A little while ago I wrote about the differences between routing and
switching, or probably more the difference between ethernet and IP
forwarding. The focus of that article was very much on the differences
between the two from a forwarding hardware perspective. This article last
week from Brent Salisbury triggered a bunch of additional thoughts around
scale and size.
As some sense of disclosure, in my previous job at Nortel/Avaya I was part of
the team that pushed Shortest Path Bridging (SPB) spearheaded by Paul
Unbehagen. I am a fan of SPB, I believe it is an extremely well thought out
mechanism to provide network based virtualized ethernet networks with many
real life practical roots in the learnings from MPLS and early more static
solutions like PBB and PBT.
One of the questions I have been asked many times with respect to SPB is:
"how big can I scale my SPB m... (more)
Last week was a busy week for us at Plexxi, as you could see from last
week’s Plexxi Pulse. Now that the networking community has had a few
days to digest after a whirlwind week, they have responded with some
fantastic articles, videos and photos, which we’ve included below.
Highlights include articles on Plexxi’s DSE from Ivan Pepelnjak and Tom
Hollingsworth. There are also a few #SocksofPlexxi cameos, and photos of our
Lego prize giveaway from NFD6. We anticipate much more to come in the next
few weeks, so stay tuned! In the meantime, enjoy the Tweets below.
The most challenging part of managing a complex IT infrastructure is not in
the silos but the boundaries between those silos. Tools, processes, and even
people have to be particularly flexible at the points where workflows
intersect. And once these intersection points are codified (through tooling
infrastructure, specific procedures, or training), they are exceedingly
difficult to change.
The truth is that in most data centers today, orchestrating workflows across
disparate IT systems is more dream than reality. For far too many people,
automation means writing a Perl script tha... (more)
When it comes to API frameworks, there seems to be a Field-of-Dreams-esque
view that If you build it, they will come. And as our industry dives
headfirst into SDN waters, there will be people who advocate the
proliferation of developer programs under the premise that networking needs
an App Store. The question these people need to be asking is whether an SDN
App Store is actually a strategically viable end state.
Before I get into whether the networking industry can support an app store, I
need to outline the strategy behind these developer programs. All developer
programs are e... (more)
Sports fan strategists like to throw around the famous Wayne Gretzky quote: I
skate to where the puck is going to be, not where it has been. The corporate
implications of the quote are self-evident: plot your strategic course to
where you think the market is going. Setting your sights based primarily on
the current State of the Union is a surefire way to get passed in high tech.
So where is the puck going to be?
The current dialogue is all about software-defined everything. A couple of
years ago, it was all about OpenFlow. This year, the conversation broadened
somewhat to include... (more)