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To: djane who wrote (47449)5/23/1998 3:55:00 AM
From: djane  Read Replies (1) | Respond to of 61433
 
7/98 Cook report on IP over WDM. [Info on Pluris, Juniper and Avici]

cookreport.com

Optical IP Backbone Revolution
Emerges Canarie Runs IP Over WDM
Eliminating SONET and ATM --
Expects Cost Savings of Greater Than
95%

Avici Terabit Packet Switch Capable of Oc-1536 --
Plummeting Costs Mean Creation of "Inexpensive"
New Carriers Able to Out Perform Old Giants pp. 1 -
6

A technology cost tsunami is about to break. When the flood
recedes, expect the landscape to be drastically different. An interview with Bill St. Arnaud of Canarie explains the optical backbone
network project for which he has just received funding. Using either gigabit Ethernet framing or SONET framing but no ATM and no
SONET equipment, it will move TCP/IP packets directly over Wave
Division Multiplexing.
This will gain back a 25% overhead in
bandwidth eaten-up by the suddenly archaic transport technologies.
But far more important is that the SONET and ATM equipment
rendered obsolete may represent a saving of more than 95% of the
cost of delivering bandwidth. Bandwitdh that cost more than $5000 a
month to deliver in January 1998 may cost the new players as little as
$50 a month to deliver before the end of next year. Of course 'cost'
does not equate to price.

St. Arnaud points out that he can take an off- the-shelf Cisco GSR
12000 gigabit router a get it to route TCP/IP over WDM. While the
network will require no technology breakthroughs, it will require
technology integration and work on some of the routing protocols to
function with maximum efficiency. It will be used for beta- testing
technology from Pluris, Juniper and Avici which on May fifth
announced a breath taking device that puts lasers and router in the
same box and can reach an amazing OC-1536 (160 gigabits per
second) over a single strand of fiber.


Economic implications for the telcos are profound. Some folk expect
legacy SONET networks to run parallel to the new optical networks
for sometime. Others say the problems that will be raised for the
incumbent LECs and IXCs will be so serious (as evidenced by some
of Qwest's recent creative deals) that they will have no choice but to
begin to cannibalize their legacy networks as quickly as possible.
Given that they could quickly find themselves with operating and
depreciation costs that are up to ten times higher than the next
generation telco's (Qwest, Level 3, etc.), they may be in a serious
position rather quickly. Look for them to hold on to the local loop to
keep from drowning.
The bottom line, as Jack Waters Engineering
VP at Level 3 told us in an interview on May 2, is that Level 3
resulted last year when founder James Crowe realized that it was
possible to invest between a billion and ten billion dollars and build a
state-of-the-art telecommunications company that would have cost
$100 billion to build in the early 90's.

Some of the implications near term for the public internet are
interesting. As the backbone "x" interview at the end of this issue
shows, the big five have private interconnects locked up and open
peering at the public exchanges is essentially worthless. (Verio
probably the sixth, seventh or eight largest backbone can't get private
peering with UUNET.) Therefore those not in the top five get
increasing squeezed in costs to the point where they effectively have
to become customers of the top five.

Now enter Qwest and Level 3 with national and international fiber
nets of their own and the ability to offer almost unlimited backbone
capacity to major corporations and second tier NSP backbones. If
the pricing is right, they should fill their backbones quickly turning
from a large intranet into a shadow internet. They must still buy
connectivity to the public internet controlled by the big five in order to
be viable. Their low cost of operation should enable them to pay
whatever prices are necessary. Furthermore it will be possible to
measure customer traffic flow into and out of the public Internet and
charge a price differential for that traffic. If the connection price
charged to begin with is low enough, customers should not mind
paying the differential and the next generation backbones should very
quickly become magnets that attract business that would otherwise
go to the big five. The key indicator to watch in coming months will
be Qwest's and then Level 3's pricing.

