The
Linley Wire
Independent
Analysis of the Networking-Silicon Industry
Volume 6, Issue 7
April 20,
2006
|
 |
Editor: Linley
Gwennap
Contributors: Bob Wheeler, Jag
Bolaria, Joseph Byrne
In
This Issue
Networking
Silicon Market Share 2005 provides the
latest data on revenue and market-share estimates for wired communications
ASSPs. The report is available now for immediate
delivery. For more information, visit our web
site.
Solarflare
Obtains NIC Capability
This week, Solarflare and Level 5 announced an agreement to merge
the operations of the two companies. The combined companies will
continue under the Solarflare name and the Solarflare management
team, including CEO Russell Stern. The merger combines about 50
employees from each company. Although Stern would not disclose
the exact amount, Solarflare raised additional venture funding
in support of this merger. The new Solarflare has a cash balance
of $50 million, which should be sufficient for the company to deliver
its 10Gbps Ethernet products.
Founded in 2001, Solarflare is the leading developer of Ethernet
PHYs for the 10GBase-T standard or 10Gbps Ethernet over copper.
The company should be the first vendor to sample a 10GBase-T
PHY. These initial PHYs, however, are multichip products
dissipating
10W or more. Solarflare is likely to need another generation
before its PHY solution is attractive for NIC applications.
Founded in 2002, Level 5 develops advanced Ethernet controllers.
The company is shipping a 2xGbE NIC with PCI-X 1.0 host interface
and is developing a 10Gbps Ethernet controller. Level 5’s
solution is unique in having a TCP/IP software stack for each application
space. This approach bypasses the OS to eliminate context switching,
resulting in lower CPU utilizations and latency as compared with
a typical GbE controller. Proprietary TCP/IP stacks, however, have
had limited acceptance by end users, as evidenced by Ammasso’s
exit. Solarflare may have better success by reapplying Level 5’s
technology to Microsoft Chimney implementations.
By
adding Level 5’s controller to its PHY, Solarflare can
develop a complete NIC solution for servers, expanding
its market opportunity. Whereas leading 10GbE NIC vendors rely
on a third-party
PHY, Solarflare can develop a more integrated NIC. The
company, however, has stepped into a more competitive space,
where it
will face established vendors like Marvell and Broadcom
instead of startups.
—Jag
Complete
coverage of Solarflare appears in our forthcoming report A
Guide to High-Speed Interconnects.
Cisco Extends SPI-4.2
This month, Cisco and startup Cortina Systems announced the availability
of the Interlaken specification as a follow-on to SPI-4.2. Interlaken
targets packet-processor connections at 20Gbps and greater data
rates. Cortina and Cisco are providing a royalty-free license to
this technology with the goal of creating a de-facto standard.
Interlaken is a serdes-based interface, with each lane operating
at data rates of up to 6.25Gbps. For better efficiency than XAUI
and other interconnects, it uses 64b/67b coding. Interlaken stripes
packets as eight-byte words across the number of lanes used in
the application. Each lane uses a scrambler to randomize data
for recovery at the receiver. If any lane fails, Interlaken
will stripe
across the remaining lanes. To provide redundancy without a reduction
in performance, system designers can provision more lanes than
necessary. Interlaken preserves the SPI-4.2 burst and packet-control conventions.
A packet is divided into smaller bursts, delineated by a header.
The bursts are striped as words, round robin, across the serdes
lanes. Each burst contains a control word, which is used to indicate
the start and end of a packet, for alignment, and to indicate idle
messages. It also includes the burst control word, which is used
for flow control messages and a 24-bit CRC. Interlaken uses two-state
Xon/Xoff flow control (simplifying SPI4.2's three-state method)
either in-band or out-of-band.
With line
cards and processors moving to 20Gbps, Interlaken solves a
problem that
is currently unaddressed in
the market. Although
Cisco has the volume to create a de-facto standard, the company
has not stated its intent to adopt Interlaken broadly within Cisco. —Jag
Complete
coverage of Cortina and Interlaken appears in our forthcoming
report A
Guide to High-Speed Interconnects.
Tundra
Acquires Alliance Bridges
For a fire-sale price of $5.8 million, Tundra this week picked
up a unit of Alliance Semiconductor that develops bridge chips.
From a previous acquisition, Alliance had a design team in India
that was developing PCI Express (PCIe) bridge chips. Tundra will
acquire this team as well as a handful of marketing and administrative
personnel in California. In addition, Tundra adds short-term
revenue of nearly $2 million per quarter from Alliance's existing
HyperTransport and PCI bridges.
In 1Q06, Nasdaq took exception to Alliance's accounting
practices, issuing a delisting notice to the company.
