:

Server	:"NCOMS"
RulesFile	:"master_rules_file"
MessageLog	:"master_log_file"
PeerHost	:"slave_hostname"
PeerPort	: 5555 # [communication port between master and slave probes]
Mode	:"master"

The following configuration shows the peer-to-peer settings from the properties file of the corresponding slave probe:

Server	:"NCOMS"
RulesFile	:"slave_rules_file"
MessageLog	:"slave_log_file"
PeerHost	:"master_hostname"
PeerPort	: 5555 # [communication port between master and slave probes]
Mode	:"slave"

Probe for Nortel CNM 9