Internet Telephony for the Stupid
Network Small Canadian Company
Produces Device to Connect Phones To
IP Nets

Explains an Architectural Mindset & Standards
Framework By Means Of Which IP Telephony Can
Replace PSTN, pp. 7 - 15

Francois Menard wants to completely redesign the telephone
network in a way such that voice inside IP packets with replace the
PSTN. He offers users an inexpensive hardware device that functions
as a bridge between an ordinary telephone and an IP carrying
Ethernet, or cable modem service. While his device will interface with
a PC, he seeks to have it function independently of a PC by moving
the intelligence of the phone company central office switches to the
edge of the network. His phone adapter will have enough intelligence
in it to function as a client and will interact with server software
located inside of the domain of the service provider. As he puts it, the
phone adapter contains that extra small amount of computing power
that must be deployed in the end-user's home "if we are to succeed in
introducing new services to the network without going to the expense
and complexity of employing telephone switches inside the network
to achieve them. We are taking the network intelligence that is
prominent the central office switches and moving it to the edge where
signaling and call initiation will all be done inside the telephone."

He sees this happening in the context of the general demand for faster
Internet access. This demand is forcing the telcos and the cable
companies to make architectural changes to the networks that will
render them capable of providing Internet telephony as an unintended
by product. The ability to plug telephone lines into this architecture is
a welcome, but almost inadvertent, dividend of the architecture itself.
The key to all of this is to be able to apply very low cost telephone
appliances to the opportunity. The phone adapter that Mediatrix
makes is one such appliance.

He sees the future as one, not of IP telephony toll by pass, achieved
by IP based detours around parts of the PSTN, but as one where
connectionless IP based networks replace the phone companies
circuit switched networks. The new world is one where everything
becomes part of a data network and where you cannot expect to
open data packets to ascertain whether they are voice or video or
ASCII text. You can no longer think about charging according to the
kind of data the packet contains. Doing that would be totally
inefficient. Therefore you have to focus both on charges for quality of
service delivered and new telephony services that can be delivered
by intelligence under the users' control at the edges of a big, fat, fast,
stupid IP network. By making a device that enables an ordinary
phone to reach another ordinary phone via a simple cheap bridge to
an IP enabled telephone network or cable TV network, he hopes to
encourage both industries to adapt his bridge out of fear of loosing
customers to the side which offers services that the first cannot.

Within 12 months he wants to turn his bridge into an IP telephony
chip. That he believes will cause the dominoes to begin to fall. In his
words: "Once we have an IP telephony chip, then adding IP
telephony will not involve a significant cost for anything that speaks
IP. At that point the only unanswered question becomes what your
dominant home local area network technology will be. Regardless of
the answer, you will begin to be able to put new wall-plate,
data-speaking jacks all over your house. Either you will do it with the
telephone wiring or you will decide to call your local cable vendor."

Finally in talking about standards development, he explains H.323 as
the protocol favorite of Intel and Microsoft. H.323 is big and
bloated. It is so complex (originating in past from Intel's work on
ISDN a few years ago) that companies smaller that Intel and
Microsoft have trouble dealing with it. He contrasts H.323 with SIP a
smaller and lighter protocol under development at Lucent and
elsewhere. When SIP is finished at the end of 1998 he predicts that it
will triumph over H.323. H. 323 is a way to standardize a protocol,
while SIP is a way to standardize a generic means of conveying
session initiations on the Internet. SIP is layered. If you want to do
more things you simply add another protocol on top SIP. With the H.
323, if you want new features, you need to build them the inside the
ASN.1 structure which is in turn inside of H. 323.

As long as you have the PSTN in the picture -- you will have a
problem with Internet Telephony. Gateways are merely a means of
interfacing the PSTN with Internet Telephony.

Effort Ramps Up to Map Phone
Numbers to DNS Viable Protocol
Mapping Sought to Enable IP Telephony
to Transparently Cross Provider
Boundaries, pp. 16 - 20

An effort is afoot to find a way to map phone numbers from the
PSTN to DNS or some naming system that would enable Internet
telephone calls to go transparently across provider boundaries and
into the PSTN. Discussion with Richard Shockey and the new IPTel
mail list.

