It’s based on OpenStack, COTS hardware, and a pod architecture.
Dell anticipates declining demand for proprietary networking and storage architectures.
SSDs are on the rise as HDDs and traditional arrays decline in a turbulent market.
IT leaders need to fully understand costs and business need of the DIY model when considering cloud.
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In this post I’m going to talk about how to use Docker Machine to build a Docker Swarm cluster on Amazon Web Services (AWS). This post is an adaptation of this Docker documentation post that shows how to build a Swarm cluster using VirtualBox.
This post builds on the earlier post I wrote on using Docker Machine with AWS, so feel free to refer back to that post for more information or more details anywhere along the way.
At a high level, the process looks like this:
Let’s take a look at these steps in a bit more detail.
There’s at least a couple ways to do this, but they pretty much all involve a Linux VM using the Swarm Docker image. It’s up to you exactly how you want to do this—you can use a local VM, or you can use an AWS instance. The Docker documentation tutorial uses a local VM with the VirtualBox driver:
docker-machine create -d virtualbox local
env $(docker-machine env local)
docker run swarm create
The first command above creates a VirtualBox VM (named “local”) and Continue reading
I’ve worked on many large-scale MPLS VPN solutions, some with as many as 20k-30k managed CPEs, and as everybody knows – where you run BGP with this sort of setup. It’s almost always eBGP with a single AS across all sites using AS-override, or each site gets a different AS number, to get around the age-old eBGP loop prevention mechanisms which tend to get in the way when we use L3VPNs.
Recently I came across RFC 6368 which describes how iBGP can actually be used as a PE-CE protocol, in order to make the provider network more transparent from a BGP perspective. Usually there’s no problem running eBGP and 99% of networks seem to operate perfectly fine with it, however if the customer CE routers have a large BGP element behind them, the provider’s AS numbers and interactions with the BGP updates can in some cases cause problems.
Recently Cisco added support to run iBGP for PE-CE with the addition of a new command placed under the VRF – “neighbor <x.x.x.x> internal-vpn-client” in JUNOS the command is “independent-domain” which goes under the routing-options for the routing-instance.
For this configuration, consider the following basic topology:
CE-1 and CE-2 Continue reading
Kubernetes 1.2 can now handle 1,000 nodes and 30,000 pods.
Oracle is moving into the enterprise data center with a subscription-based cloud offering.
The threat of white box switches has cast a shadow over big network equipment vendors for years, as the combination of Moore’s Law and economies of scale provides merchant switch silicon an overwhelming price/performance advantage over proprietary platforms.
Both Microsoft and HPE are customers as well.