creon@ames-nas-gw.arpa (08/06/84)
From: Creon Levit <creon@ames-nas-gw.arpa> One thing to look at is the illegal (according to the tcp/ip spec.) use of shorts and signed ints where unsigned ints should be used. This was a problem in sending large (4KB) hyperchanne packets via tcp/ip in 4.2bsd. ----------
dave@uwvax.ARPA (08/07/84)
I got a number of replies to my question. This one pretty much says it all: > Sure, we had this problem. The problem is that the 4.2 code seems to > decide randomly whether to use trailers or not (actually, it's not > random, but I don't understand the algorithm - only large packets > will be sent with trailers, though...) If your gateways don't > understand trailer protocols (as ours don't), then the large > packets sent with trailers will never get through. > > Our limited experience with trailers was that they made essentially > no difference in throughput at any time on any type of connection, > so we just turned them off. > -Larry Allen -- Dave Cohrs @ wisconsin ...!{allegra,heurikon,ihnp4,seismo,ucbvax,uwm-evax}!uwvax!dave dave@wisc-rsch.arpa