My previous post examined how a regional Provider Independent (PI) prefix is propagated across the Internet. This post discusses the second aspect of the issue: how does Provider Assigned/Aggregateable (PA) space propagate across the Internet? Read More »
In a previous blog series about interfacing with your ISP, I mentioned tools that Internet Service Providers (ISPs) have, such as looking glasses and route servers, that can be used to verify their policies. In this blog post, I want to examine some of those tools, but primarily I want to show how prefixes are propagating across the Internet.
The question of prefix propagation comes up often when discussing how to develop an IPv6 address plan. What happens if an organization gets Provider Independent (PI) space from a registry and then tries to advertise that prefix, or a smaller portion of that prefix, in a different region? Will ISPs in that region filter the non-regional prefix? Will they let the aggregate pass, but not the more specific prefixes? Read More »
We’ve talked about how the Internet is forecast to carry a million minutes of video every second in the next few years, and how Cisco’s Elastic Core solution will help the core infrastructure carry that load. But a scalable and flexible core is only one piece of the puzzle that network operators need. Who else is helping to make a video-centric future a reality?
One place to look is a solution that’s been developed by Miami, FL based NxtGn and Virginia-based Telarix. We wrote about NxtGn’s affiliate Next Communications last year, they’ve been successful in wholesale voice communications, in part due to in-house technology paired with an off-the-shelf Cisco ASR 1000 router performing Session Border Control functionality. Packing a softswitch and an SBC that can handle 16K voice or HD video calls in half a rack has enabled them to minimize their costs in a relatively low-margin market. Telarix isn’t as well known outside of the carrier market – they specialize in what is known as “interconnect business optimization” – basically the back-office components to handle billing, auditing, and traffic routing between carriers. While the concept of billing and auditing might make your eyes glaze over, if carriers can’t figure out how to bill for services rendered you can imagine they view that as a really bad thing.
What NxtGn and Telarix have Read More »
Cisco’s Smart Grid Team is excited to support the Wireless Smart Utility Network Alliance (Wi-SUN). Lionel Chocron, vice president and general manager of Cisco’s Connected Energy Networks Business, will be representing Cisco on the Wi-Sun board of directors. Cisco will be joining at the promoter level and the entire team is looking forward to helping drive the development of interoperable Field Area Networks (FAN) for utility applications.
Field Area Networks today are often closed, proprietary systems and generally just supporting a single service. As a result, they do not support interoperability across multiple vendors or take advantage of the decades of networking expertise available within the Internet Protocol suite (IP).
By supporting Wi-SUN, Cisco will help drive the technical definition for standards based, multi service, secure, and scalable Field Area Networks. The Field Area Networks will support important utility use cases including Automatic Metering Infrastructure, Outage Management, and Distribution Automation.
The Wi-SUN defined Field Area Network will be based upon the IP protocol suite, with the initial release based on IEEE 802.15.4g PHY and 802.15.4e MAC wireless mesh technologies. Usage of the IP protocol suite will provide many benefits, including the ability to support additional PHY/MAC technologies in the future.
Our team will further assist in the development of certification testing and “plug-fests” for regions around the world. This will ensure international interoperability between multiple vendors implementing the Wi-SUN defined Field Area Network.
“We are very pleased to be joining the Wi-SUN alliance, and look forward to collaborating with our industry partners to bring interoperable, standards based utility Field Area Networks to reality,” said Lionel Chocron, vice president and general manager of Cisco’s Connected Energy Networks Business Unit.
Other companies who are promoters of the Wi-Sun alliance include:
Further details about the Wi-SUN Alliance can be found here
Cisco Connected Grid products and solution information is available here
Recent Cisco news highlights two prominent service providers – Deutsche Telekom and Telefonica – who have chosen Cisco IP Next-Generation Network solutions.
Key elements include all-IPv6 streamlined routing architecture; fully converged IP and optical layers with 100G coherent technology; integrated cloud service centers, enabling virtualized network services and applications for rapid service innovation; programmatic interfaces aligned with the software-defined networking architecture for real-time automation and OSS; and customer self-service management capabilities.
Cisco has delivered the following technologies in this landmark deployment: