Cisco Blogs


Cisco Blog > Internet of Everything

Moving to IPv6: Rebuilding the Heart of the Internet Without Missing a Beat

Within the coming decade, Internet Protocol version 6 (IPv6) will be key to enabling 50 billion connections among people, processes, data, and things in the Internet of Everything (IoE)But how we get there from here is not a simple matter.

I’m very pleased to invite Mark Townsley, Cisco Fellow and recognized industry expert on IP, to discuss this important transition in the second of our three-part blog series on IPv6. The first blog in Mark’s series was “Demystifying IPv6”.

townsley

Three years ago, I organized a conference in Paris where I thought it would be fascinating to bring together the original designers of IPv6 alongside the engineers who were finally deploying it at scale more than a decade later. During this discussion, Steve Deering, one of the “fathers” of IPv6 in the 1990s, was asked one of the most common questions about IPv6: Why wasn’t it designed for backward compatibility with IPv4? After all, wouldn’t it be easier to make the transition if the two versions could transparently coexist? Steve answered that the problem is not that IPv6 wasn’t designed to be backward-compatible—the real problem is that IPv4 wasn’t designed to be forward-compatible.

Steve was making the point that IPv4 was designed with a fixed address space. Given the number of computers connected to the Arpanet throughout the 1970s, this fixed-length address field seemed to be sufficient—at least for that version of IP. IP had been replaced before, and it seemed perfectly reasonable at the time that it might be replaced again. Read More »

Tags: , , , , , , , , , , , ,

Cisco Live USA 2013: Recap from a Network Security Engineer

July 8, 2013 at 7:14 am PST

Having just returned home to New Jersey from Cisco Live US in Orlando, Florida, I thought I’d share my experiences as a Network Security Engineer both attending and presenting at this year’s conference.

There were approximately 20,000 attendees at this year’s conference, which I believe set a new Cisco Live attendance record! Considering the huge size of the conference, which rivals game day attendance at some small market Major League Baseball teams, I was amazed at the efficiency and organization of the conference—from the session logistics to the World of Solutions “happy hours” and the Customer Appreciation Event held at Universal Studios!

While listening to the various keynote speeches, most notably those from John ChambersPadmasree WarriorRob Lloyd, and Edzard Overbeek, it’s clear that Security, is “Top of Mind” for the Cisco Leadership Team.

Out of the roughly 625 sessions, there were approximately 100 sessions and labs focused on security, including a few below, which were presented by some of my fantastic and extremely bright peers within the Security organization. Sessions and labs included relevant topics such as network threat defenseIPv6threat mitigation, and intrusion prevent and signature development.http://csio.cisco.com/blog/wp-includes/js/tinymce/plugins/wordpress/img/trans.gif Read More »

Tags: , , , , , , ,

Route Redistribution – A thing of the past?

July 2, 2013 at 11:21 am PST

This week at CiscoLive Orlando, Cisco made two announcements around Enterprise Routing -- Open EIGRP and EIGRP OTP. Originally announced at CiscoLive London, EIGRP has been opened to the community as an IETF Informational Draft “Open EIGRP”, Open EIGRP  provides vendors with technical information on EIGRP and the accumulation of 20 years of development and enhancements. With the publishing of this IETF Draft, vendors can now integrate EIGRP into their appliances and interop with Cisco.

On Tuesday, Cisco also announced a new innovation in Enterprise Routing; “EIGRP Over the Top” (or simply OTP).

EIGRP OTP

Read More »

Tags: , , , , , , , , , , , ,

Simplifying Multi-Provider WAN Designs

This week, at Cisco Live Orlando, we are introducing a brand new EIGRP feature called Over-the-Top (OTP). EIGRP OTP is focused on simplifying the deployment of branch networks utilizing an EIGRP end-to-end solution over public and private networks. This simplicity is further enhanced with EIGRP use of Over-the-Top (OTP) to support multiple service provider IP networks.

Connecting sites over a WAN cloud can be complex, especially when supporting thousands of branch locations, multiple service providers, and feature requirements like encryption. Aside from the configuration challenges, operationally, customers need to filter routes while avoiding routing loops during redistribution, which makes it harder to troubleshoot the network.

The EIGRP Over-the-Top (OTP) solution simplifies multi-provider IP WAN network designs. It simplifies the interface with the WAN providers and facilitates an end-to-end EIGRP network, which is easier to troubleshoot.

How simple is EIGRP OTP to deploy? Read More »

Tags: , , , , , , , ,

Hitchhiker’s Guide for Service Providers at Cisco Live Orlando

Amrit Hanspal Formal photoWritten by Amrit Hanspal, Sr. Product Manager, Service Provider Segment Lead, Network OS Tech Group

Cisco Live at Orlando in 2013 offers a host of opportunities if you are a service provider or a large enterprise that offers services to internal groups. Watch out for the following five key areas and the respective speaking sessions when it comes to software capabilities of the Routing & Switching platforms—(1) IPv6, (2) SDN, (3) Core IP & Optical, (4) Ethernet Access & Aggregation and (5) IP Routing.

IPv6

June 2012 officially marked the IPv6 Internet with the World IPv6 Launch led by the Internet Society. Within the first six months, IPv6 traffic broke the 1% threshold and established the fact that IPv6 had moved from an experiment to mainstream phase with US traffic approaching close to 3%. Join us for a discussion on where IPv6 is headed (Session ID: PSOSPG-1330) — new opportunities for IPv6 with Internet of Everything. We will be delighted to share our experiences deploying IPv6 (Session ID: PNLCRS-2303) as our IPv6 gurus highlight deployment best practices and real-world challenges. For those of you in Networking, we got you covered with the Troubleshooting IPv6 session (Session ID: BRKRST-2304).

See full list at http://www.slideshare.net/getyourbuildon/ipv6-at-cisco-live-orlando

SDN--Software Defined Networking Read More »

Tags: , , , , , , , , ,