Date: Mon, 25 Feb 2002 22:26:44 -0500 (EST) From: Charles Peterman <cjp@sandbox.sandstorm.net> To: Jeff Lawton <jeff@idealso.com> Cc: Brooks Davis <brooks@one-eyed-alien.net>, <freebsd-net@freebsd.org> Subject: RE: 3com gigabit 3c996b-t Message-ID: <Pine.LNX.4.33.0202252219080.4522-100000@sandbox.sandstorm.net> In-Reply-To: <NFBBJDLNADNIPCNOAPMHOEIPCDAA.jeff@idealso.com>
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In our recent tests of gigabit ethernet, cards with the BCM5700 chipset, offered the best performance. The two cards which satisfy that are the 3c996-T and one of the SysKonnect (sp?) cards. If you try hard (pricewatch) you can still find vendors willing to sell the 3c996-T instead of its brain dead pretender, the 3c996b-T. The 3c996b-T is based on the BCM5701, which does away with external memory, thus leaving the card with only 96k of cache. Read the bge source files for more on how this lobotomizes performance. On Mon, 25 Feb 2002, Jeff Lawton wrote: > Thank you, if you get a functioning driver please let me know. Does any one > know if I would be better off returning this card and getting a more > supported one like the intel pro1000 or dge-500tx. does any one have a > recommendation. My company wants to use this as a btrieve (I know yuk) file > server. We have a database that we have been using for years. This is an > temporary performance increase while we work on a client server system. > > Jeff Lawton > Ideal Solution, LLC > > -----Original Message----- > From: Brooks Davis [mailto:brooks@one-eyed-alien.net] > Sent: Monday, February 25, 2002 2:39 PM > To: Jeff Lawton > Cc: freebsd-net@FreeBSD.ORG > Subject: Re: 3com gigabit 3c996b-t > > On Fri, Feb 22, 2002 at 06:58:20PM -0500, Jeff Lawton wrote: > > Bge detects the card and it shows up on ifconfig it does not detect > > 1000basetx on autoselect even though the card and the switch both register > > 1000baset. I connected it to a 100base t port and it seems to work fine. > How > > do I get it to switch to 1000baset > > > > This is the bge section of ifconfig > > > > bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > > options=3<rxcsum,txcsum> > > inet 192.168.0.166 netmask 0xffffff00 broadcast 192.168.0.255 > > inet6 fe80::204:76ff:fee0:12a9%bge0 prefixlen 64 scopeid 0x1 > > ether 00:04:76:e0:12:a9 > > media: Ethernet autoselect (100baseTX <full-duplex>) > > status: active > > At least on the systems I'm trying to use 3C996B-T's on, the MII support > is clearly hosed. I'm seeing it probe 32 instances on ukphys which is > bogus. I'm going to try and look at it some time this week, but someone > with more driver experience would probalby have more luck. > > -- Brooksk > > -- > Any statement of the form "X is the one, true Y" is FALSE. > PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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