Hi all

I'm currently working on service function chaining (sfc) problem using matlab API and cplex.

Problem:  given a set of network functions in a predefined order, assign them to a network graph G =(V,E), to minimize for example end to end the latency.

I intend to use 2 binary variables, which is y(n,m) , assigning n network functions to m virtual nodes. x(i,m,m+1) to denote whether using the edge between node m and m + 1 as the i_th path.

The issue is that how to guarantee the network functions are in order on the selected path.

I'm sure a lot of people did this, but there is literally no academic reference about this.

Thanks all

Chen

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Chen Chen
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#DecisionOptimization