Cumulus, Dell, Red Hat Demo Linux as Full Stack SDDC
Cumulus Networks announced today that in conjunction with Dell and Red Hat, it has created a 300+ node OpenStack pod using standard open source DevOps tools to manage the deployment from top to bottom (i.e. from the spine switch down to the compute node). I thought that was interesting enough to justify a quick post.
All Linux, All The Time
I visited with Cumulus Linux as part of Networking Field Day 9 and learned two very important things:
- Cumulus co-founder, CEO (at the time), and now CTO, JR Rivers makes a mean cup of espresso;
- The culture at Cumulus is all about standards. It was expressed repeatedly that Cumulus want to ensure that their linux is absolutely standard, so the file system hierarchy should be the standard, configuration files should be where they normally are, and so forth. A system that doesn’t follow those guidelines becomes a special snowflake that can’t be supported by regular tools and, as you’ll see, this attitude has paid dividends in this solution.
The idea of this software stack demo is to take linux-based switches (Dell brite-box
Cumulus-certified hardware running the Cumulus Linux OS) and connect in linux-based compute resources (Dell PowerEdge servers running Continue reading
Buenos Aires Under Construction
The post Buenos Aires Under Construction appeared first on 'net work.
The complexity required for robustness, often goes against robustness
In the past few months we have seen major outages from United Airlines, the NYSE, and the Wall Street Journal. With almost 5,000 flights grounded, and NYSE halting trading the cost of failure is high. When bad things happen IT personal everywhere look at increasing fault tolerance by adding redundancy mechanisms or protocols to increase robustness. Unfortunately the complexity that comes with these additional layers often comes with compromise.
The last thing your boss wants to hear is, “The network is down!”. Obviously it’s your job to prevent that from happening, but at what cost? Many of us enjoy twisting those nerd knobs, but that tends to only harbor an environment with unique problems. I too fear the current trend of adding layer after layer of network duct tape to add robustness, or worse, to try and fix shortcomings in applications. NAT, PBR, GRE, VXLAN, OTV, LISP, SDN… where does it end!?
The greater the complexity of failover, the greater the risk of failure. We often forget the lessons of our mentors, but keeping the network as simple as possible has always been best practice. As Dijkstra said, “Simplicity is a great virtue but it requires hard work Continue reading
PQ Show 77: Location-Aware Apps With Aruba Meridian (Sponsored)
Today's Priority Queue, sponsored by Aruba Networks, talks about wireless location services. We examine use cases for location services, and dive into Aruba's Meridian platform for building location features into mobile applications.
The post PQ Show 77: Location-Aware Apps With Aruba Meridian (Sponsored) appeared first on Packet Pushers.
PQ Show 77: Location-Aware Apps With Aruba Meridian (Sponsored)
Today's Priority Queue, sponsored by Aruba, talks about wireless location services. We examine use cases for location services, and dive into Aruba's Meridian platform for building location features into mobile applications.
The post PQ Show 77: Location-Aware Apps With Aruba Meridian (Sponsored) appeared first on Packet Pushers.