GoBGP – A Control Plane Evolving Software Networking

[fancy_header3 textColor=”#25b6eb”]GoBGP – A Control Plane Evolving Software Networking[/fancy_header3] If I have talked to you over the past year or two about networking, odds are I have mentioned a project to you called GoBGP. If we have spoken a lot, you are probably sick of me talking to you about GoBGP 🙂 There is a… Continue reading GoBGP – A Control Plane Evolving Software Networking

Time to Ditch the Definition of SDN

[fancy_header3 textColor=”#25b6eb”]Time to Ditch the Definition of SDN[/fancy_header3] While at a stoplight looking at the random news feeds on Linkedin I ran across a post of a recent blog post by the ONF and the subsequent conversation where my friend Ivan Pepenlnjak commented. So I threw in my two cents and quickly regretted it because… Continue reading Time to Ditch the Definition of SDN

Setting Up Overlays on Open vSwitch

[fancy_header3 variation=”orange”] Setting Up Overlays on Open vSwitch [/fancy_header3] Most “SDN” solutions involve overlays or at the least HW overlay gateways/ToR of some type. Some sell overlays terminating in hardware, others sell overlays terminating in the server. The encaps include standards like GRE, VXLAN and soon to be Geneve (Generic Network Virtualization Encapsulation: basically the… Continue reading Setting Up Overlays on Open vSwitch

Install Open vSwitch v2 from Source on Red Hat Fedora 19

[fancy_header3 variation=”orange”]Install Open vSwitch v2 on Red Hat Fedora 19[/fancy_header3] This is a walk through for installing Open vSwitch v2.0+ on RedHat Fedora 19 from source. If you want to build Open vSwitch from RPM binaries please see this post There are some new OVS tables included in the latest builds that include some neat… Continue reading Install Open vSwitch v2 from Source on Red Hat Fedora 19

Installing Mininet, OpenDaylight and Open vSwitch

[fancy_header3 variation=”orange”]Installing Mininet, OpenDaylight and Open vSwitch[/fancy_header3] The easiest way to get started with a quick SDN lab image is using the Mininet image that is now managed by the ONLAB which is part of the ONRC. They do a nice job keeping the images maintained. Ideally the will incorporate ODL into the image soon… Continue reading Installing Mininet, OpenDaylight and Open vSwitch

Eliminating VLANs and Fragility in the Underlay with Network Virtualization

[fancy_header3 variation=”orange”]Eliminating VLANs and Fragility in the Underlay with Network Virtualization[/fancy_header3] This post is not intended to participate in the vendor Overlay vs. Underlay vs. Open OS vs. closed NOS but rather a network centric look at some things I am considering. The simple answer is routing scales and bridging doesn’t in my experience. As… Continue reading Eliminating VLANs and Fragility in the Underlay with Network Virtualization

Getting Started With OVSDB

[fancy_header3 variation=”orange”]Getting Started With OVSDB[/fancy_header3] OVSDB (Open vSwtich Database) is a management protocol used to manipulate the configuration of Open vSwitches and more recently vendors have begun implementing OVSDB in their Ethernet switches firmware. Some of those vendor data plane implementations are already running OVS under the hood so the implementation should be relatively painless.… Continue reading Getting Started With OVSDB

The OpenFlow Overlay

[fancy_header3 variation=”orange”]The OpenFlow Overlay[/fancy_header3] Integrating SDN beyond the data center is still the wild west. The needs are very similar, traffic classification and policy instantiation at the edge. Data center solutions then abstract the underlying network with tunneling/encapsulation mechanisms to achieve IP mobility among other things. Outside the data center, some may care about choosing… Continue reading The OpenFlow Overlay