=== Desciption ===
Cosmos test-bet provides a possibility to create and use optical networks of various topologies. An example of how an optical network could be configured and used is provided. A simple experiment on switching of optical paths is described.

=== Compute Nodes and ToR switch interfaces used ===

* Each compute node has 2 ethernet interfaces: 
{{{
eo1 from data1 pool
eo2 form data2 pool
}}}

* Interfaces from srv1..4.lg1 -- data1 pool of interfaces
{{{
twentyFiveGigE 1/1/1      
twentyFiveGigE 1/1/2
twentyFiveGigE 1/1/3
twentyFiveGigE 1/1/4
}}}

* Interfaces from srv1..4.lg1 -- data2 pool of interfaces
{{{
twentyFiveGigE 1/2/1
twentyFiveGigE 1/2/2
twentyFiveGigE 1/2/3
twentyFiveGigE 1/2/4
}}}

* Interfaces from srv1..2.co1 -- data1 pool of interfaces
{{{
twentyFiveGigE 1/11/3
twentyFiveGigE 1/11/4
}}}

* Interfaces from srv1..2.co1 -- data2 pool of interfaces
{{{
twentyFiveGigE 1/12/3
twentyFiveGigE 1/12/4
}}}

=== Experiment_1 Context ===
 || [[Image(basic_usage_spectrum_view_1.png, width=500px)]] ||