Peering: Backbone X Gives Most
Candid Look Yet

Private Peering Unobtainable -- Public Exchange Full
Peering Rendered Worthless by Bandwith Bottleneck
Between Exchanges & Big Backbones pp. 21 - 22, 24

On the condition of anonymity, a backbone has given us the most
detailed summary of the actually operation of peering we have yet
seen. It is likely that the peering agreements between the big five and
30 or so smaller backbones at the public exchanges won't have to be
abrogated by the big five. The reason is that, as traffic growth at
places like MAE East has doubled in the last year, the big five have
not increased the capacity of the pipes from their backbones to the
exchanges. These pipes have turned into bottle necks that render the
exchanges increasing worthless as a means of interconnection to the
big five.

The smaller backbones are being offered variations of peering.
Backbone "x" describes "paid peering," and "non shared peering" as
way stages set up between the increasingly worthless free peering at
public exchanges and fully shared privately interconnected peering.
What this means is that the second tier backbones have essentially
three choices: maintain increasingly non viable public exchange
peering with the big five. Find the money to become paid customers
of the big five or switch to Qwest and Level 3 if acceptable pricing
and transit is available. An irony is that because of non disclosure
agreements it is very difficult to know how a second tier backbone's
status is changing since the backbone itself is happy to keep the non
disclosure in effect. Doing otherwise would be to let the public know
its status had been diminished. We vetted our draft with two other
backbones which told us they found it accurate.



To: djane who wrote (47449)5/23/1998 5:59:00 PM
From: djane  Read Replies (2) | Respond to of 61433
 
The Currency Crisis and Asia's Online Services Boom
[Includes info on NTT and ALA plans]

telecoms-mag.com

Charles Dodgson

May 1998

South-East Asia's recent financial turmoil has forced several countries in the
region to reassess their ambitions to become multimedia hubs. Much of the
initial drive to build superfast multimedia networks was spurred by the
economic success of Asian economics. But as the economic rationale has
crumbled, so the new buildouts are coming into question.

International financial news for most of the past nine months has been
dominated by the Asian currency-cum-banking crisis. Many commentators
have projected gloom and doom from the follow-on effect of what started out
as a property crash in Thailand and escalated into a full-blown regional crisis
with every South-East Asian stock market losing over 50 per cent of its value,
and regional currencies plummeting in value against the US dollar. But what
has been the effect of this crisis on the region's plans to become a multimedia
hub?

With the apparent collapse of the 'Asian miracle', most Asian countries have
re-assessed their political leadership. Leaving aside Singapore's prime minister
Goh and Philippine President Ramos, who is required to retire in May,
Malaysia's Prime Minister, Mahathir Mohamad, and Indonesia's President
Soeharto are the only two leaders remaining in power in Asia that occupied
their position on 2 July 1997, when the value of the Thai baht collapsed and
confidence in the regional economies began to wane.

Against such a background of unprecedented political instability in economies
whose growth had been underpinned by strong leadership, there is concern
that the fixed-line rollout targets and plans for national information
infrastructure (NII) projects will be abandoned, or at least scaled back.
Although there are signs that this is occurring in Indonesia, Thailand and the
Philippines, elsewhere the 'crisis' has had remarkably little effect in this area.
There are three reasons for this.

Firstly, the 'Asian crisis' was an inevitable correction to markets which were
growing too quickly. Stock analysts and market researchers have stated that
as greater amounts of capital were generated, unrealistic amounts of money
were channelled into the property market in Asian capital cities. Accordingly,
the current correction will lead to a more realistic property market with the
development of more sophisticated lending principles from financial
institutions. This will have a positive follow-on effect for telecoms and
information technology (IT&T) companies which have struggled to attract
venture capital in Asia.


Secondly, virtually every Asian economy has identified IT&T as a priority
development sector.
Indonesia's outgoing communications minister, Joop Ave,
claimed to be expressing a common view among Asian communications
ministers when he told Telecommunications International in December, as the
rupiah was going into freefall, that, "There is a thorough understanding that it is
the information society that will lead to development and to meet this objective
the network rollout programmes must continue. It is impossible to stop
investment in telecoms and multimedia because it is the sector that will help us
get out of our current problems".


The third reason is a reflection of Ave's comments. Gartner Group telecoms
analyst, Helene Frontin, said that a trend has emerged in which companies
involved in installing networks are suffering from a credit squeeze. However,
local service provision companies with cashed-up foreign-based partners and
smaller companies which have entered the market by providing services other
than simple telephony, are thriving. These include Internet service providers
who, because of their continued growth in stagnant markets, are quickly
becoming a significant driving force behind the installation of higher bandwidth
infrastructure.


