Java SNMP Oplet

Oct 26, 2014Download as ppt, pdf

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Portable across a range of devices Extensible Simple and convenient for client use Consistent with SNMP model Hide unnecessary SNMP details Permit optimized access Re-use MIB documentation

Goals
• Portable across a range of devices
• Extensible
• Simple and convenient for client use
• Consistent with SNMP model
• Hide unnecessary SNMP details
• Permit optimized access
• Re-use MIB documentation

API Generation
• Most of the Java code is generated
automatically
• ASN.1 MIB definitions are converted into
Java classes
• Documentation and commentary in the
MIB definitions is placed as Javadoc
formal comments
• HTML documentation generated from
Javadoc

MIB Objects
• The MIB data model is structured as a
tree
• API represents MIB groups with Java
classes
• MIB variables are represented with
accessor methods
• Conceptual tables are represented with
iterators
• API converts SNMP data values into
standard Java types

API Architecture
Java
Virtual
Machine
Client API
Abstract Variable Interface
MIB Map
Native Variable Interface
SNMP PDU Layer
Instrumentation
& Annotation
Layer
Real Time Operating System
Processor and other Hardware
Client Bean

Variable access
• API uses a MIB Map to dispatch requests
to variable access routines
• Different parts of the MIB tree can be
serviced by different mechanisms
• Two main schemes:
• An ad hoc interface to the SNMP
instrumentation layer
• A generic SNMP loopback

Advantages of MIB map
• Allows immediate generic
implementation of the entire MIB via the
loopback scheme
• Enables optimized native implementation
of key MIB variables for maximum
efficiency
• Permits definition of pseudo-MIB
variables for extending MIB dynamically
• Provides site for centralized access
management

Proxy mode
• Uses SNMP loopback mechanism to
target a remote network element
• API can be used to control devices that
don’t have an embedded JVM
Cisco Router
JVM on PC with No JVM
Java Server
Java “Optlet”
JSNMP API
Proxy mode
SNMP

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Embodiments of the invention provide means to the users of the system to provide ratings and corresponding feedback for enhancing the genuineness in the ratings. The system includes a memory coupled to a processor. The memory includes one or more instructions executable by the processor to enable the users of the system to rate each other based on at least one of sharing, exchanging, and selling one of activity, service or product. The system may provide a mechanism to encourage genuineness in ratings provided by the users. Furthermore, the instructions facilitate the rating receivers to provide feedbacks corresponding to the received ratings. The feedback includes accepting or objecting to a particular rating. Moreover, the memory includes instructions executable by the processor to enable the system to determine genuineness of an objection raised by a rating receiver.

Time variant rating system and method thereofTal Lavian Ph.D.

Embodiments of the present invention provide a system for enhancing reliability in computation of ratings provided by a user over a social network. The system comprises of a processor and a memory coupled to the processor. The memory further comprises a rater score database, a satisfaction database, a social network registration database, a user profile database, and a plurality of instruction executable by the processor. Said instructions in the memory are enabled to accept a message from at least one user wherein said message comprises a satisfaction score associated with at least one service provider and to retrieve a rater score associated with said at least one user from said rater score database. Further, the memory includes instructions in order to compute a new satisfaction score based on said rater score and said satisfaction score and update said satisfaction database to include said new satisfaction score. In a similar manner, the new satisfaction score can be computed based upon the information stored in the social network registration database and user profile database.

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Java SNMP Oplet

1. Java SNMP Oplet Tal Lavian

2. Goals • Portable across a range of devices • Extensible • Simple and convenient for client use • Consistent with SNMP model • Hide unnecessary SNMP details • Permit optimized access • Re-use MIB documentation

3. API Generation • Most of the Java code is generated automatically • ASN.1 MIB definitions are converted into Java classes • Documentation and commentary in the MIB definitions is placed as Javadoc formal comments • HTML documentation generated from Javadoc

4. MIB Objects • The MIB data model is structured as a tree • API represents MIB groups with Java classes • MIB variables are represented with accessor methods • Conceptual tables are represented with iterators • API converts SNMP data values into standard Java types

5. API Architecture Java Virtual Machine Client API Abstract Variable Interface MIB Map Native Variable Interface SNMP PDU Layer Instrumentation & Annotation Layer Real Time Operating System Processor and other Hardware Client Bean

6. Variable access • API uses a MIB Map to dispatch requests to variable access routines • Different parts of the MIB tree can be serviced by different mechanisms • Two main schemes: • An ad hoc interface to the SNMP instrumentation layer • A generic SNMP loopback

7. Advantages of MIB map • Allows immediate generic implementation of the entire MIB via the loopback scheme • Enables optimized native implementation of key MIB variables for maximum efficiency • Permits definition of pseudo-MIB variables for extending MIB dynamically • Provides site for centralized access management

8. Proxy mode • Uses SNMP loopback mechanism to target a remote network element • API can be used to control devices that don’t have an embedded JVM Cisco Router JVM on PC with No JVM Java Server Java “Optlet” JSNMP API Proxy mode SNMP

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