[cisco-nas] AS5350s ttys vs. async ints

Aaron Leonard Aaron at cisco.com
Wed Jul 12 18:25:00 EDT 2006


Very true - async 1/105 and tty 1/105 denote one and the same 
modem/line/interface.  The "line" data structure handles the 
physical/character mode aspects of the line, and the "interface" data 
structure handles the framed aspects of the connection (layer 2 framing 
such as PPP/SLIP, layer 3 attributes such as IP.)

Aaron

------------------------------------------------------------------------

>
> Hi,
>     A real quick question to which I'm quite sure of the answer 
> however I've been asked to confirm.  When users dial into our 5350 
> modem pool with a script.....they connect to a tty, let's say 1/105, 
> authenticate and then start up PPP which 'invokes' (for lack of a 
> better word ) int async 1/105.  It appears that there is a direct 1 to 
> 1 correlation between ttys and async interfaces.  So, there's no 
> chance that someone could connect to tty 1/102 and somehow invoke int 
> async 2/98?..........right?........ie......if tty 1/103 is never 
> accessed then int async 1/103 will never be used?
>
> ........thanks in advance................Jamie
>
> James Savage                                   York University          
> Senior Communications Tech.       108 Steacie Building
> jsavage at yorku.ca                            4700 Keele Street
> ph: 416-736-2100 ext. 22605            Toronto, Ontario
> fax: 416-736-5701                                M3J 1P3, CANADA
> ------------------------------------------------------------------------
>
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