White-box switching has grown rapidly to offer a flexible alternative for data center networks.
From the moment Cisco and VMware announced VXLAN some networking engineers complained that they'd lose visibility into the end-to-end path. It took a long while, but finally the troubleshooting tools started appearing in VXLAN environment: NVO3 working group defined Fault Managemnet framework for overlay networks and Cisco implemented at least parts of it in recent Nexus OS releases.
You'll find more details in Software Gone Wild Episode 69 recorded with Lukas Krattiger in November 2016 (you can also watch VXLAN Technical Deep Dive webinar to learn more about VXLAN).
Although this post is from May 2016, Petr Lapukhov at Facebook outlines an method to replace routing protocols with a message bus to enable real network applications.
I’m doubtful that wider networking market would adopt something that doesn’t have BGP in the solution but Facebook has the resources to develop something like this and prove that it works. That could change perceptions. In any case, thought provoking reading.
Introducing Open/R — a new modular routing platform | Engineering Blog | Facebook Code | Facebook: “The Open/R software enables rapid prototyping and deployment of new applications to the network much more frequently than the industry’s standard development process. To create an interoperable standard, the industry’s process is often lengthy due to code being built independently by multiple vendors and then slowly deployed to their customer networks. Furthermore, every vendor has to accommodate for the demands of numerous customers — complicating the development process and requiring features that are not always useful universally.”
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Increasingly coming to the view that BGP-EVPN is a big deal. Neither vendors or customers can imagine their networks without a 30 year old routing protocol so this is the half-pregnant, half-arsed solution that seems likely to gain widespread adoption.
You can mangle BGP configuration with an application and call it SDN. Heck, IXPs have been doing that for a decade so its not new.
Welcome to networking where “its not new” is the byline for SDN.
Coming soon with Cumulus Linux 3.2: EVPN – Cumulus Networks Blog: “Can you summarize the benefits of deploying EVPN?
Cumulus EVPN provides many benefits to a data center, including:
Controller-less VXLAN: No controller is needed with EVPN, as it enables VTEP peer discovery through BGP.
Scale and Robustness: EVPN uses the standard BGP routing protocol for the control plane. BGP is a mature well-known protocol that powers the internet. For data centers that already run BGP, this involves just adding another address-family.
Fast convergence/mobility: The BGP EVPN address family includes features to track host moves across the datacenter, allowing for very fast convergence.
Multi-vendor interoperable: Since EVPN is a standard, it will be interoperable with other vendors that adhere to the Continue reading
https: //www.youtube.com/watch?v=poIBwW1gI3E
Arista, NetBeez, Viptela, Silver Peak, Velocloud, ETSI, Extreme Networks are included in today’s press release round up.
Packet Pushers Youtube Channel – https://www.youtube.com/channel/UC7vAUu1TQAwzuq8wajJw4kA
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