tag:blogger.com,1999:blog-3993498847203183398.post6283671103906639411..comments2024-03-29T11:00:39.953+00:00Comments on RevK<sup>®</sup>'s ramblings: Duplex mismatchRevKhttp://www.blogger.com/profile/12369263214193333422noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3993498847203183398.post-36680840078777835432009-12-11T10:03:33.398+00:002009-12-11T10:03:33.398+00:00I work for an ISP which sells layer 2 ethernet cir...I work for an ISP which sells layer 2 ethernet circuits (NOT the telco you're talking about). We always fix the speed on the ethernet ports because certain manufacturer's equipment will happily work on auto-negotiate ports... for a while. Then suddenly it'll drop to half-duplex all on it's own with no prompting, and the other side will remain at full-duplex. Spontaneous duplex mismatches make customer angry. <br /><br />TL;DR - Bad switch/router maker makes telcos and ISPs hardware their ethernet port settings.Anonymousnoreply@blogger.com