After the initial discovery of the MPLS, VPN, and BGP objects, MPLS Manager continuously monitors the status of the LSP, LdpProtocolEndpoint, RsvpProtocolEndpoint, ForwarderEndpoint, and VRF objects, and the remote ping results, by periodically polling the SNMP agent of the devices in the managed MPLS network. The results of the polling, in addition to the status updates that are received from IP Availability Manager and Network Protocol Manager for BGP, serve as input to the MPLS Manager correlation analysis.
MPLS Manager detects events from the polling results and from the IP Availability Manager and Network Protocol Manager for BGP status updates, and correlates the events to diagnose root-cause problems and to generate impact events. Some of the detected events are misconfiguration events, which are not used to diagnose problems.
MPLS Manager creates a problem notification for each diagnosed problem, and creates an event notification for each misconfiguration or impact event.
The Global Manager imports:
All problem notifications that are diagnosed by MPLS Manager.
All misconfiguration event notifications that are detected by MPLS Manager.
All impact event notifications (described in Chapter 4, “MPLS Cross-Domain Impact Correlation Analysis”) that are generated by MPLS Manager.
The root-cause problem notifications and the event notifications are displayed in the Global Console.