Foreign Confidence Remains

Furthermore, foreign companies involved in providing equipment to companies
which offer peripheral services on the existing telecom networks are reporting
record sales and growth projections.
Hewlett-Packard (HP) said that there
has been over 100 per cent increases in printer and scanner sales in every
Asian market over the last 12 months, including Indonesia, Thailand and South
Korea, the countries worst hit by the economic downturn. According to HP's
director of marketing, Christopher Morgan, the increased sales are a direct
result of the increase in online services. Morgan is quoted by analysts as
saying that HP doubled its sales last year and expects to do so again in 1998.

Morgan's projections came as US-based network equipment vendors, Cisco,
3Com and Bay Networks all announced that they intend to expand operations
in the Asia-Pacific region over the next 12 months, despite the region's
economic turndown.


Asia, excluding Japan, Australia and New Zealand, had some 2.43 million
Internet users at the end of 1997, according to the Gartner Group. There will
be 15 million Internet users in the region by 2001.
Taiwan remains the region's
most connected country with 870,000 Internet users at the end of 1997. This
is expected to rise to 3.35 million by 2001. India and China have the fastest
growth projections. India had 40,000 Internet users at the end of 1996, and
by the end of 1997 this had risen to 200,000 and is expected to reach 1.8
million by 2001. China had 250,000 Internet users by the end of 1997 and
expects to have 2.7 million by 2001.


There are differential approaches among Asian economies to take advantage
of the growth in demand for high bandwidth and associated applications. The
developing economies of India, China, Thailand, Indonesia and the Philippines
have all announced that they will encourage plans to install broadband
networks. However, in every case, these rollouts will be secondary to the
need to first install basic fixed-line telephony.

The Philippine secretary to the Department of Transport and Communications,
Josefina Lichauco, said that the Philippines would love to have the money
Malaysia and Singapore have to install broadband networks, but with less
than 10 per cent teledensity, no developing government can justify the huge
funding requirements. An official from the Chinese Ministry of Posts and
Telecommunications, listening to the conversation, added that despite the
formation of Ji Tong to create a national information infrastructure, the Chinese
government shares the same view as the Philippines.

Lichauco said that the credit squeeze which has accompanied the economic
meltdown in Asia has stalled any plans the Philippines had entertained in
advancing a broadband project. Telecommunications International
understands that Indonesia's Nusantara 21, which was announced in
December 1997, and Thailand's unnamed project which was to be part of its
much-discussed telecoms masterplan, have both been stalled indefinitely
because of funding problems.

Marketing Malaysia's MSC

While every Asian country has identified IT&T has a priority sector for
industrial development, no government has marketed the concept as
aggressively as the Malaysian government under the prime ministership of Dr
Mahathir Mohamad.

When the baht collapsed on 2 July, Mahathir was on leave from the office
marketing his pet project, the Multimedia Super Corridor (MSC), a 15 by 50
km tax-free zone extending south of Kuala Lumpur and incorporating
Malaysia's new capital city, Putrajaya, a new international airport and
Cyberjaya, a so-called intelligent city.

Mahathir returned from his marketing trip in the US and Europe with
agreements from some 101 multinational companies to participate in building
the MSC. However, the commitments from these companies were vague with
the only clear announcements coming from the MSC's construction company,
Multimedia Development Corporation (MDC). The MDC said that MSC
status entitled foreign companies to tax holidays and preferential treatment for
bringing in foreign staff.

Shortly afterwards, Telekom Malaysia announced that Japan's NTT would
partner it to build a 2.5 Gbps fibre optic backbone with ATM switching
supplied by Alcatel.
The backbone will have a 5 Gbps international gateway
with direct links to the US, Europe and Japan. The multiprotocol open
network will be based on a three-tier structure: the first is the backbone, the
second is customer access from 34 Mbps to 622 Mbps, and the third is
customer access from 64 kbps to 2 Mbps.

