Musing: 40GbE BiDir Optics Means Less Cable In The Data Centre

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Many people are noticing that part of the Cisco ACI announcement includes mention of 40GbE BiDi optics where a 40GbE SFP needs only two MMF fibre cores for 40GbE connectivity. It’s worth noting that all vendors will also ship BiDi optics in the near future. For example, Arista is promoting a single mode 40G BiDi […]

Musing: Cisco ACI Validates The Independent Network Operating System Model

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The Cisco Nexus 9000 supports two versions of network operating system on the device. You can buy some models of the Nexus 9000 family today that run NX-OS just like the NX6K, NX7K etc and late in 2014 “NX-OS Plus” will be available. Two operating systems for the same switch isn’t new for Cisco if you remember the switch […]

What Does Programmable Networking Mean ?

OpenFlow-rule-sample-20131007

In a recent discussion someone asked the relatively simple question “What does Programmable Networking even mean ?” and, after I stumbled around trying to explain, agreed to write something that attempted to explain what I see as the basic requirement that networking has not met. Here are some ideas just jotted down to open the discussion a bit wider.

Musing On the VMware “versus” Cisco Thing

The VMware versus Cisco thing is overstated. It’s easy to conflate issues with all the excitement. The reality is that many customers have Cisco networks and will use VMware. They want Cisco & VMware to be partners. Customer first is corporate policy at both of these companies therefore Cisco & VMware will be partners. VMware has a software defined […]

Musing: Predicting What Insieme Might Announce at Cisco Live

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Conceptually, I’m not big on predicting what specific companies will or will not do. That’s what analysts are supposed to do. But we have talked plenty about Insieme over the last year and I feel like taking some guesses at what might be announced at Cisco Live US next week in an areas I think I know something about. It could be fun or foolish but I’ll take the punt. What the heck.

Big Vendor Head Shuffles at the SDN Curling Rink

Curling is a sport that involves people tossing a rock down an ice rink and then using brooms to guide it’s path. That’s a pretty apt description for employer changes in the SDN/OpenFlow space in the last few months. David Ward was leading the SDN portfolio at Juniper. Rumour has it that John Chambers saw […]

Cisco Value in vCider is All Programmable Networking

Cisco recently bought vCider. vCider gives Cisco tools for cloud bursting and a proven network driver to deliver overlay networks. It’s a significant boost to their Programmable Networks strategy and definitely an SDN play.

The vCider technology was architecturally similar to Nicira by building tunnels overlays in a network and, in my view, many people are incorrectly misinterpreting this as the core value on the acquisition.

I would posit that there are two aspects to vCider that Cisco is likely to extract value from. 1 – Network driver in Linux. 2 – Cloud burst networking

Musing: The Dim Future of Cisco ACE & WAAS

Tony Bourke draws attention to the Barrons report that Cisco is scaling the back the ACE : Though even if it were true, it wouldn’t necessarily mean Cisco has given up on ACE. It could signal that Cisco is no longer interested in selling the ACE30 service module, preferring instead the ACE 4710 appliance and/or gearing up […]