Re: [lwip-users] LLDP Implementation for lwIP

[address@hidden]

Amit Ashara wrote:
> http://lwip.wikia.com/wiki/LwIP_Developers_Manual

Oh, right. You see, I don't really follow the wiki... Wikia has way too 
much advertising.

> This implementation is only for a single port device [..]
> So it is not clear where do I insert the LLDP frame?

That's what I said. A device having one netif (i.e. the device's MAC 
address having one IP address) that connects to a network via multiple 
ports (which, in the LLDP case, each must have their own port MAC 
address), doesn't fit the lwIP netif model.

You need to insert the LLDP TX frames to your driver independent of lwIP 
(although it could be done by adding some kind of destination port to a 
pbuf or something like that). And you'll have to extract the source port 
from incoming pbufs, which is also not covered by lwIP.

I'm open for suggestions on integrating multi-port support to lwIP as 
long as it doesn't have negative side-effects on the standard 
single-port case.


Simon