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
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.
In a previous blog we were briefly introduced to a solution that enabled a packet-layer PCE to learn about the topology and link attributes of an under-lying transport layer network. This enables the packet-layer PCE to make more informed path computations by taking into account transport layer properties that would otherwise be hidden from the packet layer. In this blog, we will see the solution working, including several screen shots illustating the behavior, with a 3rd party transport system.
iPhone is no doubt one of the most successful products in the history of technology. Aside from other factors, the App Store provided a key differentiator that made it hard for other smartphone vendors to replicate. In July 2009, within a year of its launch, 1.5 billion applications (apps) for the Apple iPhone had been sold from its App Store.
Ultimately, the App Store provided a platform for new innovations in mobile software application. Beyond the smartphone hardware itself, the broad selection of apps is a major reason why consumers want the iPhone, and the sticky factor for consumers to keep buying iPhones.
Can the iPhone App Store success be replicated by telecom service providers? With a little bit of help from modern networking technologies, it is possible!