SDN and NFV Era
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During the 2016 MPLS WC conference in Paris, FR this past week we gave a demonstration of the Northstar TE ControllerTM learning, controlling and creating SPRING based Traffic Engineering LSPs across a Juniper Network. The Network consisted of seven Juniper vMX routers running ISIS and BGP.

 

The demonstration highlighted several pieces of technology and a number of Northstar’s existing applications such as:

 

  • Dynamic learning of SPRING Adjacency and Node SIDs via ISIS
  • Display of per Link Adjacency SIDs
  • Creation of SPRING TE LSPs via the Path Computation Protocol(PCEP)
  • Creation of diverse pairs of SPRING TE LSPs from different ingress routers using SRLG exclusion via the PCEP

Northstar’s maintenance application

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It can be challenging to obtain optimal bin packing without significant network disruption and/or bandwidth over-booking when RSVP-TE LSPs are reserving bandwidth in a network in a PCE controlled network. A complex and involved process of make-before-break(MBB) LSP creation and LSP preemption is needed to optimize an existing network.  Using Northstar's Zero-Bandwidth mode enables a PCE to route LSPs without considering the reservation style of the network or that a LSP set-up maybe rejected due to BW overbooking when a MBB operation is performed. This allows the PCE to optimize resource utilization more effectively and more aggressively thereby achieving greater network efficiency.

 

 

 

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