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Optical/IP

Lucent's LambdaUnite Busts Out

Lucent Technologies Inc. (NYSE: LU) today officially rolled out its high-end optical transport system, the LambdaUnite MultiService Switch (MSS), a box meant to aggregate and forward traffic across metro networks and on to the optical core. The news of the pending announcement was first reported last week in Light Reading (see Lucent Lights Up LambdaUnite), but the official release still held some surprises.

First off, it looks like Lucent's gotten wise to the need to demonstrate customer acceptance of its new products. The company headed off this morning's announcement with news that Deutsche Telekom AG (NYSE: DT), Germany's leading telecom supplier, has signed up to trial the LambdaUnite (see Germans Buy Lucent's LambdaUnite).

And that doesn't mean the PTT is tinkering with it in the lab. "Deutsche Telekom is certifying the LambdaUnite for field deployment. They plan to use it in their broadband transport network nationwide and in some global deployments," says Klaus Dechet, director of product management for LambdaUnite.

He says other customers worldwide also are trialing the box, but he can't divulge their identities yet.

Another surprise: The LambdaUnite is not based on the LambdaRouter or WaveStar Bandwidth Manager, as was supposed in some quarters (Light Reading included). Instead, the box, which combines the functions of a Sonet add/drop multiplexer and crossconnect, features its own ASICs (application-specific integrated circuits) in a new design.

"We have some common interfaces that appear on the Bandwidth Manager, but there are no electrical interfaces in the LambdaUnite. It's a completely new architecture, designed to really make use of the density of the system," Dechet maintains.

LambdaUnite is actually shipping -- yet another surprise, given the track record for big announcements these days. Still, it doesn't have all the features Lucent touted in its initial announcement this fall (see Lucent Unveils Product Lineup). The currently available box is an optical switch with an electrical core that packs 320 Gbit/s of capacity in a non-blocking matrix. It takes up a half-bay in a carrier's central office. It comes with gigabit Ethernet and 2.5- and 10-Gbit/s Sonet (Synchronous Optical NETwork) and SDH (Synchronous Digital Hierarchy) interfaces.

In three months, Lucent says it's going to add 40-Gbit/s, 155-Mbit/s, 622-Mbit/s, and 10-Gbit/s Ethernet connectivity. Prospective buyers will have to wait until the start of 2003, however, to get the full 1.28 Tbit/s capacity (two 320-Gbit/s units in a full bay) originally declared for the LambdaUnite.

Some of the most intriguing revelations about the new box, though, have to do with how Lucent's positioning it against the CoreDirector switch from Ciena Corp. (Nasdaq: CIEN), the market leader in this space.

On the face of it, Lucent has clearly attempted to match the CoreDirector's capabilities, albeit falling short in a couple of key areas.

Where CoreDirector offers full bay, 640-Gbit/s capacity today, LambdaUnite only has 320 Gbit/s in a half bay. CoreDirector grooms Sonet traffic to STS1 (51.8Mbit/s) increments, and it grooms SDH traffic to AU3, the European equivalent of STS1. LambdaUnite grooms Sonet STS1s, but in SDH networks the smallest increment groomed is VC4, a slightly less granular connection. CoreDirector features both ring and mesh restoral; LambdaUnite offers only ring.

But Lucent's done its homework overseas. Although it supports VC4 grooming, Dechet says that's sufficient to meet European demand today. "The North American market is different," he asserts. "VC4 is the push in Europe."

Dechet also claims to have a jump on ring restoral in SDH networks. Ciena admits it doesn't yet offer software that supports SNCP (Subnetwork Connnection Protection), a method of ring restoral used in SDH in Europe. Ciena says CoreDirector has the hardware in place to support SNCP, but the software will ship this spring. LambdaUnite offers this now.

LambdaUnite also features gigabit Ethernet interfaces today, whereas CoreDirector does not.

Clearly, Lucent's making a play to compete hardest against Ciena in Europe and other locations where SDH rules the metro core. And that may not be a bad approach, given widespread industry skepticism that Lucent can displace Ciena domestically.

