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What's Holding Back 2 Way Video?
An archaic, unweildy communications standard, for one
by Karl Bode Monday 01-Apr-2002 tags: Video · bandwidth
An interesting read at ZDNetUK that details the pitfalls in two way video over broadband connections (we crude westerners call it "video-conferencing"), with the author delivering most of his venom towards the commonly used H.323 standard, which he labels as an "enormously baroque banyan of a standard". This sentiment is so pervasive partially because H.323 requests that 98 percent of the 65,000 odd ports through your firewall be open for it to work effectively.

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Penguins
Have You Played Atari Today?

join:2001-12-01
Cleveland, OH

Only one port...

When are these protocol designers going to learn that all you need just ONE PORT.

You can make a (nearly) unlimited number of connections to the same port, there is NO NEED to use more than one port.

If you have to differentiate between various things just send a few bytes upon connecting to indicate the service you need.
pierce2

join:1999-09-22
Santa Cruz, CA

Re: Only one port...

you *don't* need to open all the ports for H.323, your NAT software just needs to monitor the control session, and dynamically setup and tear down UDP ports on demand. This is done in several products such as SonicWall SOHO routers. Its not more commonly done because the h.323 control session is rather complex.

to accept *INCOMING* H323 connections, you do need to port forward the control session as this is a peer to peer protocol. This is where life gets kind of complex for *ANY* NAT system, if you have several users onsite behind the NAT, how does the server decide where to forward inbound connections ?

dubfanatic8

join:2000-07-16
Vancouver, BC

Here's another reason...

When are US broadband providers going to realize that 128k upload is not enough? ISPs in other countries (and OOL) provide connections with more upload bandwidth for almost the same price!

gomer1701ems

join:2001-08-23
Minneapolis, MN

Re: Here's another reason...

I thought the reason for the 128 upload cap was to prevent people from running mega huge servers. Five bucks says that if consumers demand a bigger upload cap, ISPs will balk at it, citing the "no server" clause of most TOSs.
--
Sprint DSL saved me from AT&T Broadband......

shawnbttu

join:2002-02-20
Arlington, TX

Re: Here's another reason...

Actually Sweden provides 10mbit up and down for 19 bucks a month. And Swedish Universities are upgrading to 10 gigspersec in November. GO figure.

nc1165

join:2001-04-10
Delray Beach, FL

Re: Here's another reason...

said by shawnbttu:
Actually Sweden provides 10mbit up and down for 19 bucks a month. And Swedish Universities are upgrading to 10 gigspersec in November. GO figure.
Be careful. You might get labeled a communist by some of the posters here.
--
If my enemy cuts me, I will drown him in my own blood.

gomer1701ems

join:2001-08-23
Minneapolis, MN
said by shawnbttu:
Actually Sweden provides 10mbit up and down for 19 bucks a month. And Swedish Universities are upgrading to 10 gigspersec in November. GO figure.
No kidding? When are we going to see something like that? Is that 10 mbit service one of those things that you have to be within like 150 ft. of the CO?
--
Sprint DSL saved me from AT&T Broadband......

nc1165

join:2001-04-10
Delray Beach, FL

Re: Here's another reason...

said by gomer1701ems:
said by shawnbttu:
Actually Sweden provides 10mbit up and down for 19 bucks a month. And Swedish Universities are upgrading to 10 gigspersec in November. GO figure.
No kidding? When are we going to see something like that? Is that 10 mbit service one of those things that you have to be within like 150 ft. of the CO?

No. You just have to live in a place like Sveden vhere taxes are used to support the public infrastructure. The taxes are a little higher, so it's probably not a big deal for somebody living in Minesooota, yah? The only thing I get are sub-standard schools and bad drinking water.

(Suddenly, I'm hungry for some lefsa.)
--
If my enemy cuts me, I will drown him in my own blood.

Yowzaaah
Ours Go To Eleven

join:2000-12-14
DamnFlat, OH

Re: Here's another reason...

forget the lefsa go for the lutefisk!! MMMMMMM...hot fish jelly!

gomer1701ems

join:2001-08-23
Minneapolis, MN
said by nc1165:
The taxes are a little higher, so it's probably not a big deal for somebody living in Minesooota, yah?
Yah sure, you betcha!

P.S. The casserole is in da oven!
--
Sprint DSL saved me from AT&T Broadband......
marcw

join:2001-05-18
Saint Paul, MN

Re: Here's another reason...

Imposter!!

If you really were from MN as you claim, you'd know that it's called a "hot dish", not a casserole don'cha know?


gomer1701ems

join:2001-08-23
Minneapolis, MN

Re: Here's another reason...

said by marcw:
Imposter!!

If you really were from MN as you claim, you'd know that it's called a "hot dish", not a casserole don'cha know?


Ah, point well taken. To be honest, I had forgotten which word was indiginious to Minnesota.

I should point out that when I use either word with people not from Minnesota, they don't know the meaning to either one.

And yes, I really am from Minnesota.
--
Sprint DSL saved me from AT&T Broadband......

MortySnerd

join:2001-07-26
Mclean, VA

Is this country wide or only in some specific neighborhoods?

