Netwatcher March, 2001 —Volume 19.3

Copyright © 2001, CIMI Corporation, Voorhees, NJ, USA. All rights reserved. This issue may be printed or stored in Web format for personal, non-commercial, use, provided that the entire issue including this copyright notice is reproduced and included. Portions of this issue may be quoted, printed, or stored providing that the subject portion is annotated with the issue identification above, and is attributed to the copyrighted material of CIMI Corporation. Other publication, reproduction, electronic storage or retrieval of this material, in whole or in part, without the express written consent of CIMI Corporation, is prohibited.


This section is not provided in this month's newsletter.  Our next Market Area Focus will be published in the June issue, and will address new-age voice technology.  Is it dead, or ready to take off?  Remember, this section is always reserved for subscribers.


The continued slide in the technology stocks probably isn’t making this a happy spring for anyone in our industry, but all is not lost (yet).  The current slump has many causes, but one reason it’s sooo deep is that companies are dumping all their bad news at once to prepare for a fresh start.  For CFOs who have been trying to keep up with inflated growth estimates, the “recession” is an opportunity to recognize the inevitable shortfalls and blame macro-economics.  We expect the market to whipsaw around its current price levels, but the bottom will be reached at the early end of our May-to-August forecast, as we now see it.

The question will then be how long we’ll stay at or near bottom, of course.  Recognition of the need for significant regulatory reform seems to be broadening in the financial markets and among analysts and editors, which is good.  A Barrons article on March 12th pointed out some of the reasons we hadn’t had regulatory reform in the last two years, and weighed in favor of such reform for the current session.  A think-tank review of the performance of the telecom act (http://www.newmillenniumresearch.org) referenced in Network World’s new Vortex.net newsletter contains a number of short papers that all seem to conclude that additional tweaking (at the very least) of the Telecom act is essential.

Congress doesn’t seem to be moving, though.  As we predicted in our December issue, Washington is preoccupied with other issues this spring, and there doesn’t seem to be any rush to get any revision to the Telecom act introduced.  The 106th Congress version of the bill (S.2902) has not been resubmitted, and we believe that significant revisions to the old version will be introduced before it is even presented for a vote.  Thus, we are probably looking at late in the 3rd quarter at best before passage could be expected.

The nature of the regulatory changes made will decide the way the market moves.  So far, we can see the following possibilities:

·         Congress would fail to move at all, or move on a very long (2 year) timeline.  In this case, the FCC’s decision to expedite RBOC admission into the long-distance markets would have the effect of shifting RBOC priorities to voice services.  This is because both voice and data infrastructure would be subject to wholesaling and unbundling, but less incremental voice investment would be required to enter long-distance competition, and the revenue stream is more provable in the near term.

·         Congress would move to restructure the Telecom Act in both the voice and data sense, aimed primarily at meeting the demands of AT&T, Sprint, and WorldCom (using the dying CLECs as straw men) to fetter the RBOCs further.  This would have the effect of suspending the entire market, propping up the IXCs for a couple of years, but at the expense of developing a vital industry.

·         Congress would move to exempt data services from regulation under the Act, in a way that simply codifies the FCC’s “separate advanced services subsidiary” and “packet exemption” rules into law (circumventing the Federal Court reversal of the first, and challenges to the second).  This would restore the industry balance to where it was in June of 2000, when the RBOCs were promoting fast DSL build-out.

·         Congress would move to exempt data services from all unbundling and wholesaling, without need for structural separation.  This is the thrust of the S.2902 framework, and it would essentially open RBOCs to exploit data services without any infrastructure or service sharing.

We think that the first and last of these options are the least likely, but not to be ruled out.  The middle two reflect how lobbying influence might be balanced in the current administration.  In the past, the Republicans have generally favored the RBOC position, which would make the third option more likely.  However, a complete rethinking of the Telecom Act is not out of the question; with campaign reform possible, parties might be susceptible to lobbying in the near term to fill their coffers with bucks before the tap is turned off.

The big question here is the extent to which any changes in regulatory posture would protect RBOC investment in data infrastructure, including DSL access.  The more the protection, the more likely that investment balance would shift into the data space.  Without protection, the fact that the RBOCs are already fairly well built out in voice terms and have little data networking might induce them to focus on competing for IXC voice customers, where better ROI (arising from the lower incremental investment needed for voice) might be obtained.

