Analysis
The status updates, which are
acquired from
IP Availability Manager
, from periodic SNMP monitoring, from periodic remote
pings, and (optional) from
serve as input to the data model in the
repository.
applies the status updates to the appropriate attributes of the corresponding
objects in the data model.
The data model involves a
codebook that is created by VMware engineers as a result of their knowledge of
IP and MPLS networks. The codebook identifies IP and MPLS problems and their
symptoms, and presents a causality mapping between each problem and its set of
symptoms.
diagnoses root-cause availability problems by finding the problems in the
codebook that can best explain the observed symptoms. It also uses the codebook
to correlate the impact of a root-cause problem on the MPLS and VPN objects
that are either inaccessible or impaired as a result of the root-cause problem.
The root-cause problem is either a physical-transport problem that is diagnosed
by
IP Availability Manager
, or an MPLS problem that is diagnosed by
.
performs root-cause analysis on alarms that occur at different layers of the
MPLS network domain in order to pinpoint the root cause. It also detects
configuration errors that occur when deploying and maintaining MPLS, VPN, and
BGP networks.