In any event, analysts say, Lucent's got a hard row to hoe. "Lucent has a challenge ahead, as they're entering the market a bit late," says David Dunphy, senior analyst at Current Analysis. "Lucent has a great deal of catchup to play in addressing this segment. Support for meshed architectures is not available in this release, and Lucent still has a ways to go to put together its full ION solution. Ciena and Sycamore Networks Inc. [Nasdaq: SCMR] seem to be picking up traction with a different approach, and recently with more tier-one [carriers]."

— Mary Jander, Senior Editor, Light Reading
http://www.lightreading.com
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johnjohn 12/4/2012 | 11:00:41 PM
re: Lucent's LambdaUnite Busts Out don't forget the upgrade (in-service) to 640G per bay.
manoflalambda 12/4/2012 | 11:00:41 PM
re: Lucent's LambdaUnite Busts Out Where CoreDirector offers full bay, 640-Gbit/s capacity today, LambdaUnite only has 320 Gbit/s in a half bay.

Well.... (per the picture) you can do 640 per bay with 2 Unites... not one switch, but its all in the marketing eh?

Salute,
Manoflalambda
ivehadit 12/4/2012 | 11:00:41 PM
re: Lucent's LambdaUnite Busts Out mary,
if ciena is selling au3 mappings in europe, its not getting anywhere. the preferred mapping is au4. sounds like the coredirector is pretending to be an sdh box whereas it actually is sonet in disguise.
puddnhead_wilson 12/4/2012 | 11:00:40 PM
re: Lucent's LambdaUnite Busts Out >like the coredirector is pretending to be an sdh box whereas it actually is sonet in disguise.

err, yeah. let's just pretend you're right. tell me why the heck they offered $2b to acquire Cyras and K2?

This is funny, the knock on CIEN 18 mos ago is that they DIDN'T have SONET.
bubbleboybeet 12/4/2012 | 11:00:39 PM
re: Lucent's LambdaUnite Busts Out To start buying Lucent stock
ivehadit 12/4/2012 | 11:00:38 PM
re: Lucent's LambdaUnite Busts Out puddlehead,

answer the question, don't give me rhethoric.
is core director an au3 box or an au4 box?
Daveman 12/4/2012 | 11:00:36 PM
re: Lucent's LambdaUnite Busts Out I'm trying to get a handle on where this box will play and who the competition will be... Now the Cisco 15454, MetroOptics, Redback etc. don't seem to be directly competing because they are limited to max. 4F 10G applications or even to 2.5G line rates... This is probably where the DMX plays... right?

Didn't someone, I think Cyras announce OC768 interfaces at one time? Whatever happened to them and that box - the K2?
Belzebutt 12/4/2012 | 11:00:34 PM
re: Lucent's LambdaUnite Busts Out
answer the question, don't give me rhethoric.
is core director an au3 box or an au4 box?


Err... if you have AU-3 don't you automatically have AU-4? It's like saying a box support STS-1 but doesn't support STS-3, it doesn't make much sense.
optical_leaders 12/4/2012 | 11:00:33 PM
re: Lucent's LambdaUnite Busts Out Two different versions of VC3 (HO and LO) - in Europe grooming is at the LO layer - the HO layer uses a SONET mapping scheme.

LO - VC3-TU3-TUG3-VC4-AU4-STM-N
HO - HOVC3-TU3-AU3-AUG-STM-N

So, in answer to youy question - "if you have AU3 don't you automatically have AU4?" - answer is no!

Hence, i would believe that CoreDirector uses HO VC3 mapping if anything. Question is "can it do AU3/AU4 mapping?"
Litewave 12/4/2012 | 11:00:20 PM
re: Lucent's LambdaUnite Busts Out Author: ivehadit
...answer the question, don't give me rhethoric.
is core director an au3 box or an au4 box?


Lets assume for a minute the worst case - that the Core Director does not have AU4 path mapping.

Do you actually believe its can't be added at the drop of a hat? (ie. if anyone asks for it).

Don't waste your time on trivial pursuits my friend.
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