Another development in this space may influence the congressional agenda.  The Pennsylvania PUC has, for over a year, been responding to IXC lobbying of its own to demand that Verizon break itself up into multiple companies (wholesale and retail) within Pennsylvania as a condition of offering long-distance services.  Here, the IXCs clearly have control of the process, and the question is whether Verizon will bow to the pressure, appeal to the FCC to assert primary jurisdiction, or resist in court.

The RBOCs have long believed that the TELRIC pricing for wholesale services and the Universal Services subsidies were insufficient to recover actual cost, and that the result was that their retail profits in part subsidized their competitors.  Some RBOCs, at least, saw this kind of separation as a logical response to the regulatory trends—a defense against their being used to prop up the CLECs.  That an RBOC would be forced to do it as a so-called pro-competitive step is a reflection of how the IXCs have used the CLECs as pawns in their own game.  At this stage in the market, a breakup of this nature would be singularly dumb, and have no possible outcome positive to the actual consumer.  PUCs, however, are even less enlightened than Congress in many cases, and it’s not impossible that this issue will be decided on the question of whether Verizon’s being forced to break itself up in Pennsylvania would have multi-state impact and thus be rightfully an FCC issue.

We think that the Pennsylvania case will proceed based on a combination of Verizon’s interest and those of the new FCC chairman, Powell.  If Verizon thinks that it can gain some benefit from the wholesale/retail split, the FCC may sit back based on its “free market” commitments and let nature take its course.  If they don’t like separation and Pennsylvania moves to break them up anyway, that same free market stance may deter Powell from stepping in.

Breaking up RBOCs would be a monumental business task, and one that would preoccupy them for several years.  If that happens, we can be reasonably sure that they’d make no major infrastructure or service commitments during the period of change.

What all this adds up to is that industry pressure is building on the regulators, but the sins of neglect we’ve sowed in the past are also coming to roost on us.  If pressure builds slowly, it may be that some of the old threads of manipulation (like the PA-PUC) will bite us before we have a chance to pass legislation that addresses the problems.  We continue to believe that there will be some reform later this year, but we must admit that the progress so far is alarmingly slow.

The stock market responded poorly to the Fed’s half-percent March rate cut.  That reflects an unfortunate but probably inevitable truth—the stock market wants another wave of hype and nonsense and not a real recovery, because tangible results take too long.  We believe that the Fed has made a decision (reflected in Greenspan’s comments about the over-hyped nature of the market back in 1Q00) that they would not intervene to prop up an equity market that was out of control.  We believe that policy will continue in force, and that it will be the best policy in the long term.  However, it will insure that networking will have to earn its way back into investors’ hearts.  That’s why it is so important that we address the regulatory problems.

 


This material is edited for Web publication; critical market statistics are removed.  The full document is reserved for our newsletter subscribers.

While the prospects for DSL empowerment are tottering in a regulatory sense, cable modems seem to be on a regulatory fast track.  While the cable TV industry consists of thousands of separate cable systems, most subscribers are already served by Multiple System Operators (MSOs) who run collections of systems.  In the past, FCC rulings have limited the size of the MSOs, but a recent Federal courts decision to overturn the FCC’s restrictions on cable company consolidation seems likely to promote development of cable supergiants, each with the power to service tens of millions of users.  That makes cable modem technology second on our list of important access options.

Cable deserved a high position before, in the view of many industry observers.  Cable infrastructure, like phone infrastructure, passes nearly 95% of the credible broadband opportunity in the US, and a slightly lower percentage in the other industrial centers of the Pacific and EU.  Based on a combination of fiber and CATV cable, the plant is reasonably well suited for delivery of residential and some business services.  Arguably, it could be made to be more suitable through incremental investment of magnitude similar to that required to create universal high-speed DSL.

One factor that’s held cable back is its generally low level of credibility.  While cable companies have made great strides in reliability over the past six years (the average consumer reports a cable outage once each 16 days today, versus once each 6 days in 1995), their performance doesn’t even come close to that of the phone companies.  Consumers cannot provide any reliable estimate for the last time they had a phone failure.  This credibility gap versus their major competitor forces cable companies to focus on home data applications for their cable modems, because businesses are more critical of their access networks.  This, in turn, has tended to keep the cable companies in the low-margin segment of the market.

