Re: Unexpected primitive ack DL_UNITDATA_IND

[Rick Jones <rick.jones2 () hp com>]

Guy Harris wrote:
> On Jun 9, 2004, at 1:58 PM, Rick Jones wrote:
>
> > On the surface I wouldn't think so - simply attaching to a PPA I don't 
> > think means traffic could arrive - however, if one has attached, and 
> > then binds to a SAP, then traffic could indeed start arriving.  
> > (Il-informed guesstimation, and hopefully I'm recalling the correct 
> > distinction between attach and bind)
>
>
> Well, we *are* doing an info request after binding, so perhaps it might 
> happen then.
>
> I'm not sure why we're doing that; it dates back to libpcap 0.4.  Do you 
> know of any reason why the "dl_mac_type" from an info request before 
> binding to a SAP might be different from the "dl_mac_type" from a 
> request after binding to a SAP?

I cannot think of one - of course, DLPI being what it is...

I thought though that the SAP selected was rather, um, obscure?  I suppose one 
thing to consider would be to have some sort of bugcatcher in the code that 
displayed the entire contents of the unexpected message - say simply in hex. 
Then one could determin if it matches the bound SAP.

rick jones
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