RE: Why 53-bytes for a cell & AL GORE

2000-11-25 Thread Chuck Larrieu
s. Howard? - Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of SI cable news Sent: Sunday, November 26, 2000 10:15 AM To: [EMAIL PROTECTED] Subject: Re: Why 53-bytes for a cell & AL GORE The agreement for a 53 byte cell is the worst m

Re: Why 53-bytes for a cell & AL GORE

2000-11-25 Thread SI cable news
gt; rahul. > > > > > ---------------------- -- > > © 1984-2000 TRA. All Rights Reserved. > - Original Message - > From: "Circusnuts" <[EMAIL PROTECTED]> > To: "themitmo" <[EMAIL PROTEC

Re: Why 53-bytes for a cell & AL GORE

2000-10-21 Thread Rahul Kachalia
l. © 1984-2000 TRA. All Rights Reserved. - Original Message - From: "Circusnuts" <[EMAIL PROTECTED]> To: "themitmo" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Saturd

Re: Why 53-bytes for a cell & AL GORE

2000-10-21 Thread Circusnuts
D]>; <[EMAIL PROTECTED]> Sent: Friday, October 20, 2000 8:08 AM Subject: Re: Why 53-bytes for a cell? > Because back when they were creating an ATM standard > from stratch it had to be some number. I believe there > were two factions (US vs. European) on what size the > payloa

Re: Why 53-bytes for a cell?

2000-10-20 Thread Brian Lodwick
I read a few of the entries to answer your question and I disagree with them so far. I have read that in fact there were 2 committees involved with the established cell size, and it was in fact a compromise. I wished I had my book Computer Networks (which is a wonderful book) cause then I would

RE: Why 53-bytes for a cell?

2000-10-20 Thread Nguyen_Trang
Compromised between Europe and US. As I recalled from ATM/UNI forum, Europe wanted 64 US wanted 32, they compromised at 48 (in between) + 5 for control. > -Original Message- > From: Andy Xing [mailto:[EMAIL PROTECTED]] > Sent: Friday, October 20, 2000 3:59 AM > To: [EMAIL PROTECTED] >

Re: Why 53-bytes for a cell? (Laymans terms)

2000-10-20 Thread NeoLink2000
If you are asking for a reason, I may be able to break it down to a basic. One of the reasons ATM uses a fixed cell size (53-bytes) is to make it a little faster. Lets look at it through the OSI model. When data travels down through the OSI there may be various size differences in diff

Re: Why 53-bytes for a cell?

2000-10-20 Thread Dale Holmes
Ask the French... >From: "Andy Xing" <[EMAIL PROTECTED]> >Reply-To: "Andy Xing" <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Why 53-bytes for a cell? >Date: Fri, 20 Oct 2000 15:58:33 +0800 > >Thanks > > >_ >FAQ, list archives, and subscription info: >http

Re: Why 53-bytes for a cell?

2000-10-20 Thread Randy Carlson
This is my understanding as well. This was a pure political decision that led to a pretty horrible technical result. The systems we work with like powers of 2. They woek ok with other composites. They DO NOT like primes. 53 is a prime number and this must cause no end of headaches to someone in

Re: Why 53-bytes for a cell?

2000-10-20 Thread Jose Luis De Abreu
I read in one of the books I have used there were not an specific reason to define exactly a 53 Bytes cell in ATM, it was really an agreement between the two leaders developing ATM architecture (USA and Europe)where one defined a cell smaller than 50 bytes (sorry, but I do not remember the exact s

Re: Why 53-bytes for a cell?

2000-10-20 Thread Joe Wong
It is due to political reason. Politic again. One party want 64 byte for the payload. Another party want 32 byte for the payload. They can't settle so they choose the middle. (32+64)/2 = 48 byte. "Frank Kim" <[EMAIL PROTECTED]> ? [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > You must be refer

RE: Why 53-bytes for a cell?

2000-10-20 Thread William E Gragido
Because when they said so thats why >;-(' > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Andy Xing > Sent: Friday, October 20, 2000 2:59 AM > To: [EMAIL PROTECTED] > Subject: Why 53-bytes for a cell? > > > Thanks > > > _

Re: Why 53-bytes for a cell?

2000-10-20 Thread themitmo
Because back when they were creating an ATM standard from stratch it had to be some number. I believe there were two factions (US vs. European) on what size the payload area should be. 48 bytes turned out to be the compromise between speed and size. --- Andy Xing <[EMAIL PROTECTED]> wrote: > Than

Re: Why 53-bytes for a cell?

2000-10-20 Thread Nick Tucker
>You must be refering to ATM. The reason it's 53 bytes in a cell because >the first 5 bytes are used for cell-header information; the other 48 bytes >contain the payload, which is data. I think his question was directed as to why those specific mechanics, rather than the mechanics themselves. A

Re: Why 53-bytes for a cell? (Laymans terms)

2000-10-20 Thread NeoLink2000
In a message dated 10/20/00 4:54:34 AM Eastern Daylight Time, [EMAIL PROTECTED] writes: > You must be refering to ATM. The reason it's 53 bytes in a cell because > the first 5 bytes are used for cell-header information; the other 48 bytes > contain the payload, which is data. > > > Cheers, >

Re: Why 53-bytes for a cell?

2000-10-20 Thread Frank Kim
You must be refering to ATM. The reason it's 53 bytes in a cell because the first 5 bytes are used for cell-header information; the other 48 bytes contain the payload, which is data. Cheers, Frank Kim, MCSE, CCNA Comegetus Technologies Phone: 858-831-0296 Fax: 858-831-0687 Email: [EMAIL PROT

RE: Why 53-bytes for a cell?

2000-10-20 Thread McCallum, Robert
It was a compromise. Data people wanted no less than 128bytes and Voice people wanted no more than 32 bytes. SO a compromise was reached. -Original Message- From: Andy Xing [mailto:[EMAIL PROTECTED]] Sent: 20 October 2000 08:59 To: [EMAIL PROTECTED] Subject: Why 53-bytes for a cell?