When the full impact of the consequences of the currency crisis began to be
felt, Mahathir voiced theories about western capital having an intention to
undermine the economic achievements of Asia. Observers agree that, while
Mahathir's comments contributed to the stock market crashes in Southeast
Asia, the comments should not detract from Mahathir's achievements. As if to
prove the point, during February and March the chairmen of IBM, Microsoft,
Sun Microsystems, Ericsson, Alcatel and NTT all made their way to Malaysia
to attend discussion groups as members of the MSC advisory board on how
best to progress the project.


Little information has emerged about the talks. However, Othman Yeop
Abdullah, the executive chairman of the MDC, said that the current economic
slowdown has not had a negative impact on the overall development of MSC.
Othman said that the MSC has attracted some MR$ 4 billion worth of
investment commitments despite the regional economic crisis and that a total
of 103 companies, out of 176 applications, had been given MSC status.

One commentator said that the idea behind the MSC was simply to attract
expertise to Malaysia. He said that Mahathir had hit upon an idea to 'fastrack'
Malaysia into the information age, and while the objectives of the MSC are
still necessarily vague, the idea is sound because Malaysia will benefit from the
proximity of high tech companies.

Meanwhile, Mahathir said after his meetings with the MSC advisory board,
that despite Malaysia's efforts to curb credit growth given the prevailing
economic problems, IT companies would find no difficulty in getting loans now
or in the future as channelling investment into IT in the MSC had been
identified as productive.

While Mahathir has won credit for his approach to get multinationals to base
their regional operations in Malaysia, he has been criticised for failing to
provide any guidance on content provision in his MSC. This problem was
highlighted in January by the MSC's agreement to link itself with a technology
park near Chennai, in southern India, in order to provide the MSC with
programming. Critics say that Malaysia lacks the creative input to provide
content for the MSC and that while the broadband project will go ahead, the
MSC will be highly vulnerable if alternative regional hubs are established in
India or Australia.

Singapore's Move to Creativity

The Singapore One project faces the same problem, as acknowledged by the
Singapore government's campaign to make Singapore a 'Creative Island'.
According to a press release from the Telecommunication Authority of
Singapore (TAS), the idea behind the campaign, which was launched during
1997 after the Singapore One launch, is to migrate Singapore away from
manufacturing high tech equipment towards using that equipment creatively.

The release is one of the few which say anything concrete about Singapore
One. Like the MSC, press releases about Singapore One are high in hype but
give little detail on the technology or the funding for the project. What is clear
is that NTT is partnering Singapore Telecom in the rollout, and that the project
aims to connect every Singaporean to a broadband network by the end of
1998.


Last month, Singapore completed its first secure electronic transaction via the
Internet -- a service critical to Singapore One -- in order to facilitate
transactions, credit card purchases and global electronic commerce.
Singapore One's pilot broadband network infrastructure includes the public
network, cable television access networks, access networks for government
services and other access networks that connect to a digital optical fibre
network and several broadband ATM switches supplied by Alcatel Singapore
Pte Ltd.


Charles Dodgson is editor of Telenews Asia, and is based in Sydney,
Australia.

[TOP]



To: djane who wrote (47449)5/23/1998 6:06:00 PM
From: djane  Read Replies (1) | Respond to of 61433
 
Chip Makers Eye Fiber Optic Market

pubs.cmpnet.com

(9:45 a.m. EDT, 5/22/98)

By Mark LaPedus

In what could be a sneak preview of next
month's Supercomm '98 trade show in Atlanta,
several chip makers this week begun rushing out
products designed for the emerging fiber-optic
market.

Applied Micro Circuits Corp., Lucent
Technologies Inc., TranSwitch Corp., Vitesse
Semiconductor Corp., and a slew of other
companies have or will show SONET/SDH
chips at Supercomm '98, which is slated for
June 7-11.

Eariler this week, for example, the
Microelectronics Group of Lucent Technologies
got the ball rolling by announcing the
TMPR28051, a chipset that complies with both
the North American (SONET) and European
(SDH) fiber-optic transmission standards.
Consisting of two chips known as a mapper and
multiplexer, Lucent's chipset converts 28
channels of DSI signals, or 21 channels of E1
signals, into a 51.84- to 155.2-Mbit/s format,
according to Dave Romero, marketing manager
for Lucent's Microelectronics Group.

