Combining security with network routers.
Cloud revenue expected to grow to $522 billion by 2026.
Take a Network Break! We cover Cisco cloud ASICs, examine the results of data center & server efficiency on electricity consumption, critique the IEEE for taking so long to officially ratify 25GigE, and more. The post Network Break 95: Cisco Trumpets Custom ASICs; DC Efficiency Yields Results appeared first on Packet Pushers.
Any time a ranking of a technology is put together, that ranking is always called into question as to whether or not it is representative of reality. Rankings, such as the Top 500 list of the top supercomputers in the world, has been the subject of such debate with regards to the Linpack Fortran performance benchmark that is used to create the rankings and its relevance to the performance of actual workloads. When it comes to networking, the changes in the list in recent years are likely a better reflection of what is going on in high performance computing in …
Competition Heats Up In Cluster Interconnects was written by Timothy Prickett Morgan at The Next Platform.
Identify network outages before they happen.
A couple of weeks ago, I attended a special segment routing Networking Field Day. This set me to thinking about how I would actually use segment routing in a live data center. As always, I’m not so concerned about the configuration aspects, but rather with what bits and pieces I would (or could) put together to make something useful out of these particular 0’s and 1’s. The fabric below will be used as our example; we’ll work through this in some detail (which is why there is a “first part” marker in the title).
This is a Benes fabric, a larger variation of which which you might find in any number of large scale data center. In this network, there are many paths between A and E; three of them are marked out with red lines to give you the idea. Normally, the specific path taken by any given flow would be selected on a somewhat random basis, using a hash across various packet headers. What if I wanted to pin a particular flow, or set of flows, to the path outlined in green?
Let’s ask a different question first—why would I want to do such a thing? There are Continue reading