Steel ORCA has eventual plans for Avaya's Fx architecture for SDN.
Ivan has posted a reaction to Ethan, which prompts me to… Okay, let’s start at the beginning. Ethan wrote a nice post on SD-WAN and the “shortest path we always wanted,” covering some of the positive and negative aspects of software defined WAN.
Ivan responded with this post, in which he says several interesting things, prompting some thoughts from yours truly…
Routing in SD-WAN environment is almost trivial…
Depends on what you mean when you say “routing…” If routing here means the discovery of the topology, and computing a best path through a topology, then controller based (centralized) “routing” is almost certainly more complex than distributed routing protocols. If routing here means, “take into consideration a wide swath of policies, including which link is most loaded right now, which link has the shortest queues, and lots of other things, and compute me a best path,” then a controller based centralized system is most likely going to be less complex. Take a gander through my last set of NANOG slides if you want to see where my thinking lies in this area — or read my new book on network complexity if you want a longer explanation.
The question is — Continue reading
The post Worth Reading: Currency and the Cloud appeared first on 'net work.
Price uncertainty in the public cloud has taken a serious turn for the worse.
The post Musing: Currency Fluctuations and Cloud Computing appeared first on EtherealMind.
Ethan Banks recently wrote a nice blog post detailing the benefits and drawbacks of traditional routing protocols and comparing them with their SD-WAN counterparts.
While I agree with everything he wrote, the comparison between the two isn’t exactly fair – it’s a bit like trying to cut the cheese with a chainsaw and complaining about the resulting waste.
Read more ...The GNS3 development team produced a major new release, version 1.0, in October 2014. Since then, they have been regularly updating GNS3 and, at the time I write this, the latest version of GNS3 is version 1.3.7.
The latest version of GNS3 cannot be installed using a package manager like Ubuntu Software Center or Synaptic because no packages have been created yet for GNS3 1.x. The Ubuntu repository and the GNS3 PPA only provide packages for old versions of GNS3. The latest version of the GNS3 package for Debian/Ubuntu is GNS3 0.8.7.
The GNS3 development team is working on packages for GNS3 1.x but, as of the time I post this, it is not clear when they will be available.
To install the latest version of GNS3 on an Ubuntu Linux system, install the dependencies, download the GNS3 source files, and compile the software. I provide the list of commands in this post.
We will use GNS3 to build a simulated network consisting of open-source routers, switches, and hosts so we only need to install the GNS3 GUI, the GNS3 Server, and VPCS. However, in the sections below, Continue reading
I was working with several peers in Asia over the last few years on big network build outs. As everyone should know, limited IPv4 space means you really need to engineer everything for IPv6 with IPv4 as the “extra” protocol. The real state of vendor IPv6 readiness was a shocker. It was rare to find […]
The post IPv6 “RFP Requirements” – What do you include? appeared first on Packet Pushers Podcast and was written by Barry Greene.
In this third entrant into the design & build series, Guilherme Goes & Jeff Carrell join Ethan Banks for a discussion of running IPv4 & IPv6 dual stack.
The post Show 244 – Design & Build #3 – Dual Stack IPv4 + IPv6 appeared first on Packet Pushers.
In this third entrant into the design & build series, Guilherme Goes & Jeff Carrell join Ethan Banks for a discussion of running IPv4 & IPv6 dual stack.
The post Show 244 – Design & Build #3 – Dual Stack IPv4 + IPv6 appeared first on Packet Pushers Podcast and was written by Ethan Banks.