The mapper and multiplexer are both available in
208-pin SQFP packages.

Pricing for the mapper chip is $165 in
10,000-piece lots, while the multiplexer IC is
$140, in similar quantities.

Another chip maker, Camarillo, Calif.-based
Vitesse Semiconductor Corp., rolled out two
gallium arsenide-based, physical-interface
chipsets for 2.5-Gbit/s SONET/SDH systems.
The products, called the VSC8161 and
VSC8162, are designed to reduce overall
systems cost for OC-48/STM-16 networks.

The mainstream SONET market falls at OC-48
transmission rates, but the OC-192 arena will
emerge in the future, according to Andrew
Schmitt, telecom marketing engineer for Vitesse.

The VSC8161 is available in a 100-pin PQFP
package. The VSC8162 is available in a
128-pin PQFP package. Pricing is $198 for the
VSC8161, and $158 for the VSC8162, both in
1,000-unit quantities. Production is slated this
September.

TranSwitch plans to expand its SONET/SDH
line later this month, according to Santanu Das,
president and chief executive of the Shelton,
Conn.-based company.

Return to EBN Home Page



To: djane who wrote (47449)5/23/1998 6:11:00 PM
From: djane  Read Replies (2) | Respond to of 61433
 
6/9/98 PC Magazine on the future of WANs
(via BAY thread)

The following article is from June 9 edition of PC Magazine.

Today, the model is a leased line and your own routers. In the future, you will trade up front equipment purchase costs for higher monthly charges. If this is true, what will be the impact on companies like Bay, Cisco, Fore or companies like Lucent, or Northern Telecom?

Wide Area Networks

At this moment, the powerful regulated carriers, primarily RBOCs (Regional Bell Operating
Companies), are winning the regulation battle by outmaneuvering the proponents of
competition. These regulated carriers simultaneously charm Wall Street with promises of
earnings growth, cow state public-utility commissions and the FCC with reports of
financial problems, and alarm public factions with warnings of loss of service and huge
price increases. Their court activities defy simple description.

The outlook for the delivery of innovative WAN services from the regulated carriers or their unregulated subsidiaries is dim. Generally, it's fair to say they talk about innovation and practice stagnation.

Innovation in the WAN market in 2001 and beyond will come from special contracts with carriers using shared frame-relay networks to displace leased lines and locally provided routers, firewalls, and intranet servers. The contracts deliver services outside regulated tariffs. The best WAN plan in the next decade will be to use customized frame-relay services to drive around the dead zone of regulation. Today, we call this emerging business VPN provisioning or outsourcing. In 2001, it will be the common way of doing things.

Today, you can save 20 to 30 percent of your annual leased-line connection costs by contracting for replacement frame-relay services. By the millennium, the savings should be higher, because the real unregulated costs will be much lower. Public data networks delivering a menu of services are clearly the preferred alternative for year 2001 WANs.

But there's a long list of catches. In today's model, leased-line pricing is distance-sensitive and
traffic-insensitive. Public data networks are just the opposite, so you'll have a whole
different traffic
model to consider. Today, when you create your own WAN with leased lines and your
own routers,
you know what you pay for options such as added security or management. When you
buy a package
of services, you get a bottom-line quote with little detail broken out. You will trade
today's up-front
equipment-purchase costs for higher monthly charges. Comparing different bids for
integrated services
will involve analyzing the offerings carefully and then weighing the value of some arcane
differences.

The WAN 2001 we envision is a linear progression from today's. Differences in magnitude will come only from unexpected breakthroughs provided by innovative, competitive carriers.

WAN Watchwords

CLEC

Competitive local exchange carrier. This category includes companies that compete
with the franchised local telephone companies. Carriers such as AT&T compete as
CLECs in some areas, as do power companies and many others.

Frame relay

A data-carrier technology that uses shared switches and wide-bandwidth connections.
For a monthly fee, a frame-relay service offers reliability, flexibility, and economy.

ISP

Internet service provider. The smaller ISPs--there are thousands in the U.S.--typically
lease circuits from other carriers and add features such as e-mail as well as Web-site
hosting and domain-naming services.

