In other words, transitioning more traffic to IP doesn’t mean building entirely new infrastructure. Rather, it means augmenting one of the several distribution mechanisms operators already employ, to carry video.
Cisco is a big part of the traditional and IP-based equipment foundation used by cable providers, and we have been there supporting our cable partners through analog television, standard definition digital television, and HDTV. IP is but another chapter in the video timeline.
John Chapman, Cisco Fellow and Chief Architect, discusses the viability of DOCSIS 3.0 versus all-fiber implementations, in this Part 2 interview from the floor of The Cable Show in Los Angeles.
What’s a better roadmap: DOCSIS or all-fiber? It’s a complicated debate. Our view is that the wide-ranging cable modem specification known as DOCSIS will continue to be foundational to advanced IP services.
Ultimately, the progression goes like this: Today’s DOCSIS-based cable modems are capable of 10′s of megabits per second (Mbps), in residential broadband services. DOCSIS 3.0 expands that range to hundreds of Mbps. Laboratory experimentation at Cisco suggests that a Gigabit per second DOCSIS offering is entirely feasible.
As multichannel video providers beeline toward an IP-based service infrastructure, they seek capacity, efficiency and QoE, notes John Chapman, Cisco Fellow and Chief Architect, who was interviewed on the floor of The Cable Show, in Los Angeles.
If you’re thinking about how multichannel video shifts to IP transport, from MPEG transport, you’re probably already well-versed in the language of DOCSIS 3.0, and its channel bonding features.
Bonding multiple 6 MHz channels together is the foundation for a multicast, IP version of today’s linear broadcast offerings. In doing so, cable operators dramatically expand their shelf space for multi-screen, multi-format video offerings.
Likewise, by converging video services into one, IP-based pipe, cable operators save in operational and capital expense. And, over time, as more MPEG-based video streams shift into the IP domain, their bandwidth can be recovered and applied to other applications.
Since my last posting on Real Time Services, I have been thinking about the Internet being at an inflection point, specifically, the impact to sustainable architecture development due to content distribution that is relevant for consumers. Recall, from the April blog post that characterizing “real time” could be in the form of video, telepresence, voice, on-line games as examples, where mitigating latency is a must e.g. between clients-servers; agreement on what the optimal communications protocol should be and so on in order to deliver these services as expected by the consumer.
No doubt that managing the user experience is pivotal for customer retention.
As we shift the discussion to cloud computing, what are the implications to “cloud management,” to SLA management and so on? Let’s not forget the implications to security.
Hi again! Following last week’s post I thought it was worth a quick update. We actively follow cloud commentators on the web/twitter/social net and were pleased to see Cisco being mentioned in the cloud computing space.
TechTarget published its list of Top Cloud Computing Leaders last week -- and Cisco’s own Chris Hoff was mentioned in this list along with the likes of Larry Ellison, Marc Benioff, Vivek Kundra and others. Chris is focused on our cloud strategy, works on the CloudAudit project and also writes on his blog and tweets prolifically on cloud computing related issues.
The list also mentions AT&T’s Joe Weinman. Joe is also a prolific blogger and has done much to demonstrate how cloud computing creates value on his Cloudonomics blog.