From: jonatale@xxxxxxxxxxxxx
Date: Tue Feb 12 2002 - 00:23:50 GMT-3
it is def'd as "first bit on wire" so t/r and e/n are diff
Ben Hickey wrote:
> That is kind of true, my understanding:
> Least Significant bit of DSAP is individual/group bit
> -therefore must be allowed to flip
> Least significant bit of SSAP is command/response bit
> - therefore must be allowed to flip
>
> Do the binary - the only way to have it make sense (well for me)
> You then get to
> DSAP: 0x00 DSAP Mask: 0x0D
> SSAP: 0x00 SSAP Mask: 0x0D
> = access-l 200 p 0x0000 0x0d0d
>
> Thanks for refreshing my memory.
>
> Good luck - Ben
> R&S Brussels 21 Nov
>
> -----Original Message-----
> From: McCallum, Robert [mailto:Robert.McCallum@let-it-be-thus.com]
> Sent: 13 November 2001 08:53
> To: 'William'; Matt Smith; ccielab@groupstudy.com
> Subject: RE: List of Good things to remember
>
> The reason for the 0d0d mask for SNA is not just because it uses 04, 08
> etc it also permit 05 09 etc this is because of the direction bit set in
> the frame. i.e. 04 going one way 05 coming back.
>
> -----Original Message-----
> From: William [mailto:wdoyle123@home.com]
> Sent: 13 November 2001 01:19
> To: Matt Smith; ccielab@groupstudy.com
> Subject: Re: List of Good things to remember
>
> SNA starts at SAP 04 and increments by 4 SAP 08,0C....etc..
> ----- Original Message -----
> From: "Matt Smith" <matt-n-donna@cablespeed.com>
> To: <ccielab@groupstudy.com>
> Sent: Monday, November 12, 2001 6:25 PM
> Subject: List of Good things to remember
>
> > Hey all,
> > would any of you have a good list of things that warrant
> memorizing?
> I am
> > begining to develop my own and would appreciate any help from the
> masses
> in
> > adding to it. What I am after are things like the following:
> >
> > Novell Serialization port # = 457
> > VoIP uses UDP port 16384-16484 and TCP 1720
> > what SAPs Netbios uses (0xF0F0 mask 0x0101 not sure on this one)
> > standard Saps that SNA uses (0x0000 0x0d0d ?? Not sure on this
> either)
> > etc. I will compile the list and email it to those who add to it if
> anyone is
> > interested.
> >
> > Thanks in advance for your help.
> >
> > Luck to all
> > Matt
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