Re: [lwip-users] Problems with sending UDP packets in FreeRTOS

[Simon Goldschmidt]

Noam Weissman wrote:
> As you wrote unsent UDP packets will be freed after 5 seconds but if you send 
> a packet
> every 100ms or so and only have 20-30 buffers 5 seconds will not solve the 
> error.

ARP_QUEUE_LEN limits the maximum buffers on one (unresolved) entry. In 
addition, the default
setting is to queue 1 entry only (when ARP_QUEUEING==0). The problem you 
describe results
from poor protocol design, anyway: you should first check if you can reach the 
remote side
before trying to flood the network with packets ;-)


Simon