On 2009-07-29 19:43, Benny Amorsen wrote: > Brian E Carpenter <brian.e.carpen...@gmail.com> writes: > >> Er, do your routers do that when they throw away packets due to >> congestion? > > If a router throws away a packet due to congestion, there's a good > chance that a retransmission will go through. In this case you can > retransmit as many no-UDP-checksum packets you want, none of them will > get through. The host really ought to be told that it is wasting its > time.
There's no retransmission in UDP. Presumably there is no harm in sending back some kind of ICMP error, most likely Parameter Problem, at a throttled rate. But we shouldn't mandate it IMHO, and you certainly can't rely on a host stopping a UDP stream as a result. Brian -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
