Re: [lwip-users] Stack Cleaning

[Steven Woody]

On 21 April 2011 15:50, Kieran Mansley <address@hidden> wrote:
> On Thu, 2011-04-21 at 13:07 +0800, Steven Woody wrote:
>>
>> If my system used the stack for a while, then it detected that
>> physical link has been somehow broken.  The it need to reestablish the
>> link and begin to rerun lwip again.  Before the link was broken, there
>> might be some active tcp/udp connection opened, so I was expecting
>> there were some tear down functions provided, but I did not find it at
>> the end.  Hence I want to ask, what is suggested method to clear lwip
>> in my case?
>
> TCP and UDP connections should survive a physical link going down and
> back up again.  If the routing has changed as a result of the link
> flapping then the TCP and UDP connections should discover this when
> they're next active (and probably get reset, or just time out).  I.e.
> there shouldn't be anything for you to do, the stack should just sort
> itself out.
>
> Kieran

Kieran,

How to understand 'when they're next active'? Thanks.


>
>
> _______________________________________________
> lwip-users mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/lwip-users
>



-- 
Life is the only flaw in an otherwise perfect nonexistence
    -- Schopenhauer

narke
public key at http://subkeys.pgp.net:11371 (address@hidden)