Modified Files
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BGPSession.java |
BGPSession class of SSF network simulator is overwritten to be able to implement
SPVP.
Decision processes are changed to dynamically create and update the new path attribute
called history, and to suppress the routes whose
corresponding histories contain cycles. Two new classes called History and
PathChangeEvent are added to SSF simulator and used for this purpose.
|
| PathChangeEvent.java |
For SPVP, history is a dynamically
computed sequence of path change events.
A path change event is a pair e=(s,P), where s is either +
or - and indicates the sign of
the event and P is the path that is just seleted by the decision
process. PathChangeEvent class is
a new class added to SSF simulator.
|
| Route.java |
Route class of SSF network simulator has been updated to include
history attribute, and a boolean variable called epsilon indicating
whether or not this route is suppressed.
|
| History.java |
SPVP suggests adding a new
path attribute, called history, to update messages.
history is a dynamically computed sequence of PathChangeEvents
and checked for cycles to detect policy conflicts. Since divergence implies
a cycle in the history, the paths whose history contains cycles are
suppressed automatically. History class is a new addition to SSFNet
simulator.
|
| LocRIB.java |
LocRIB class of SSF network simulator has been updated to be able
to handle epsilon routes.
|
| Attribute.java |
Attribute class of SSF network simulator has been updated to include the
new attribute called history.
|
| Predicate.java |
Predicate class of SSF network simulator has been updated to be able
to handle epsilon routes.
|