[lwip-users] [lwip] RFC: ARP (timing) behaviour

[leon . woestenberg]

Hello,

More RFC on etharp.c:

The current etharp.c will remove pending items (and their queued packets!!)
only
after 10 seconds. This stresses the queuing implementation and memory
usage enormously.

I would suggest lowering this to 2 seconds; ARP traffic is supposed to be
low-latency.
I did not search recommended timeouts values yet. Is someone aware of BSD's
timeout values.

Also, the current etharp.c implementation _must_ be enhanced in order to
conform to
spec. on gratuitous ARP. I'm implementing this as we speak. See the top
portion of:

http://rfc-3220.rfc-list.net/rfc-3220-69.htm

for more issues.

Leon.

[This message was sent through the lwip discussion list.]