Date: Fri, 21 Mar 2008 14:28:24 +0100 From: Giulio Ferro <auryn@zirakzigil.org> To: pyunyh@gmail.com Cc: Andrew Thompson <thompsa@freebsd.org>, freebsd-net@freebsd.org Subject: Re: VLAN trunking and fragmentation Message-ID: <47E3B7F8.40307@zirakzigil.org> In-Reply-To: <20080320235420.GA70708@cdnetworks.co.kr> References: <20080313033029.GF16972@cdnetworks.co.kr> <47D92F9D.4070701@zirakzigil.org> <20080314001704.GA22788@cdnetworks.co.kr> <47DA4DCD.6050304@zirakzigil.org> <20080314101555.GF22788@cdnetworks.co.kr> <47DA682E.9010504@zirakzigil.org> <20080314122708.GG22788@cdnetworks.co.kr> <47DA9BC0.8030205@zirakzigil.org> <20080317043945.GA2503@cdnetworks.co.kr> <47E298BD.7050807@zirakzigil.org> <20080320235420.GA70708@cdnetworks.co.kr>
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Pyun YongHyeon wrote: > > > > # ping -s 2000 192.168.100.2 > > PING 192.168.100.2 (192.168.100.2): 2000 data bytes > > 2008 bytes from 192.168.100.2: icmp_seq=0 ttl=64 time=0.264 ms > > 2008 bytes from 192.168.100.2: icmp_seq=1 ttl=64 time=1001.186 ms > > [...] > > > 2008 bytes from 192.168.100.2: icmp_seq=41 ttl=64 time=0.181 ms > > > > > > > > It would be great if you could understand why this happens... > > > > Try set tunable hw.re.msi_disable and let me know how it goes. > (Add hw.re.msi_disable="1" to /boot/loader.conf) > > You're spot on! ---------------------------------- # ping -c 200 -s 1472 192.168.100.2 PING 192.168.100.2 (192.168.100.2): 1472 data bytes 1480 bytes from 192.168.100.2: icmp_seq=0 ttl=64 time=0.192 ms 1480 bytes from 192.168.100.2: icmp_seq=1 ttl=64 time=0.151 ms 1480 bytes from 192.168.100.2: icmp_seq=2 ttl=64 time=0.155 ms 1480 bytes from 192.168.100.2: icmp_seq=3 ttl=64 time=0.150 ms 1480 bytes from 192.168.100.2: icmp_seq=4 ttl=64 time=0.151 ms 1480 bytes from 192.168.100.2: icmp_seq=5 ttl=64 time=0.149 ms 1480 bytes from 192.168.100.2: icmp_seq=6 ttl=64 time=0.153 ms 1480 bytes from 192.168.100.2: icmp_seq=7 ttl=64 time=0.149 ms [...] --- 192.168.100.2 ping statistics --- 200 packets transmitted, 200 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 0.148/0.159/1.472/0.093 ms ---------------------------------- What does that tunable do?
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