I see statements that European broadband is far ahead of the US all the time. I'm sure that to some extent, this is true. But I have friends in Germany that have the same horror stories of poor speed and lack of availability that we in the US have. I've found that a lot of the European 100Mb/100Mb $30/month setups are for specialized neighborhoods and aren't available nationwide.
[text was edited by author 2002-04-01 15:56:22]

dvd536
as Mr. Pink as they come
Premium
join:2001-04-27
Phoenix, AZ
kudos:4
said by shawnbttu:
Actually Sweden provides 10mbit up and down for 19 bucks a month. And Swedish Universities are upgrading to 10 gigspersec in November. GO figure.
Great if you want to chat with a neighbor, but over the net speeds are pretty pathetic out of their network.

gomer1701ems

join:2001-08-23
Minneapolis, MN

Re: Here's another reason...

said by dvd536:
Great if you want to chat with a neighbor, but over the net speeds are pretty pathetic out of their network.
Good point, but take it one step further: Think about how awesome it would be if someone on that kind of network would set up some sort of DivX/MP3 server. You'd get what you need lightning fast!
--
Sprint DSL saved me from AT&T Broadband......

djrobx

join:2000-05-31
Valencia, CA
kudos:1
Reviews:
·Verizon Wireless..
·RoadRunner Cable
·AT&T U-Verse
·VOIPo
·PHONE POWER
OOL is awesome, of course. But I think Road Runner has it "just right" with their 2200/384 service. And cable is supposedly the technology with the weaker upstream. I see that SBC/ASI territories are starting to offer 256k upstream options. It's a little pricey (I can pay DSLExtreme $65/month for 1500/256) but definitely a step in the right direction.

As for videoconferencing, horrid firewall unfriendly protocol aside; how many people actually want to videoconference? I'd rather not have to dress up to answer the phone. Voice is sufficient for most things, but that's just me.

-- Rob

morbo
Complete Your Transaction

join:2002-01-22
00000

Re: Here's another reason...

said by djrobx:
As for videoconferencing, horrid firewall unfriendly protocol aside; how many people actually want to videoconference? I'd rather not have to dress up to answer the phone. Voice is sufficient for most things, but that's just me.
-- Rob
videoconferencing is how i get to see my family and friends that are 500 and 800 miles away)other than the few times a year when i visit). voice alone just doesn't cut it.
DonLibesBad

join:1999-12-10
Potomac, MD

Re: Here's another reason...

said by shatty925:
videoconferencing is how i get to see my family and friends that are 500 and 800 miles away)other than the few times a year when i visit). voice alone just doesn't cut it.
I agree. Videoconferencing among a group of distributed family members could've been the killer app that residential broadband was waiting for. Well, that and video on demand. Both have been spectacular and embarrassing failures.

The only remaining app for residential broadband is porn, making this fiasco even more embarrassing.

parasonic
I Am Not A Bot

join:2002-03-29
Atlanta, GA
I wanted to videoconference when I tried to get DSL in 1999. There wasn't enough upstream on @homo to do anything near 'picture perfect' (or more than a few low-res fps for that matter) when I got my cable.
--
"We will add your biological and technological distinctiveness to our own. Your culture will adapt to service us. Resistance is futile. We are the Borg."

gomer1701ems

join:2001-08-23
Minneapolis, MN

Re: Here's another reason...

Nice sig. Do you work for Microsoft or the RIAA?


--
Sprint DSL saved me from AT&T Broadband......
claudeo

join:2000-02-23
Redmond, WA

I would use 2 way video

...but this business of opening all ports just in case one of them is the one that will be chosen at random is utter nonsense. This part of the H.323 standard is basically crap that dates back to when nobody thought seriously about the possibility that a line pair might be used for more than one purpose at a time--let alone a network connection.
The bandwidth is not so much an issue--improved compression methods and faster processors can give a fairly good adaptive rendering quality (see eyeball.com, for example). Security is.

BrianDamage
We Are The Hounds From Hell
Premium
join:2001-08-14
Rowlett, TX

Re: I would use 2 way video

It would be much more useful and popular if there was not so much resistance to it behind the scenes.
As long as the big players get to make all of the decisions about what standards become standards, then monolithic, dinosaurish protocols like this one will dominate things.
--
We've got our eye on the firmaments, our hand on the armaments, our heads full of arguments, and words for our monuments.....
DonLibesBad

join:1999-12-10
Potomac, MD

more than security

said by claudeo:
The bandwidth is not so much an issue--improved compression methods and faster processors can give a fairly good adaptive rendering quality (see eyeball.com, for example). Security is.
It's more than security. I tried videoconferencing a while back before we were all using firewalls and we STILL couldn't get the software to work together. We tried everything that was out there. (And the problem with Netmeeting specifically was that it wouldn't run on a Mac AT ALL!)

BrianDamage
We Are The Hounds From Hell
Premium
join:2001-08-14
Rowlett, TX

Re: more than security

That would probably be because Netmeeting is a Microsoft product.
You know Gates.
bodysurf

join:2002-01-23
Placentia, CA

FAST UPLOADS

What's Holding Back 2 Way Video?

The scarcity and expense of IP connectivity with FAST UPLOAD speeds. Providers need to get off their arse and start laying FTTH or DSDN if they want this to happen and get the US out of the "dark ages". Providers need to get their hand out of the sand with the thought that people don't need fast upload speeds, just fast download ones.

mags2
Agent Provocateur

join:2001-07-19
SoCal

Re: FAST UPLOADS

said by bodysurf:
Providers need to get their hand out of the sand...
Dontcha mean head outta the sand?
--
If ignorance is bliss, why aren't more people happy? -T.Jefferson

Penguins
Have You Played Atari Today?

join:2001-12-01
Cleveland, OH

Re: FAST UPLOADS

said by mags2:
said by bodysurf:
Providers need to get their hand out of the sand...
Dontcha mean head outta the sand?

I think their heads are uh... elsewhere.

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