BitSurfer vs. BitSurfer Pro?

BitSurfer vs. BitSurfer Pro?

Post by Supin » Wed, 01 Nov 1995 04:00:00



Hello All,

Can someone please explain to me what the BitSurfer Pro gives you over the plain
BitSurfer?  One of the big differences I noticed was that the Pro supports
Multilink PPP, and the regular one doesn't.  But, they both claim to transfer
data at 128Kbps.  What, then, is the difference between Multilink PPP and BONDING
(which is the protocol that the regular BitSurfer supports)?

Also, from reading a bunch of the threads, I've gotten that there's a ~112Kbps
limitation on the serial port.  Does this limitation only apply to ports without
the 16550 UART?  Or, does it apply to any serial port?

TIA,
Supin

 
 
 

BitSurfer vs. BitSurfer Pro?

Post by Tim Y » Thu, 02 Nov 1995 04:00:00


Just log into www.motorola.com and you can get all the Bitsurfer info...

The limit applys to modems WITH 16550 chips, without it, the limit is more like
19.2k


>Hello All,

>Can someone please explain to me what the BitSurfer Pro gives you over the plain
>BitSurfer?  One of the big differences I noticed was that the Pro supports
>Multilink PPP, and the regular one doesn't.  But, they both claim to transfer
>data at 128Kbps.  What, then, is the difference between Multilink PPP and BONDING
>(which is the protocol that the regular BitSurfer supports)?

>Also, from reading a bunch of the threads, I've gotten that there's a ~112Kbps
>limitation on the serial port.  Does this limitation only apply to ports without
>the 16550 UART?  Or, does it apply to any serial port?

>TIA,
>Supin


 
 
 

BitSurfer vs. BitSurfer Pro?

Post by Tim Ju » Thu, 09 Nov 1995 04:00:00


: Hello All,

: Can someone please explain to me what the BitSurfer Pro gives you over the plain
: BitSurfer?  One of the big differences I noticed was that the Pro supports
: Multilink PPP, and the regular one doesn't.  But, they both claim to transfer
: data at 128Kbps.  What, then, is the difference between Multilink PPP and BONDING
: (which is the protocol that the regular BitSurfer supports)?

: Also, from reading a bunch of the threads, I've gotten that there's a ~112Kbps
: limitation on the serial port.  Does this limitation only apply to ports without
: the 16550 UART?  Or, does it apply to any serial port?

Normally that is the case but with some special high speed serial ports
you can push that limit higher. Cards like the Hayes ESP, the RocketCard,
and other cards that have CPUs on the serial card are very good at very
high speed serial comminucations like what you would do with the bitsurfr
or the Bitsurfr Pro.

As for the 128K BONDING and MPP questions. You can bond two 2Bs with the
Bitsurfr but you must have a device to call that supports BONDING also.
The problem is that most ISPs are using Ascend Pipeline products which
don't support BONDING, they only support MPP. There are even more issues
to this whole 128K issue. The problem is there is also MPPP and MPP and
that no two venders it seems are making the same 128K protocol for
multilink point-to-point. Livingston is coming out with a product for MPP
this month, and a few others, so we may see some big changes ahead.

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BitSurfer vs. BitSurfer Pro?

Post by Bill Coffel » Thu, 09 Nov 1995 04:00:00


I'm sure others will explain it better, but from my
conversation with Motorola on this subject, I undestood the key
word to be asynchronous. I think it means that what is on each
B channel is 64k asynchronous and you need async inverse
multiplex to bond them together together to make 128k. A
feature not on the Bitsurfer.
 
 
 

BitSurfer vs. BitSurfer Pro?

Post by Bob Ju » Fri, 10 Nov 1995 04:00:00



 > Also, from reading a bunch of the threads, I've gotten that there's
 > a ~112Kbps limitation on the serial port.  Does this limitation only
 > apply to ports without the 16550 UART?  Or, does it apply to any
 > serial port?

 > Normally that is the case but with some special high speed serial
 > ports  you can push that limit higher. Cards like the Hayes ESP, the
 > RocketCard,  and other cards that have CPUs on the serial card are
 > very good at very  high speed serial comminucations like what you
 > would do with the bitsurfr  or the Bitsurfr Pro.

But the Hayes ESP or RocketCard won't do you any good if the *BitSurfer's*
hardware is only capable of 115200 bps asynchronous, as is the case...

                                   - Bob
Compuserve: 72662,3547

 
 
 

BitSurfer vs. BitSurfer Pro?

Post by C. Rohrmei » Sat, 11 Nov 1995 04:00:00



: : I'm sure others will explain it better, but from my
: : conversation with Motorola on this subject, I undestood the key
: : word to be asynchronous. I think it means that what is on each
: : B channel is 64k asynchronous and you need async inverse
: : multiplex to bond them together together to make 128k. A
: : feature not on the Bitsurfer.

: Unfortunately, no one has explained it better than you just did.
: So, in other words, my BitSURFR won't be able to do 128k, and I
: got ripped off.  Anyone wanna buy a BitSURFR?  Never used.  Barely
: over a month old.   Best offer.

How did you get ripped off? You didn't pay the price of a Bitserfr Pro, so
why do you expect the thing to perform like one? I spent $399 on my BS Pro-
not exactly cheap, but cheap enough. I see regular BSs going for $250. You
pay $149 more and and you get more.

However I saw that they sell BONDING upgrades for the normal BSs for $60.

-Christian

--

Field Services Specialist - Telephone and Data Systems, Inc.
Computing Services Div. - All opinion are my own.

 
 
 

BitSurfer vs. BitSurfer Pro?

Post by Supin » Sat, 11 Nov 1995 04:00:00


: I'm sure others will explain it better, but from my
: conversation with Motorola on this subject, I undestood the key
: word to be asynchronous. I think it means that what is on each
: B channel is 64k asynchronous and you need async inverse
: multiplex to bond them together together to make 128k. A
: feature not on the Bitsurfer.

Unfortunately, no one has explained it better than you just did.
So, in other words, my BitSURFR won't be able to do 128k, and I
got ripped off.  Anyone wanna buy a BitSURFR?  Never used.  Barely
over a month old.   Best offer.

 
 
 

BitSurfer vs. BitSurfer Pro?

Post by Supin » Wed, 15 Nov 1995 04:00:00


[ snip ]

: How did you get ripped off? You didn't pay the price of a Bitserfr Pro, so
: why do you expect the thing to perform like one? I spent $399 on my BS Pro-
: not exactly cheap, but cheap enough. I see regular BSs going for $250. You
: pay $149 more and and you get more.

: However I saw that they sell BONDING upgrades for the normal BSs for $60.

: -Christian

: --

: Field Services Specialist - Telephone and Data Systems, Inc.
: Computing Services Div. - All opinion are my own.

Well, Fry's was advertising the following deal: Buy the BitSurfr and sign up
for ISDN through Pac Bell at the same time.  They'll handle everything, and
you'll be connected to the Internet at 128K in no time!  Sounds pretty good,
eh?  Well, the problem is, as someone pointed out, there are hardly any ISPs
out there that support the BONDING protocol.  In fact, I haven't found any.
So, I paid the price of a BitSurfr, and expected it to perform as advertised,
but it doesn't.  That sounds an awful lot like a rip off to me.

Supin