So in the last article, we discussed a bit of why a solution like LISP ( Locator/Identifier Separation Protocol) is required. To summarize, there aren’t enough IPv4 addresses to go around and there are too many IPv6 addresses to let them ‘roam’ using traditional routing methods. Available in IOS (15.1X+) and NX-OS with standards currently being developed within the IETF LISP Working Group, LISP provides a promising solution to mapping IP nodes to locations on the Internet.
If you read the last article, by now some of you are saying, “John, the devices that roam, such as mobile phones, can simply acquire new addresses on the most local network. Why do we need LISP?” It is true this is how we do it now, and it works reasonably well for most users and applications. While it would be nice to seamlessly stream as we move from one network to another, that is more of a luxury feature than a necessity.
The Case for LISP
Let’s forget about mobile devices for just a moment and consider virtual machines and cloud computing. Virtual machines (VM) themselves are increasingly mobile. If I want to do maintenance on some bare metal, I can migrate that VM to another node but if my IP address is going to change, this adds a series of complications in updating services and applications such as DNS (Domain Name Service), to point at the correct address. These name to address mappings can be cached causing significant delays between a desired move and an actualized result when the cache finally expires. Read More »
Solving the Network Location Problem with LISP (Locator/Identifier Separation Protocol)
The first thing that comes to mind when someone mentions location is our GPS location. Our ability to roam around the earth with our mobile devices is something many of us take for granted. However, at the packet level on the Internet of Everything (IOE), trying to map the network location of a trillion new things may require some new thinking.
Cisco today introduced Application-Centric Infrastructure as the vision for Next Generation Data Center architecture, built for both today’s physical and virtual workloads as well as tomorrow’s highly dynamic Cloud-based, and performance-intensive big data application environments. Please check out Padmasree Warrior’s blog or Cisco Unified Fabric to learn more.
What I would like to share with you is how we are evolving the Cisco Unified Fabric to deliver operational simplicity through superior integration.
Delivering Operational Simplicity through Superior Integration
As organizations accelerate private and public cloud deployments, IT organizations and data center networks must evolve to meet rapidly changing and growing requirements. Virtualized and cloud environments require more agility and simplicity to quickly deploy and migrate virtual machines. IT organizations, on the other hand, are challenged with operational complexity, architectural rigidity and infrastructure inefficiency with manual processes, disjointed provisioning, deficient software overlays, static resource allocations and disruptions when growth is needed.
The good news is that Cisco continues to evolve its Unified Fabric to address these needs. The new Cisco Dynamic Fabric Automation delivers unsurpassed operational simplicities through superior integration. It does this by …. Read More »
Among all the Megatrends that have significant implications from an infrastructure perspective (as discussed here), the one that customers in EMEAR currently expect the most from Cisco is Clouds. Both in terms of technical guidance as well as architectural innovations.
In the Cisco Cloud approach, intelligence in the network can help ensure delivery of cloud services, provide access and services to the right users, and offer the flexibility to connect with public, hybrid, and community clouds.
As shown in the illustration to the right, three main elements must be considered to build an efficient cloud. In addition, the network needs to provide dynamic access to these resources, and the Cloud applications and services must deliver anywhere, anytime access.
With the emergence of Cloud architectures, innovation is required within the network to allow IP to gain two critical features not natively provided by IP today: IP mobility and the Virtual Private Network (VPN). Read More »
Hello, and welcome to my blog. As a new member of the Enterprise Networking’s Solutions Marketing team, I’ll be writing about connectivity to the cloud, Software Defined Networking (SDN) and virtualized routing. You can expect to learn details around Cisco’s architecture and product offerings in these topics. Further, based on your comments, I can go into as much detail as necessary.
First, a brief background. I moved to the Bay Area last November from Boston after almost 20 years in New England (in Boston), so I will be musing about culture shocks between the two coasts. I may also learn to like the Warriors and Niners, but I will always be a Celtics and Patriots fan. Read More »