”Each success only buys an admission ticket to a more difficult problem.”
-- Henry Kissinger
Following the early successes with network programmability, the natural question that arises is “where do we go form here?” Certainly some good things have been accomplished, but in many ways the real work is just beginning. David Ward just posted some musings on where we go next with programmatic interfaces for the network--its a good read and I encourage you to check it out.
Nothing sits around and gets stale for long at Cisco (outside the break rooms anyway). On the heels of shipping our Nexus 1000V 1.5.2 release earlier this week (which you can download from here), we are ramping up to show the upcoming generation of the virtual switch next week at VMworld in San Francisco. This new major release 2.1 will be going into beta in October, and will represent a quantum leap in ease of deployment and management, as well as greater security for cloud environments.
vCenter Plug-in – Provides a holistic view of the virtual network to the server administrator from within VMware vCenter. A Nexus 1000V dashboard in vCenter shows the virtual supervisor module (VSM) and virtual ethernet module (VEM) details, such as VSM health status, license information, PNIC information, connected VM’s, et al.
Support for Cisco TrustSec -- Extends Cisco TrustSec security solutions for network-based segmentation of users and physical workloads to virtual workloads, leveraging Security Group Tags (SGT) for defining security segments. Data center segmentation and consistent security policy enforcement can now be implemented across physical and virtual workloads.
Cross Data Center High-availability – Supports split Active and Standby Nexus 1000V Virtual Supervisor Modules (VSMs) across two data centers to implement cross-DC clusters and VM mobility while ensuring high availability. In addition, VSM’s in the data center can support VEM’s at remote branch offices. Read More »
The lack of programmability in existing networking hardware is certainly a problem, but VMware’s acquisition of Nicira does not mean that Cisco and its ilk will be marginalized… It does mean the role and management of the physical network is changing, and I think Cisco is further ahead than most of its competitors in creating a vision for the next phase of networking.
My take here was that the VMware-Nicira acquisition did not portend a strategic break with Cisco, and while there are some obvious overlaps in our product lines, there are still a number of areas of collaboration, cooperation and interoperability. The virtual network infrastructure is just one piece of a larger software stack and the differentiation will likely be decided in the orchestration, management and applications built on top of the newly programmable infrastructures sometime down the road. Read More »
At Cisco live last month I spent several days talking to a lot of customers about all the new enhancements to our Nexus 1000V portfolio, especially the programmable virtual network overlays that are part of the Cisco ONE framework for SDN/network programmability. While the Nexus 1000V-based virtual networks are really gaining traction (6,000+ Nexus 1000V virtual switch customers to date), I still found a lot of folks weren’t all that familiar with the concept of VXLAN, and why they are so important to building scalable cloud networks and multi-tenant data centers.
Well, not to fear, VXLAN MAN is here! Well, not really, but we have just released a great new fundamentals video on VXLAN from the creative geniuses at Techwise TV (Thanks to @JimmyRay_Purser and @robbboyd!). We’ve gotten great reviews on this so far, and I know the guys really had a fun time in creating this one.
ESG points out that virtual network overlays are important to building out multi-tenant environments like private and hybrid clouds, as well as overcoming scalability issues in those environments that have traditionally been based on VLANs. As ESG notes, and as Cisco mentioned in it’s ONE announcement, programmability of the virtual networks is what really separates them from classic overlays based on MPLS or GRE tunnels. The Nexus 1000V will achieve this programmability capability by SDN API’s such as OpenStack on top of the Nexus 1000V virtual supervisor module.