The Lippis Report

August 24th, 2010

It hasn’t been since the mid 1990s that the networking industry was focused on multi-protocol integration or convergence. But the industry is gearing up for a major innovation and competitive cycle fueled by the multi-billion dollar addressable market for data center network fabrics. Over the last eighteen months, every major Ethernet infrastructure provider has been talking about two and three tier network fabrics for high-end data centers.

Companies such as Cisco, Arista Networks, HP/3Com, Force10, Voltaire, Extreme, Brocade, Juniper et al have announced network fabrics for data centers with five thousand and more servers with and without storage enablement. Juniper talks of a one-tier fabric through their Project Stratus work with IBM to be available some time in the future. Brocade recently introduced its Brocade One, which is a converged data center fabric. Extreme Networks launched its DirectAttachTM that eliminates virtual plus blade switch layers. HP has FlexFabric, a virtualized fabric for the data center. Cisco launched its FabricPath Switching System or FSS for the Nexus 7000 that enables massive scale of a two-tier fabric.

In this Lippis Report Research Note, we review the architectural attributes of two tier network fabrics.

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August 10th, 2010

By Cisco Systems

Traditional security techniques are unable to respond to threats that can arise from anywhere. To protect today’s borderless networks, IT managers must adapt by implementing faster, smarter security measures that monitor the constantly changing global landscape. This white paper, written for IT managers and executives, examines the security risks and needs of borderless networks, details a systematic plan of action, and describes how Cisco can help implement threat defenses that will serve you today and for years to come.

Find out how by downloading this white paper

July 27th, 2010

In Lippis Report 151: A Two or Three Tier High-End Data Center Ethernet Fabric Architecture? we detailed the new two tier data center Ethernet fabric that is becoming conventional wisdom amongst business leaders of high end data centers and cloud computing service providers. The networking industry is headed for a major innovation and competitive cycle fueled by a multi-billion dollar addressable market for data center network fabrics. Over the last eighteen months, every major Ethernet infrastructure provider has announced or taken a position on two tier network fabrics for high-end data centers. Companies such as Cisco, Arista Networks, Force10, Voltaire, HP/3Com, Juniper, Extreme, Brocade, BLADE Network Technology, et al have announced network fabrics for data centers with two thousand and more servers that either support storage enablement or not. In this Lippis Report Research Note, we review why it is Ethernet that will be the network fabric of high performance computing or HPC and cloud computing deployments.

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July 27th, 2010

By Cisco Systems

Spanning-Tree Protocol (STP) can be easily compromised by eavesdropping in a switched corporate environment, but this vulnerability can be mitigated using L2 security features that are available on the Cisco® Catalyst® 6500. STP Man in The Middle (MiTM) attack compromises the STP “Root Bridge” election process and allows a hacker to use their PC to masquerade as a “Root Bridge,” thus controlling the flow of L2 traffic. To understand the attack, the reader must have a basic understanding of the “Root Bridge” Election process and the initial STP operations that build the loop free topology. This paper provides an overview of the STP Root Bridge Election Process, STP MiTM Attack Guide and Mitigation Techniques for STP attacks.

Find out how by downloading this white paper

July 13th, 2010

In the Lippis Report Research Note 150, we discussed the new industry group called Unified Communications Interoperability Forum or UNIF and compared it to other industry consortium charted to deliver interoperable solutions. While interoperability is sorely needed in the UC industry, it looks like Microsoft killed its changes of broad industry success before it started. What I hear from both UCIF members and non-members is that UCIF is controlled by Microsoft, and thus, lacks a large cross section of industry players as well as major UC providers. With its current structure, UCIF will make limited headway on its charter. In this Lippis Report Research Note, we review UCIF and its’ opportunities.
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July 13th, 2010

By Cisco Systems

The Cisco® Unified Communications Manager Session Management Edition integrates multivendor private branch exchanges into one network and centralizes applications. The Cisco Unified Border Element works with it to route traffic on secure cost-saving Session Initiation Protocol trunks. Together they help workers around the world achieve higher productivity through high-performance collaboration tools.

Find out how by downloading this white paper

July 1st, 2010

By Nick Lippis, the Lippis Report

A number of independent trends are driving a new age of massively scalable data centers. One of these trends include a new IT delivery model based upon cloud computing, where large hosting facilities provide a range of IT services to corporations and governments. Further, high performance computing (HPC) facilities built via server clusters on the order of thousands to tens of thousands of servers and more has ushered in new favorable economics, thanks to its use of x86 commodity hardware. The growth of public hosting and HPC facilities will only continue as efficient data center economics point to a fewer number of highly dense sites. It is this data center market segment, where the number of servers per facility is greater than 5,000, that we focus this white paper from a perspective of fabric, connecting servers and storage to internet/intranet via high performance Ethernet networking. For IT architects and designers of high-end data centers, this is the most important network design paper you will read this year.