The regulatory shift that might enable a massing up of cable companies may provide an answer to this problem of credibility, since most in the industry feel that capital strength is the basis for developing a reliable cable network, and subscriber mass is the only way to develop capital strength.  FCC limits on the size of cable companies, in subscriber terms, clearly limits their ability to build their businesses and develop deep financial pockets from which to disburse funds for modernization.

But the cable players aren’t without their problems.  With relaxation on the restrictions on cable company size is likely to come increased regulation of their behavior.  Nobody (even the Republicans) want a monopolistic environment developing in the cable industry, particularly when consumers already feel they’re being gouged by cable players in rates for basic and advanced services.  In addition, cable companies must work out of the low-margin Internet game if they are to stand as equals to the phone players.  It won’t be easy, and both cable infrastructure topology and basic cable modem technology have their own unique plus-and-minus contributions to make to the service credibility process.

Cable Modem Service Technology and Topology

A simple cable distribution network consists of a CATV copper trunk or “run”, to which a series of individual subscribers are connected via taps.  Each tap can be connected to a home termination, which could be a cable-ready TV, a set-top box, or a cable modem.  Since the basic topology is one of a shared, multi-drop, link, multiple home terminations can be supported per subscriber—and almost always are.

This simple structure has major limitations in terms of distance, number of customers, and total bandwidth available.  The competition posed by the satellite providers of TV service would, even without cable data applications, have tended to drive providers toward a hybrid fiber-coax (HFC) architecture.  Most also believe that HFC is essential in providing higher reliability and supporting lower craft costs.

HFC cable networks consist of a head-end location where long-haul networks deliver services to the cable provider, and a distribution network that gets those services connected to the customers.  The distribution network begins with a fiber system that links the head-end to a series of fiber nodes, each of which serves a copper-based customer delivery community. 

Cable data is supported over this infrastructure based on a set of standards that are generally homogeneous worldwide, called DOCSIS (Data Over Cable Service Interface Specification).  DOCSIS version 1.1 is the “current” version, but most cable modems today support the basic 1.0 specification.  DOCSIS defines communications between a Cable Modem Termination System (CMTS) master and a series of cable modems.

DOCSIS is a four-layer architecture, with the lowest layer being the physical modulation layer, the next being the information format and transmission convergence layer, the third the media access layer, and the last the data link encryption layer.  Applications are layered on top of these layers, so Internet access would involve adding the IP layer plus TCP, UDP, and whatever other protocols were used.  We’re not going to get into the dirt of the lower layers for this piece; refer to any of a zillion works on DOCSIS for that. We do note that there are multiple modulation layers possible, and that two (the US and the EU) are already in use.

The information format and transmission convergence layer of DOCSIS is based on MPEG-2, a protocol that allows video, voice, and data to be sent independently.  MPEG-2 is baed on synchronized 188-byte frames or packets, and each MPEG-2 packet has a program ID (PID) that identifies the information application or target device.  A standard PID is assigned to the cable modem application, and so data flows on that PID only.  When a cable modem is syncing up, it’s searching for a channel on which an MPEG-2 flow is found having the CM PID value.  The modem must then determine if the channel parameters for that particular channel match its capabilities, and continue searching until one is found.  It them retrieves the control parameters for that particular channel, and sets itself up as a member of that community.

The return path on a DOCSIS system is based on both TDMA and FDMA.  FDMA allocates modems to return path channels, and TDMA slots modems who compete for a single channel into mini-slots (16 to 128 bytes long).  These slots can be assigned to modems, groups of modems, or just stuffed into a pool for contention.  The use of allocated mini-slots reduces collisions and retransmissions, and regularizes performance in the access network.  Return path bandwidth is based n a bunch of modulation issues, but works out to be between 320 kbps and 10.24 Mbps, as determined by the CTMS control process.

The MAC layer of DOCSIS is responsible for access control, and it’s based on a request/grant exchange.  The CM requests permission to send a block of information, and the CMTS grants it by assigning a mini-slot in the TDMA return path.  This allows the CMTS to exert some control over the bandwidth allocation to each station, and makes the cable modem model more deterministic than a simple CSMA LAN would be, for example.

