The Lippis Report

January 29th, 2012

Computer networking vendors have been increasing the speed and port density of their Ethernet switches while reducing power draw and price per port. But while Ethernet switching hardware marches on linearly, thanks to 10, 40 and 100GbE, networking software is taking a different historical path as the pace of compute and network technology evolution has diverged, with networking lagging. Highly virtualized server deployment has broken traditional networking approaches on multiple levels, for example. In response, the industry is now developing a “virtualized infrastructure” or “stack” to add network flexibility. To close the technology gap, Software-Defined Networking (SDN) is promoted as the new “organizing principle” to deliver network software and service value. While it will be, likely, years before SDN’s organizing principles take hold, I propose that these two industry activities are inexplicably linked and phased; here’s why…

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January 9th, 2012

WAN bandwidth, or the lack thereof, is the single largest contributor to poor application performance in branch offices resulting in reduced productivity and the inability of IT to implement their entire strategy. This is especially acute as applications are increasingly centralized in data centers and video traffic starts to dominate flows all of which put more pressure on the WAN. A new approach to wide area networking takes advantage of virtualization concepts. WAN virtualization promises to reduce WAN cost and increase performance. If your WAN utilizes T1 MPLS links at $300/month or higher and ADSL between $10-$15/ month, then you can benefit significantly from WAN virtualization as it offers 3 to 4 times the bandwidth at lower cost and in the process eliminates WAN design constraints limiting IT business leaders. Keith Morris of Talari Networks joins me to discuss WAN Virtualization. I have first-hand knowledge of how good this solution works; if you fit the above profile, then listen up.

December 20th, 2011

By Jim Metzler, Ashton Metzler & Associates

This white paper proposes a new approach to architecting and designing data center networks for current dynamic and highly virtualized data centers.

December 13th, 2011

The Inflobox plug-in module for VMware’s vCenter Orchestrator promises to bridge network and virtual IT team silos by enabling automated assignment of IP addresses to VMs. The Infloblox plug-in enables IP addresses to be automatically assigned to virtual machines in less than a minute and then constantly monitored and managed, which simplifies troubleshooting, accelerates time to value and offers greater flexibility for the virtual team. Steve Garrison, VP Marketing for Infoblox and I discuss the problems of networking in virtualized environments and how Infoblox’s vCenter plug-in solves them.

December 5th, 2011

By Zeus Kerravala, Senior Vice President and Distinguished Research Fellow

The enterprise data center has undergone several major transformations since the introduction of computing as a corporate resource. The computing platform has evolved from main frame computing, to client server, to Internet-based computing, and now we sit on the precipice of the next major data center transition—the evolution to a fully virtualized data center. Each transition saw the cost of computing driven down and the importance of the network elevated. Each phase allowed organizations to increase the efficiency of their data center operations and improve asset utilization, ultimately leading to a better experience for end-users. This white paper provides a perspective on the rise of network value as it acts as the backplane for the virtualized data center and provides design recommendations.

November 7th, 2011

By Avaya

This White Paper discusses the benefits and applicability of the IEEE 802.1aq Shortest Path Bridging (SPB) protocol, which is augmented with sophisticated Layer 3 routing capabilities. The use of SPB and the value to solve virtualization of today’s network connectivity in the enterprise campus as well as the data center are covered.

This document is intended for technically savvy network managers as well as network architects who are faced with:
• Reducing time to service requirements
• Less tolerance for network down time
• Network Virtualization requirements for Layer 2 (VLAN-extensions) and Layer 3 (VRF-extensions)
• Server Virtualization needs in data center deployments requiring a large set of Layer 2 connections (VLANs)
• Traffic separation requirements in campus deployments for security purposes as well as robustness considerations (i.e., contractors for maintenance reasons needing access to their equipment or guest access needs)
• Multi-tenant applications such as airports, governments or any other network with multiple discrete (legal) entities that require traffic separation

November 7th, 2011

Just as 10 Gigabit Ethernet (GbE) is going through widespread
deployment in the data center, the discussion has now shifted to even
higher speed interconnects—namely 40 GbE and 100 GbE
By IBM

In July 2006, the Institute of Electrical and Electronics Engineers (IEEE) Higher Speed Study Group was formed to look into the next evolutionary step after 10 Gigabit Ethernet (GbE). In the past, Ethernet speeds would increase by a factor of 10. However, the next generation jump from 10 GbE to 100 GbE has proven to be a technological challenge. Some within the IEEE group felt that 100 GbE made sense for communication service providers and other backbone network providers, but not as a next step for servers—it was simply more speed and expense than would be needed for the near future. While the IEEE initially planned to standardize only on 100 GbE as the next step after 10 GbE, server vendors initiated a push in early 2007 to include 40 GbE in the standard, with the rationale that the effort used to develop 40 GbE would be used for the development of 100 GbE.