Download this white paper now

July 1st, 2010

Massively scalable data centers have unique requirements such as low latency, high performance, non-stop operation, simplicity of design, workload mobility and storage transport support. To address these requirements Cisco launched FabricPath, which is a scalable multi-link and multipath technology allowing 2 to 48 Nexus 7000s to be configured in a large, non-blocking Ethernet switch fabric. This fabric, called a FabricPath Switching System or FSS, eliminates oversubscription and creates a two-tier fabric. In addition to FabricPath, Cisco launched its’ F-Series 10GbE module for the Nexus 7000, which offers 32 ports of auto-sensing 1/10GbE targeted at server access, aggregation and FCoE implementations solutions. Craig Griffin, Senior Director of Product Management for Cisco’s Nexus 7000 discusses new Ethernet innovations for the age of massively scalable data centers.

A white paper on the topic is available here:

June 30th, 2010

It hasn’t been since the mid 1990s that the networking industry was focused on multi-protocol integration or convergence. The industry is gearing up for a major innovation and competitive cycle fueled by the multi-billion dollar addressable market for data center network fabrics. Over the last eighteen months, every major Ethernet infrastructure provider has been talking about two and three tier network fabrics for high-end data centers. Companies such as Cisco, Arista Networks, HP/3Com, Force10, Voltaire, Extreme, Brocade, Juniper et al have announced network fabrics for data centers with five thousand and more servers with and without storage enablement. Juniper talks of a one-tier fabric through their Project Stratus work with IBM to be available some time in the future. Brocade recently introduced its’ Brocade One, which is a converged data center fabric. Cisco just launched its’ FabricPath Switching System or FSS for the Nexus 7000 that enables massive scale of a two-tier fabric. In this Lippis Report Research Note, we review the architectural attributes of two and three tier network fabrics and review FSS and its accompanying F-Series 10GbE module.

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June 30th, 2010

By Cisco Systems

We work, live, play, and learn in a world that has no boundaries and knows no borders. We expect to connect to anyone, anywhere, using any device, to any resource—securely, reliably, transparently. That is the promise of borderless networks. To fully deliver on this promise, Cisco is advancing along three critical fronts: workplace transformation, technology leadership, and operational excellence.

June 14th, 2010

In mid May of this year HP, Juniper Networks, Microsoft, Logitech / LifeSize and Polycom established a forum to develop a set of interoperability test methodologies and certification programs along with specifications and guidelines that enable mixed vendor Unified Communications UC solutions to work with each other. In short, the UC Interoperability Forum or UCIF is trying to define what it means for multi-vendor UC implementations to interoperate. Since its establishment, membership has grown by thirteen vendors, but blaringly obvious is the omission of Cisco, Avaya, Mitel, ShoreTel and other major UC providers. This begs the question of motivation. Is the UCIF interested in interoperability or changing the market landscape to gain advantage on the established leaders? In this Lippis Report Research Note we explore this question.

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June 14th, 2010

By Cisco Systems

This paper provides a brief introduction to common security threats on IPv6 campus access networks and will explain the value of using First Hop Security (FHS) technology in mitigating these threats. An overview of the operational principle of FHS is provided together with some examples on how to enable FHS on Catalyst® 6500, 4500, and 3750 Series Switches. The target audience for this paper are network architects and network operation engineers.

Find out about FHS by downloading this Cisco whitepaper.

May 31st, 2010

In Lippis Report 148 we reviewed the major drivers and trends that are propelling the high-end data center Ethernet switch market to well over a $1B annual run rate. In this Lippis Report Research Note, we review the major suppliers of these switches. We review Cisco, Arista Networks Force10 Networks, BLADE Network Technologies, HP/3Com/H3C, Voltaire, Avaya, Brocade, and Juniper and identify their unique positions and offerings to participants in the burgeoning market. Our focus is the high-end, high density 10GbE switches that are enabling virtualized cloud computing data centers thanks to Terabits per second of back plane switching capacity, billions of packets per second of layer 2/3 forwarding, hundreds of 10GbE port connectivity per chassis, a new two-tier architecture, microsecond level latency, low power consumption, non-stop operation and software hooks that eliminate network barriers to large scale server virtualization. The engineering in these switches should be celebrated, as they represent the state-of-the-art in computer and network design. In short, they represent the fundamental building block of a new generation of IT delivery based upon cloud computing and virtualization. This Research Note is a must read for any IT executive designing a data center.

After finishing this Research Note, it became evident that this market needs a set of industry neural 10GbE switch test to independently verify vendor claims. We hope to make such a contribution this Fall.
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May 31st, 2010

By Cisco Systems

Typically, data centers have been built over time, with servers added as they are needed. This process has resulted in server sprawl, increasing power and cooling costs, and created challenges in management and security. To meet their requirements, organizations are employing virtualization on a broad scale on servers centralized in the data center. However, server platform and virtualization address only one part of the problem for the global organization. Not only does application complexity put a burden on the server resources, but applications increase the burden on the WAN. With a widely distributed user base, organizations must address the challenge of WAN performance if they are to deliver applications to remote users with an acceptable user experience. To meet this challenge, Cisco provides a solution to host applications and deliver them over the WAN while helping ensure the highest levels of scale and performance, enabling organizations to achieve their business initiatives.
Find out how by downloading this Cisco whitepaper.