Cross-domain analysis example

Initially, during topology creation, the
creates proxy object instances corresponding to object instances in the
and in the
. In this example we show a
TopologicalLink Down
problem in
impacting a NetworkConnection in the IP network.
The
imports OTM and IP technology related to the Circuit and NetworkConnection including the Circuit, NetworkConnection, Routers, Cards, and Interfaces.
also creates relationships between the Optical topology and the IP topology, such as a NetworkConnection is LayeredOver a Circuit.
In the example shown in
Figure 1-3
, a failure in the Optical network causes a failure in the ability to communicate between two IP Routers. In order for
to perform analysis, it monitors events in OTM and IP domains via remote instrumentation. In this case, OTM notifies TopologicalLink
Down
, and Circuit
ServiceUnavailable
. IP notifies NetworkConnection
Down
.
receives these events and determines the true root cause. It determines that TopologicalLink
Down
in OTM causes the NetworkConnection
Down
in IP and provides this to SAM. As a result, SAM shows the root cause as TopologicalLink
Down
, and an impact of NetworkConnection
Down
and Circuit
ServiceUnavailalble
.
Cross-domain analysis example