On Sun, Nov 07, 2010 at 12:24:21PM +0100, Ulrich Spörlein wrote: > On Sat, 06.11.2010 at 23:19:33 -0700, Pyun YongHyeon wrote: > > On Sat, Nov 6, 2010 at 2:37 AM, Ulrich Spörlein <u...@spoerlein.net> wrote: > > > Hello Pyun, > > > > > > On this new server, I cannot get more than ~280kByte/s up/downstream out > > > of > > > re(4) without any tweaking. > > > > > > re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > > > > > options=389b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_UCAST,WOL_MCAST,WOL_MAGIC> > > > ether 00:21:85:63:74:34 > > > inet6 fe80::221:85ff:fe63:7434%re0 prefixlen 64 scopeid 0x1 > > > inet 46.4.12.147 netmask 0xffffffc0 broadcast 46.4.12.191 > > > nd6 options=3<PERFORMNUD,ACCEPT_RTADV> > > > media: Ethernet autoselect (100baseTX <half-duplex>) > > > status: active > > > > > > > It seems the link was resolved to half-duplex. Does link partner > > also agree on the resolved speed/duplex? > > As this is a dedicated server in a colo hundreds of km away, I have no > means to check this easily. Especially I cannot change the setting from > auto-neg. Btw, linux will show a negotiated 100/full link via mii-tool.
you can always ask the guys responsible for network infrastructure > > > # ifconfig re0 > > > re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > > options=88<VLAN_MTU,VLAN_HWCSUM> > > > ether 00:21:85:63:74:34 > > > inet6 fe80::221:85ff:fe63:7434%re0 prefixlen 64 scopeid 0x1 > > > inet 46.4.12.147 netmask 0xffffffc0 broadcast 46.4.12.191 > > > nd6 options=3<PERFORMNUD,ACCEPT_RTADV> > > > media: Ethernet 100baseTX <full-duplex> (100baseTX <half-duplex>) > > > status: active > > > > > > > This time, it seems you used forced media configuration > > instead of auto. It still shows duplex mismatch so it's > > normal to see poor performance. What makes me wonder > > is why you have duplex mismatch? > > Did you use forced media configuration on link partner? > > What happens when you use different switch? > > Sadly, none of these options are available to me :/ > But even 100/half should give more than enough performance, right? no, not if the other end is 100/full. Duplex mismatch usually gives around 100-200 kB/s. I've experienced this (around 75kB/s), setting speed/duplex manually fixed the problem. > Uli > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org" Buki -- PGP public key: http://dev.null.cz/buki.asc /"\ \ / ASCII Ribbon Campaign X Against HTML & Outlook Mail / \ http://www.thebackrow.net
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