Date: Sun, 19 Dec 2010 01:20:38 +0600 From: Eugene Grosbein <egrosbein@rdtc.ru> To: net@freebsd.org Subject: Re: lagg/lacp poor traffic distribution Message-ID: <4D0D0986.9080005@rdtc.ru> In-Reply-To: <4D0CFEFF.3000902@rdtc.ru> References: <4D0CFEFF.3000902@rdtc.ru>
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On 19.12.2010 00:35, Eugene Grosbein wrote: > Hi! > > I've loaded router using two lagg interfaces in LACP mode. > lagg0 has IP address and two ports (em0 and em1) and carry untagged frames. > lagg1 has no IP address and has two ports (igb0 and igb1) and carry > about 1000 dot-q vlans with lots of hosts in each vlan. > > For lagg1, lagg distributes outgoing traffic over two ports just fine. > For lagg0 (untagged ethernet segment with only 2 MAC addresses) > less than 0.07% (54Mbit/s max) of traffic goes to em0 Here 7%, not 0.07%. And I forgot to note it's 8.2-PRERELEASE. > and over 99.92% goes to em1, that's bad. > > That's general traffic of several thousands of customers surfing the web, > using torrents etc. I've glanced over lagg/lacp sources if src/sys/net/ > and found nothing suspicious, it should extract and use srcIP/dstIP for hash. > > How do I debug this problem?
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