Since then, Alliance
replaced its CEO and has been looking to sell its business
units. In this situation, Tundra saw a low-cost opportunity
to enter
the PCI Express bridge and switch market, complementing its
existing PCI and RapidIO bridge chips.
Tundra
hopes to quickly integrate Alliance's engineers and develop
a PCI Express product line. Tundra's
PCIe product
line, however,
will be later than similar products from PLX, IDT, NEC,
and Pericom. Tundra will need to develop an innovative
solution
to differentiate
from these existing products. Thus, the company faces an
uphill challenge to leverage this acquisition into a successful
new
PCIe product line. —Jag
Complete
coverage of Tundra's bridge and switch products appears in
our forthcoming report A
Guide to High-Speed Interconnects.
Linley Tech Seminar: High-Speed Interconnects and Fabrics Join us on June 14th for a Linley Tech seminar on High-Speed
Interconnects and Fabrics. This event is designed to provide
in-depth coverage of the latest advances in interconnects and
how these may best be deployed in systems. The seminar will feature technical presentations from leading
suppliers of products for interconnects and fabrics, including
AMCC, Freescale, StarGen, PLX Technology, IDT, Tundra, Dune,
and Pericom. Sessions will cover applications for bridges between
interconnects, fan out switches, and fabrics over a backplane
as well between systems.
The sessions will feature case studies of interconnects used
in various applications. Each session will review the type
of interconnect technology used and what makes it suitable
for the
target application. Interconnects covered include PCI Express,
RapidIO, Advanced Switching, Ethernet, and proprietary. The
day will conclude with a panel discussing the longer-term
trends in interconnects and fabrics.
This
Linley Tech seminar will be held at the DoubleTree Hotel in
San Jose. Regular admission is $495, but
is free to
qualified individuals who register by June 9. The seminar
is targeted
at OEMs, board developers, software developers, press,
and the financial
community. Register today
Sponsored by Freescale, AMCC, StarGen, Tundra, PLX, IDT,
Dune, Pericom, and The Linley Group.
New
Report: A Guide to Security and Content Processors
Security functions are no longer confined to just firewalls
and VPN units; the scope of applications continues to expand
encompassing IP storage, wireless networks, secure VoIP, L4-7
switches, and servers. The growth in e-commerce is driving an
explosion in secure web traffic as consumers need to securely
transmit credit-card numbers and other personal information.
Corporations are turning to virtual private networks (VPNs) to
eliminate expensive leased lines and to safely access sensitive
data from remote offices and even employees' homes. The explosive
growth of wireless networks provides another valuable application
for encryption, to keep sensitive data from the prying eyes of
hackers armed with wireless laptops.
To meet this need, network equipment vendors are incorporating
security into their entire product lines rather than segregating
it in separate VPN boxes. But in most of this equipment, the
bandwidth demands overwhelm the ability of a standard CPU to
perform secure encryption. These equipment vendors are turning
to security processors to offload their routers and servers.
After several years
of rapid evolution, standalone security-processor performance
has leveled off. The market
for multigigabit security
has not grown as expected; at the low end, standalone security
chips are being displaced by security functions embedded within
communications processors. Yet, the need for security is greater
than ever; instead of providing only encryption, today’s
security appliances must examine content and protocol behavior
all the way up to the application layer to provide adequate protection.
Security processor vendors are finding that they must rise to
the challenge of providing multilayer security. At the same time,
several companies are now developing content-inspection solutions
for XML and web services in addition to application-level security.
A
Guide to Security and Content Processors gives you the latest information
on what's happening in this dynamic
market.
The report covers IPSec and SSL accelerators from market leaders
Hifn, Broadcom, SafeNet, and Cavium, as well as processors
that integrate high-throughput encryption, such as Cavium's
Octeon,
Raza's XLR, and Intel's IXP285x. In addition, the report examines
vendors developing content-processing solutions, such as Tarari,
Sensory Networks, NetLogic, and SafeNet. This new edition brings
everything back into focus with up-to-the-minute coverage of
the newest vendors and technologies. With one report, you can
quickly compare these vendors and their products and choose
the ones that best suit your needs.
Order by May 26 to take advantage of the prepublication discount.
For more information on this report, visit our web
site.
Did you
know that The Linley Group now publishes a newsletter focused
on semiconductors for consumer electronics? Here are headlines
from the latest edition of Linley on CE.
—Qualcomm
Samples First HSUPA Processor
—Broadcom Integrates CellAirity Chip Set
—New Benchmark for Video Processing
Subscribe to
Linley on CE today. Read
the latest edition here.
To
receive The Linley Wire via e-mail, click
here
About
The Linley Wire
© 2002-2006 The Linley Group
|