In July 2007, the IEEE 802.3ba study group was named, and it is the first standard to include two different Ethernet speeds—the 40 Gbps rate for local server applications, and the 100 Gbps rate for internet backbone—to serve both market needs. In June 2010, the official 802.3ba standard was ratified, opening the field to higher performance in server systems and components, data centers, network storage and systems, high-performance computing (HPC) clusters, data centers, carriers, and the like. This paper provides perspective on the placement and use of 40 and 100GbE.

October 24th, 2011

Simplified and optimized service orchestration maximizes the return from a virtualized computing environment
By Avaya

This white paper discusses Avaya’s approach to Data center Networking from a fabric perspective. Virtualization within the data center is now taken for granted, with some declaring that ‘Cloud Computing’ will be the choice of most enterprises and that applications and information will become commodities. Experience has proved one thing; the data center of the future cannot be built on the technology of the past. General-purpose products, outmoded techniques, and legacy designs cannot be re-packaged as ‘data center-ready’. Ethernet is readily available, cost-effective, extensible, and – as the 40/100 Gigabit developments prove – scalable. Find out Avaya’s approach to data center networking fabric by downloading this white paper.

September 26th, 2011

By all counts, Cisco’s upgrade of the Catalyst 6K via its new Supervisor 2T, or Sup2T, is its most ambitious and thoughtful yet for the venerable platform. The Sup2T is a 2 Terabit (Tb) platform that triples the previous Sup720 performance. Thanks to the support of Virtual Switching System (VSS), the platform allows two 2 Tbps switches to combine into a single 4 Tbps virtual switch. The Sup2T is a major upgrade to the most widely-deployed switching platform in campus and data center networking in the industry. But while these performance numbers are impressive, it’s the new Cat6K’s network services and pricing that deliver most of the value. From a services’ point of view, the Cat6K stands alone.

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September 26th, 2011

By Arista Networks

VMWARE VXLAN is a new network technology developed by VMware that enables stateful VM mobility across traditional L3 routed boundaries. This enables more freedom and flexibility in matching workloads to computing power. By enabling a larger, and essentially flatter network while building on top of proven models for stable scaling of networks such as routing and equal-cost multipath forwarding, VXLAN enables any workload to be provisioned on any virtualized host, anywhere in the network that is IP reachable. No longer do routed topology decisions restrict workload mobility.

If you are a VMware and network administrator who is building virtualized networks with more than 250 VMs or want to stretch a virtual machine farm across two data centers or two or more routed domains with full workload portability, then you need to read this white paper.

September 26th, 2011

By Extreme Networks

Several technology inflection points are coming together that are fundamentally changing the way networks are architected, deployed and operated, both in the public and private cloud. From performance, to scale, to virtualization support and automation to simplified orchestration, the requirements are rapidly changing and driving new approaches to building data center networks. This white paper does an excellent job at articulating cloud-scale network architecture via an open fabric that accounts for all major industry trends.

September 26th, 2011

By IBM

Data centers are undergoing monumental paradigm shifts. As demand for greater processing continues to outstrip available floor space, rack space, power and air-conditioning, the market has turned to virtualization to use the resources available efficiently. Most networking switches are not aware of VMs. This creates security and availability issues for both server and network administrators as they try to exploit the value of virtualization and manage this new environment. IBM® System Networking offers VMready®, switches. Find out how these switches solve the most difficult VM mobility and visibility problems.

September 12th, 2011

Back in November of 2009, I wrote Lippis Report Research Note 136 titled “HP Plans to Acquire 3Com Accelerating a New IT Convergence Era.” In that Research Note, I wrote

“When 3Com is fully integrated into HP what kind of networking revenue and market share can HP gain? ProCurve + 3Com is approximately $2B of revenue now. With the existing product lines can HP generate $5B, $10B or more of network revenue over five years? Time will tell.”

Well after nearly two years, HP Networking or HPN’s North America (NA) layer 2/3 Ethernet switch market share by revenue is nearly the same, bouncing between 5% and 6.1%, according Dell’Oro, with HPN’s Q2CY11 NA switch revenue share being down to 6%. Considering HPN’s limited results after significant investments in sales, channels and marketing, including its “proof-of-concept” plus “A Catalyst for Change” Cisco Trade-in program, not to mention engineering investment, the question is can HP make it in networking? We attempt to answer that question in this Lippis Report Research Note.

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September 12th, 2011

By IBM

Use of Ethernet as a switching fabric provides servers with a single connection and can greatly reduce the amount of equipment required in the data center. Companies with storage networks are switching from Fiber Channel to Ethernet-based storage solutions that use 10GbE. This trend is accelerating now with lossless DCB or Data Center Bridging Ethernet products such as IBM BNT RackSwitch G8124. With the adoption of the new DCB Ethernet protocols, Ethernet switching fabric can offer the technical features and the economic value necessary to become the switching fabric of choice for data center networking, storage and clustering. Find out how by downloading this white paper.