IXC

Interexchange carrier; a long-distance carrier that moves traffic between LECs.

LEC

Local exchange carrier. There are more than 100 such franchised local telephone
companies in the U.S.; the biggest are the RBOCs plus GTE.

RBOC

Regional Bell Operating Company; any one of the LECs spun off from the original
AT&T Bell system.

VPN

Virtual private network; a network that seems to be dedicated to one user but really
rides over shared public services.

From the June 9, 1998 issue of PC Magazine

TOP

Copyright (c) 1998 Ziff-Davis Inc.

From the June 9, 1998 issue of PC Magazine

TOP

Copyright (c) 1998 Ziff-Davis Inc.

From the June 9, 1998 issue of PC Magazine

TOP

Copyright (c) 1998 Ziff-Davis Inc.



To: djane who wrote (47449)5/23/1998 6:22:00 PM
From: djane  Respond to of 61433
 
Groups form around symmetric DSL, inverse multiplexing gear -- Coalitions push networking interoperability [ASND reference]

By Loring Wirbel, May 25, 1998, TechWeb News

techweb.com

Milpitas, Calif. - The deadline of major demonstration testbeds at next
week's ATM Year '98 and the following week's Supercomm show has
spurred network-equipment vendors to form coalitions to ensure
interoperability of equipment. Several companies working on inverse
multiplexing equipment for handling multiple T1 services over ATM have
formed the IMA Interoperability Initiative, or I3.

Meanwhile, developers of symmetric digital subscriber line services over long
local loops have formed the SDSL Interoperability Initiative. In both cases,
developers hope for near-term demonstrations on show floors.

I3 appears to have the broader base of true multivendor support of the two
groups. Sentient Networks Inc. and Larscom Inc., both of Milpitas, along
with Santa Clara-based 3Com Corp., are the three primary players in IMA
equipment, and all served as founding members of I3. The test labs for
equipment will reside at Sentient headquarters. Over the course of last week,
Ascend Communications Inc., Digital Link Inc., Northern Telecom, and
Sonoma Systems Inc. all agreed to join I3.

Nimish Shah, chief technology officer at Sentient, said there had been some
important pre-standard deployments of inverse mux technology from the
former OnStream group within 3Com, and from Larscom, offering a
bit-based solution for inverse multiplexing. But the completion of the ATM
Forum's IMA standard opened a floodgate.

"The gap between T1 and T3, in terms of both bandwidth and pricing, was
large enough to drive a truck through, creating a lot of pent-up demand in the
market for an efficient way to concentrate traffic over ATM," he said. "The
main issue now is showing that vendors' solutions at the customer premises
can interoperate, and we expect these tests to lead to significant expansion of
all the members' business."

Robin Langdon, senior product manager for network systems at Larscom,
agreed, saying that even though there will be continued residual business for
the company's bit-oriented IMA solutions, "the customer base wants to turn
quickly to the ATM Forum's version of IMA, and we expect some significant
business in the latter part of this year."

Larscom acquired ATM edge-switch manufacturer NetEdge Systems Inc.
late last year, and the company is expecting some traffic-concentration
product offerings as the switches and IMA systems converge, said George
Fragos, director of next-generation products at Larscom.

Mihir Mohanty, product manager at Sentient, is serving as chairman for the I3
group and is overseeing application-suite development at the Milpitas testbed,
which will help drive the demonstrations at ATM Year '98.

The SDSL Interoperability Initiative is more tightly focused to Copper
Mountain Networks Inc.'s central-office equipment for implementing SDSL
networks using 2B1Q line codes. Nevertheless, the initiative has gained a
variety of supporters, including Rockwell Semiconductor Systems,
data-oriented Competitive Local Exchange Carrier NorthPoint
Communications Inc., and customer-premises equipment vendors.

Richard Sekar, Copper Mountain product marketing director, said the
alliance involved more than subscriber-modem interoperation with
CopperEdge equipment. Any system complying with RFC-1490 standards
for a 2B1Q line code operating at 768 kbits/s, using a single permanent
virtual circuit over 12,000 feet, should be interoperable at both remote
modem and DSL Access Multiplexer ends.

Copyright r 1998 CMP Media Inc.

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