Technologies used to virtualize cloud networks are evolving quickly. Many times it is non-trivial to sort out the different technologies and understand merits and demerits of specific approaches. This write-up…
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Why BGP/MPLS VPN (aka 2547 VPNs) control plane? To answer this question, let me start by quoting from the blog posted by Pedro Marques: “When we started working on network…
I worked on the design and implementation of AT&T IP VPN services for several years. AT&T was the first Service Provider which introduced MPLS/BGP VPN technology in its WAN network…
1 Introduction This is a small introduction to service VM’s. On what the minimum requirements are to build them, and how to test them in a Fabric. Some people use…
The OpenContrail solution uses overlays for network virtualization. Packets between tenant virtual machines are encapsulated in a tunnel on the IP fabric connecting the compute servers in the network. A…
This article is intended as simple tutorial on how to add a configuration option to the OpenContrail control-node that controls the behavior of the BGP implementation. The configuration node (the…
I had the privilege to be part of the team that built Juniper’s EX switches; it was a fun experience as building something from scratch typically is. One episode I…
Why Open Source? Open source has made significant strides in the enterprise and service provider market Enterprises see open source as leading innovation and quality rather than just being a…
