In networking, we rely on routing protocols to compute best path. That is to ask, from the perspective of a given router in a routing domain, what is the best way to reach a destination? Best path is typically computed using simplistic metrics like hop count, cost, bandwidth, and delay. Traditional “best path” thinking is effective, insofar as it goes. It scales to a large number of devices and destinations. It is resilient. It is mature. However, it has its limitations. Software defined WAN brings a much more sophisticated metric to the computation of best path.
SDN & Open Networking
More live blogging from ONUG Spring 2015 in NYC. Coverage of sessions related to open networking, SDN, use cases, customer experiences with emerging technology, etc.
My live blog from the ONUG 2015 Spring event in NYC.
Dell is all about open networking, and several whitebox vendors had their wares on display at Interop. IP Infusion has released OcNOS, an open networking operating system with a rich feature set right out of the gate. Ethernet switching continues to change. If you are Yet Another Cisco Buyer, do you care? I think you should. There are real dollars at stake. Eventually, it gets silly and/or irresponsible to spend money on Cadillacs.
My interpretation of the SD-WAN value prop can be boiled down to cost savings, simplified operations, and improved application performance over inconsistently performing WAN links. Here’s the conundrum. An engineer might instinctively recoil at this sort of value proposition.
Should you go from the CCNA to the CCIE directly? Why or why not? Considering SDN, is going after the CCIE even a good idea? I opine.
Big Switch Networks has released version 2.5 of their Big Cloud Fabric SDN offering. Read the full press release here. What’s Big Cloud Fabric? BCF is an SDN-based IP fabric where you manage all of the individual switches as one “big switch.” In other words, you manage the fabric as a whole, and not individual switches. Big Switch’s BigTap, […]
A little bird pointed out this link to me, a wiki for the developer community for the Brocade Vyatta Controller (BVC). The big idea is to help foster community for folks building SDN applications for the BVC. What do I mean by “SDN applications”? I mean an application that does something interesting, and interacts with an SDN […]