Posts related to SDN, Software Define Network, DC SDN, MPLS SDN, BGP-LS, Leaf and Spine switches
Software-defined Data Center is no longer a “marketing term” as many would make you believe. Rather, it is a complete framework for building your next software-based data center backed by standards. So it is important to understand a Software-defined data center ( SDDC)! But that’s not the only reason. The other reason is the confusion […]
Feeling confused about the role of SDN in NFV? You are not alone!.. Many get stuck in understanding the role of SDN in NFV. Still, others want to know what is SDN ? And Others simply are not clear about the use cases for SDN in NFV. Do you know that without the right SDN architecture, you […]
NETCONF/YANG vs TOSCA for NFV service orchestration is more of an academic discussion rather than a practical one. To many, there is a misunderstanding on the exact place where TOSCA should be used vs NETCONF/YANG. Trying to use one tool to do the other’s job is like fitting a square peg in round hole. Remove […]
Thinking of implementing SDN in your MPLS WAN ? without a forklift ? Look no further ! as BGP-LS ( BGP-Link State) and PCE ( Path computation Element) give a right combination. In this Blog, I talk about an evolutionary ( not the revolutionary approach) to SDN in WAN. SDN-based MPLS network, running PCE and […]
If you are a traditional optical/DWDM vendor, then be prepared for a shock! Because some of you believe that Optical/DWDM box can be the most closed platform in networking. After all, an optical signal is analog (not digital) therefore it is difficult to understand it. And since vendors use proprietary enhancements to carry signals; therefore, it is […]
In April 2002, a nationwide disruption hit AT&T that lasted 3 hours because of the misconfiguration of OSPF in a backbone router. In February 2009, a misconfigured router from SuproNet, a Czech ISP, caused internet services outages worldwide. In 2014, a misconfigured router in China affects 618 Million internet users for 8 hours. All above […]
The large web scale companies like Facebook, Amazon and Google love them. The traditional networking vendors hate them as they consider them a threat. The truth is that they have become significant in this age of SDN , thanks to their “Open Platform” concept. Therefore it is important to understand the basic concept of a […]
So you have your next appointment with a Transport/optics vendor for a presentation on its Transport SDN roadmap. And you are all set to explore the rosy picture the vendor wants to present about its Transport SDN’s roadmap. Therefore, it’s time to do some homework, so you can ask right questions from the vendor […]
API is the most powerful feature of SDN- the programmable network. It will open a world of opportunities in terms of flexibilities and features for both operators and app developers. The current networks are rigid and make operators “lock in” to vendors. SDN will help avoid this lock in by making a network a flexible […]
In cloud, lies opportunities for carriers. What traditional cloud has not been able to achieve, carrier cloud has all those ingredients to deliver. What makes carrier cloud different than traditional public and enterprise clouds? First few words about what is public and enterprise cloud? Public Cloud are designed on the concept of “ Scale Out” i.e. as […]