Tuesday, December 29, 2009
Monday, December 21, 2009
Verizon's test of XG PON technology -- passive optical network gear that operates at 10 gigabits per second -- was a resounding success on multiple levels, according to Brian Whitton, the carrier's executive director of access technologies. But the fact that the successful field trial was...READ MORE
Thursday, December 10, 2009
Very interesting article.....
We are studying an empirical Internet question central to its security, stability, and sustainability: how many networks allow packets with spoofed (fake) IP addresses to leave their network destined for the global Internet? READ MORE
Friday, December 4, 2009
John Chambers, Chairman and CEO, speaks with CNBC about Cisco's first quarter fiscal year 2010 financial results, Tandberg Aquisition and Green IT....
Thursday, December 3, 2009
Tuesday, December 1, 2009
Is Apple ramping up testing of a new iPhone?
While the typically secretive company hasn't given any details of its next iPhone, a report in the MacRumors Web site gives some indication of what might be ahead as competitors scramble to match and exceed features of the hot-selling device.
The report is based on information MacRumors obtained from iPhone developer Pandav, which said it spotted usage records for an unreleased..... Click To Read On
Saturday, November 21, 2009
Mind you, we're talking about a service, a 100-Gbit/s pipe going to one customer. Carriers have said for some time that 100-Gbit/s Ethernet equipment would come in handy if it were available today. (See Facebook: Yes, We Need 100-GigE.) Now, some high-end Ethernet providers see the same potential for services.
"I think the early movers in the enterprise space that would use 100 Gbit/s were existing six months ago," said Rajiv Datta, chief technology officer of AboveNet Inc. (NYSE: ABVT).
Michael Rouleau, senior vice president of business development at tw telecom inc. (Nasdaq: TWTC), said his company is working with customers and equipment vendors now, in preparation for 100-Gbit/s services: "They're not just looking at inverse multiplexing. They're looking at 100 Gbit/s."
Optimum Lightpath likewise sees a need -- not surprising, considering its territory includes New York's clutch of Type A financial firms. "The question is: When does the service become viable from an economic standpoint?" said Christopher Rabii, senior vice president of technical operations for Optimum Lightpath. "Right now, it's obviously too soon. But if you're going to say, 'Is it five years away?' No way. It's much sooner than that."
Panelists stressed, though, that putting up a 100-Gbit/s service won't be all that easy. At least if you try to do it right away.
"The challenge is that it's an ecosystem," Datta said. "You have to take that 100 Gbit/s and connect it to something."
Oh yeah, that problem. Ethernet gear is only beginning to sprout 100-Gbit/s interfaces. Commercial availability probably won't start in earnest until mid-2010, and the interfaces will be expensive at first. (See Hitachi Preps P-OTS Box, Huawei's Doing 100-Gig, Too, AlcaLu Readies 100GigE Cards , and Juniper Claims 100-Gig First.)
"As soon as that picture comes together, I think there'll be early movers that'll use it," Datta said.
Wednesday, November 18, 2009
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Sunday, November 15, 2009
The rise and fall of Nortel,
Take, for instance, the company's Metro Ethernet Networks unit that Ciena is looking to buy for more than $500 million. Metro Ethernet Networks, which generated $1.36 billion in revenue for Nortel in 2008, has deployed an estimated 430,000 optical nodes to customers in 65 countries. Additionally, the Dell'Oro Group research firm found that Nortel topped its competitors in shipments of 40Gbps equipment and that it had an estimated 32% market share of 40Gbps equipment at the end of 2008. On top of all this, Nortel has a strategic partnership with AT&T, meaning that anyone who purchases the Metro Ethernet Networks will have access to the second-largest carrier in the United States.
"Nortel is very strong in terms of Layer-1 transport technology for 40G and 100G networking," says Andrew Schmitt, an analyst at Infonetics Research. "I've surveyed carriers and Nortel comes out as the leader in both 40G and 100G technology by a wide margin."
Friday, November 13, 2009
NEW YORK -- Ethernet Expo Americas 2009 -- AT&T Inc. (NYSE: T) is moving as quickly as it can to push Ethernet into every part of its network, including the wireless portion that is currently struggling to keep up with the bandwidth demands of smartphones, Margaret Chiosi, executive director of Optics & Ethernet Service Development for AT&T Research Labs , said here today.
"Ethernet is it; it has won Layer 2," Chiosi said, after reciting a list of networking types that once vied for that position. "We are trying to get it out the door as soon as possible. Our DSLAMs are going Ethernet; the U-verse backbone is IP over Ethernet. On the wireless side, we are having capacity problems, but besides migrating to LTE, Ethernet access for backhaul is it. The challenge is how to get it out quickly."
All of that is in addition to the Ethernet wide area network and metro area network services that AT&T uses and sells, Chiosi said. "Our routers have Ethernet, and Ethernet is the interface to the hosting centers as we get into cloud computing."
The challenge now is to make Ethernet services "available at more locations with more customer choices," Chiosi said. "Ethernet is recession-proof."
While AT&T's vendors might have been concerned that an economic downturn would slow Ethernet sales, AT&T customers were actually asking for more of the technology, Chiosi said.
"Their view was that they had to get Ethernet out even faster, because this is the technology to contain your costs and ride that bandwidth wave -- getting more bandwidth for less" with application flexibility, scalability, and Service Level Agreements, she said. "Our goal as we try to meet all these demands is to expand the choices we offer our customers."
Chiosi also called on vendors to help AT&T address the challenge of exponential growth in bandwidth demands, while remembering that cost cannot also be exponential. "We are putting in an infrastructure that is going to be 100 Gigabit-capable, and to do that, we are squeezing as much as we can out of fiber that is in place," she said.
Monday, November 9, 2009
It looks like 100 GbE (Gigabit Ethernet) is coming to market fast (pun intended).
Qwest (NYSE:Q) announced this week that they are now beginning a build-out of 100 GbE that will continue through 2010. From a networking gear perspective, Qwest is using the Alcatel-Lucent's recently announced 100 GbE services card, that will plug into the ALU 7750 Service Router and 7450 Ethernet Service Switch.
Financial terms of the deal have not been publicly disclosed.
100 GbE is 10 times faster than the current top-end of Ethernet at 10 GbE, which is common in many carrier networks. Less common is OC-768 which delivers 40 Gbps and according to most of the carriers I talk too, is more expensive than aggregating 4 x 10 GbE links.
That's one of the promises of 100 GbE that I've heard from multiple vendors including Alcatel-Lucent, namely that 100 GbE will be more cost effective than OC-768.
With the current state of the economy, costs are obviously a concern, but carriers still need to grow their networks just to keep up with demand.
"Internet traffic keeps growing, however service providers need to make money," Michael Howard, principal analyst, carrier and data center networks, Infonetics Research said in a statement. "For this, they not only need higher speeds and capacities, they need service flexibility at the same time. We're encouraged to see Qwest integrate Alcatel-Lucent's 100 Gigabit Ethernet with services enablement for the edge and the metro, which also serves as high-speed transport in the core."
Qwest won't be the only carrier with 100 GbE links in 2010. Comcast has announced trials in which I've seen Nortel, Cisco and Juniper participate.
Other big networks are also moving to 100 GbE. The New York Stock Exchange (NYSE) is working with Cienna on 100 GbE. The U.S Department of Energy recently announced it was getting $62 million in stimulus funding to roll out 100 GbE.
2010 sure is looking like a big year for 100 GbE.
Thursday, November 5, 2009
Recently, the industry has been pondering whether the next big leap for Ethernet should be 400Gbps or 1Tbps.
The conversation probably feels a little familiar. In the last go-round, the industry split between advocates for 40Gbps and those for 100Gbps. In the end, the IEEE worked on standards for both speeds of Ethernet in parallel, at the same time. Those standards are expected to ratify next year.
At the Ethernet Alliance’s recent pow-wow on the next steps for Ethernet technology, Chris Cole of Finisar advocated using 16 links running at 25Gbps each to get to 400Gbps. Some others have indicated that 20Gbps links would be the way to go.
At the same event, Facebook stood up and said they’d like to see an effort get under way toward terabit-speed Ethernet, because the company is seeing some pressure in certain parts of its data centers, where the links are too constricting. Plus, the company is seeing such phenomenal growth in its traffic that if it extrapolates, it can see terabit Ethernet becoming a necessity.
I touched on terabit Ethernet a year and a half ago, when people were talking it up. At the time, the year 2015 was being thrown around as a possible timeframe for standardizing on the high-speed networking technology. But getting to a terabit per second may prove to be more difficult than getting to 400Gbps, and so we may see two separate efforts this time around, instead of the parallel work we saw in 40Gbps and 100Gbps.
Friday, October 30, 2009
Telstra Corp. (Pink Sheets: TLSYY) is the latest major network operator to conduct 100-Gbit/s optical transmission trials with equipment from Nortel Networks Ltd. 's Metro Ethernet Networks (MEN) division, which is currently up for sale.
And the Australian national carrier is claiming some world firsts from the tests. Telstra says it trialed 100-Gbit/s transmission over a continuous optical link between Sydney and Adelaide of 2,038 kilometers and tested 40-Gbit/s transmission across a 3,370 kilometer looped-back section of its fiber network between the two cities -- "the longest distances ever attempted," according to the carrier.
Both trials used Nortel DWDM gear to "enable unregenerated transmission on Telstra's underlying optical fibre infrastructure" during a two-week period in July.
The trials "demonstrate that our existing network is capable of transporting even larger amounts of network traffic without incurring the cost of major equipment and infrastructure upgrades," noted Michael Rocca, the carrier's Networks and Services Group managing director, in Telstra's news release. "Carriers the world over are looking for the next generation of transmission technology because customer bandwidth needs are quickly surpassing current limits."
The carrier noted it has experienced a tenfold increase in traffic on its major, intercity, long-haul routes, and plans to upgrade its Sydney-to-Melbourne link from 10 Gbit/s to 40 Gbit/s in the near future. Telstra notes that larger volumes of higher-quality online video and enterprise applications such as videoconferencing are two of the main drivers behind the need to increase network capacity.
Nortel's regional VP of Carrier Networks, Anthony McLachlan, took a swipe at Nortel's next-generation optical equipment rivals by noting that "Telstra has given us the opportunity to prove in a real network what others are only talking about."
The trial is another significant 100-Gbit/s reference for Nortel's MEN division, which has already engaged in multiple carrier trials in Europe and North America with operators of all sizes and types, including Verizon Communications Inc. (NYSE: VZ), cable operator Comcast Corp. (Nasdaq: CMCSA, CMCSK), Neos Networks , and SURFnet . (See Verizon Adds Nortel to Its 100G Club, Europe's Hot 100G Action, Banverket Picks Nortel 40/100G, Neos, Nortel Try 100G, SURFnet Lights Live 100G Path, and Comcast, Nortel Put 100G to the Test .)
The vendor has also had notable success with its 40-Gbit/s platform and is the market leader, according to Dell'Oro Group . (See Lightower Turns Up Nortel's 40G and Nortel Claims 40G Lead.)
Despite these successes, and the operating profits that it generates, Nortel's MEN division has failed to attract a buyer, though various companies are believed to have considered bidding. (See Tellabs CEO: We Don't Dig MEN and Who's Waving Their Wad at Nortel’s MEN?)
And among the companies linked to a potential move for Nortel's optical assets are some of those challenging Nortel in the race to land commercial 100-Gbit/s system orders. (See Ciena Sending 100GE Live, ADVA Demos 100G, Deutsche Telekom Trials 100G, Global Access Demos 100GigE, 100GigE Scorecard, and Huawei Touts 100 GigE.)
Monday, October 26, 2009
CHICAGO -- Supercomm 2009 -- The Metro Ethernet Forum (MEF) 's efforts on Ethernet peering is making progress, with key network-to-network interface (NNI) specifications possibly coming out in just a few months.
"We'll know more at the end of next week, but it could be February," says Kevin Vachon, the MEF's chief operating officer. ("Next week" refers to a scheduled MEF meeting the week of Oct. 26.)
The NNI is an important element in what the MEF is calling its Global Interconnect initiative. The idea is to provide a common framework for operators to put Ethernet services onto one another's networks, which helps improve the reach of those services.
That could lead to the creation of Ethernet peering points, exchanges similar to those that exist for Internet services. Equinix announced the first such Ethernet exchange earlier this month. (See Equinix Offers Global Ethernet Peering .)
Last October, MEF president Nan Chen started talking about Global Interconnect as the next phase in Carrier Ethernet development. Whether Chen himself is working on the concept with his CENX startup is still unknown (and come to think of it, he owes us a call back!). (See MEF Touts Phase 3, MEF Peers Consider Ethernet Exchange, and Nan Chen Takes CENX Route.)
The MEF wants to work quickly here, because carriers are working up their own network-interface agreements every time they want their traffic to ride on another provider's network. The MEF doesn't want too many of these proprietary deals to stack up before it comes out with a standard NNI, Vachon says.
On the other hand, Global Interconnect requires more than just a quick-sketch standard.
"What we didn't want to do is just throw more specifications at the industry," Vachon says. "We want to go to the industry with a plan: Here are our recommendations for interconnect; here are the pieces you need to take under consideration."
Another facet of the MEF's Global Interconnect initiative is the defining of Ethernet classes of service. That was accomplished on a basic level with the recently created MEF 23 standard for three classes of service; the next step will be to assign values to various classes, making it easier to apply them to wholesaling deals.
A third element to Global Interconnect would be carrier-grade operations, administration, and management (OAM), which the MEF has also worked on.