Above the MAC layer, there’s an encryption layer whose goal is to insure privacy of the data on the cable, given the intrinsic multidrop architecture of cable.  This isn’t a true security system, simply a mechanism to prevent (or reduce) data interception or eavesdropping.  Encryption takes place below the payload IP layer, but it is applied only after the IP parameter exchange and authentication process is completed.

DOCSIS 1.1 provides some functional extensions to the basic DOCSIS.  First and foremost, it includes a packet classification and flow management procedure that could be used to provide QoS management for traffic of various types that involve a single CM (remember, DOCSIS provided some traffic control between competing CMs before).  Support for MAC fragmentation of frames reduces the impact of serialization delay in long data packets on concurrent non-data traffic types.  The new version also includes a better encryption/privacy management system to reduce the risk of hacking (as opposed to simple eavesdropping) and support for efficient IP multicasting to multiple CMs (the old standard required duplicating the packets).

Cable Opportunity: The Business Model

Cable modems support more broadband Internet connections than DSL modems, and the regulatory-induced slowing of DSL deployment will probably insure that remains true through at least the first two or three quarters of this year.  Cable companies in some areas are promoting their offerings more aggressively, using discounts and other incentives to pull in prospects while DSL is on hold.  Some believe that this will give cable a big leg up on the phone companies.

Others, though, believe it’s a race to lose money.  As we’ve pointed out repeatedly, simple Internet service at any speed is not profitable in itself, based on the financial filings of the ISPs.  Access to an unprofitable service is also unprofitable.  For the cable industry, the success of cable data or cable anything (other than cable broadcast video and perhaps audio) is dependent on identifying and supporting a profitable business model beyond the Internet service model.  Can that happen?

How about voice?  Pundits say voice over cable is the next revolution, but the same pundits have been revolting (no pun, of course) for years in many diverse spaces and have yet to be right.  The cable companies have a number of serious problems in the voice space:

1.        Users have consistently been reluctant to trust cable companies with voice, especially the business and higher-end residential users whose expenditures for voice would necessarily make up most of the profit.  Our surveys have consistently shown that cable voice credibility is so low that discounts of 30% or more versus normal service pricing would be needed to overcome the barrier.

2.        Voice service return on capital for a new player is limited by both the strike price for service (see above) and the relatively high cost of voice infrastructure incremental to the basic video cable service plant.  We estimate that cable voice would return about half the necessary value to make it a viable business.

3.        Feature enhancement to voice services, while credible and demonstrably profitable doesn’t seem to be a priority with the equipment players.  It’s questionable whether a viable feature-driven voice offering could be deployed today based on available technology.

Content networking is the other play, and here the problems of the cable players may be even worse.  The primary difficulty is that the most credible near-term revenue stream in the content space comes from video on demand.  Not only does digital video have a very high bandwidth requirement (beyond, in our view, the capabilities of the currently deployed cable modem systems), it competes with the cable companies’ own broadcast video business.  Would they deploy a self-competing technology that effectively validated the video-over-DSL market for their RBOC archrivals?  Ha!

Perhaps the worst problem the cable people face, though, is the restructuring of their industry.  It appears that the Powell FCC has concluded that cable is the competition for DSL, or at least that the FCC policy of an open marketplace must apply even-handedly.  Combine this with the Federal Court decision that the FCC lacks the authority to limit the number of subscribers an MSO has, and you have the formula for industry consolidation.  Periods of consolidation are rarely periods of aggressive service and technology change.

Where, then, cable modems?  We think that if DSL deploys on a fairly large scale and validates public IP applications beyond the Internet, some of those applications (other than video on demand) will percolate over into the cable space and raise the ROI for the cable players.

A dead stop in DSL will tend to favor cable for a time, but ultimately either DSL will pick up or residential broadband will die back.  The cable players, in either case, could strand a substantial capital investment and let themselves open for increased pressure from satellite competitors in their core entertainment space.  Cable is symbiotic with DSL, more than competitive, folks.


This section of our newsletter presents the response of Canadian management pioneer Syndesis to our service management framework.  Sorry, but it's for subscribers only!


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