H3C Technologies H3C Intelligent Management Center - Manual (Page 41)

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a. The navigation prompts the common SPL to publish the request for the Interface List and the
Interface Details page for the specific interface.
b. The SLL picks up both requests.
c. The SLL identifies which of the several CSUs should be invoked by the request and forwards the
request to the appropriate CSU, in this case the Resource CSU.
d. The Resource CSU again publishes the request for data, which is picked up by the Data
Abstraction Layer.
e. The Data Abstraction layer responds to the request by initiating a query to the database to
render the information on the Interface List page.
f. The Data Abstraction layer publishes a response, which is picked up by the Resource CSU and
published on the communication bus, which the common SPL picks up and displays on the
operator's local computer.
7. Click the DOWN option from the Action menu located on the right of the Interface Details page.
The following workflow applies:
a. The navigation prompts the common SPL to publish the request for the interface DOWN
function, which is picked up by the SLL.
b. The SLL identifies which of the several CSUs should be invoked by the request and forwards the
request to the appropriate CSU, in this case the Configuration CSU.
c. The Configuration CSU publishes the request on the communication bus, which is picked up by
the Data Abstraction Layer.
d. The Data Abstraction layer determines which of the 2500+ device abstractions is required to
fulfill this DOWN request. (A device abstraction in IMC includes a combination of information
about the device including vendor, device type, model, command set, and execution method.)
e. Once the Data Abstraction Layer has identified the abstraction to use, it then publishes a
request on the communication bus for the method of communication.
f. The IMC database picks up the request and publishes the communication method (SNMP,
Telnet, or SSH) configured for the device.
g. The Data Abstraction layer picks up the response and begins communicating with the device
itself using the communication method specified by the database.
h. Using the command set and execution method specified in the abstraction, the Data
Abstraction Layer issues the interface DOWN request to the device.
i. The Data Abstraction Layer then publishes the status for the DOWN request to the
communication bus, which is picked up by the Configuration CSU.
j. The Configuration CSU publishes the status to the communication bus, which is picked up by
the common SPL and rendered on the operator's local computer.
SOA framework
The SOA single, integrated framework provides organizations with a foundation for network
management based on the FCAPS model that is both scalable and extensible. Network infrastructures
can grow in size, in demand for performance, in diversity of device types, and in demand for new
functionality and IMC grows with them. First, networks grow in size.
With IMC SOA framework, organizations can deploy multiple IMC systems to new areas of growth. All
IMC instances can communicate with each other and share information through hierarchical or
parent/child relationships with each other.