[net2-wg] Re: T1->T2 porting / shim layer

[Philip Levis]

On Feb 8, 2007, at 1:55 PM, Joe Polastre wrote:

> On 2/8/07, Omprakash Gnawali <gnawali at usc.edu> wrote:
>> The interfaces used by the components in these modules are defined,
>> implemented, and maintained by the core WG so I think it would be
>> something that the core WG should look into. Phil, was there ever a
>> discussion on T1/T2 compatibility in the core WG?
>
> Not to beat a dead horse, but Boomerang is one possible place to look
> to see how others have dealt with T1>T2 compatibility.

Right -- the trick with Boomerang is that it's been able to leverage  
improved *implementations* but not improved *interfaces.* Its job is  
also made a lot easier by being single platform; the largest amount  
of code changes in porting often come from the fact that packets in  
T2 are ADTs, so you can't just access their fields arbitrarily.

Phil