Hello again, now that we know what is segment routing, time has come to uncover secrets of segments in Segment Routing(Source Routing) . Source Routing is about controlling routing by the source who initiates traffic, hence the routers within the path don’t know about the path to be taken. Data packet is forwarded step by step based on the path. At each step, the packet has a destination label. Router, based on this label directs the packet to its outgoing link. These labels
Network world is full of noise, a lot of buzz advancing every day. While the world was just trying to get connected with SDN, it has already led to the inception of yet another new technology: Segment Routing(SR). The veterans Clarence Filsfils and his team has successfully coined this term. Before the revelation of Segment Routing concept, let us find out what led to segment routing.
Well, Segment Routing(SR) has come into the world with the motive of removing MPLS. Yes, SR
Welcome all, after a short intro of BGP, let us try to extend our knowledge about BGP. We all are aware that BGP is inter-Autonomous System(AS) protocol and we also know what an Autonomous System is, in BGP world. Before going further, take a look at network below. From the network above it is quite clear that routers connecting two AS are using eBGP protocol(external BGP), on the other hand, routers used for connection within AS are using iBGP(internal BGP) protocol. Thus, B
Hey all, you must be quite comfortable with SDN, after creating a good connection with SDN. Now it is time to get into personal details of SDN 😛 . By that I mean, let us see what are the Building blocks of SDN network. If you remember the story in my earlier articles, Google Maps (controller), Tom N Jerry (switches) were the lead characters. So, it is quite obvious that controller, switches/routers, along with the applications form the three main building blocks of SDN. The
Hey all, we have created a connection with SDN. After getting introduced to SDN in my last post, let us find out the worth of SDN. In the last post, I told you a short story of Tom-Jerry, where on Jerry’s birthday, Tom gives a surprise visit to Jerry and how Tom is extremely happy, as he had the best journey, all thanks to Google Maps. Tom expresses his happiness to Jerry and they start discussing those old days when visiting Jerry was so hectic. While Tom remembers some of h
Hey all, let us try to get acquainted with SDN. Now SDN stands for Software Defined networking. Let me put it like this ‘a software which defines networks’. As we all know, a network is like a map, where all the devices are inter-connected with each other. Devices can be routers, switches, computers, servers or you at one end and me at the other. The network is defined by links between these devices. Using these links data can travel from one point to another. Data can only t