Re: Which GigE NIC for reliable use?


Which GigE NIC for reliable use?
\ Steve Kargl (21 Jun 2007)
. \ Steve Kargl (21 Jun 2007)
. \ Sameh Ghane (21 Jun 2007)

3 msg	Intel PowerTop tool on FreeBSD?
7 msg	Wireless capture
7 msg	Promise SATA300 TX4 card issues
2 msg	ZFS scrub gone wrong
12 msg	Kernel Panic in latest -CURRENT
5 msg	AGPGART not found ... ( on Q965)
10 msg	ZFS and deadlock with {nullfs,NFS}
17 msg	ZFS status now in June? / stable enough for a f...
1 msg	Camellia block cipher for geli (GEOM ELI).
3 msg	truss(1) gets confused after execve
2 msg	Panic in callout_reset()
1 msg	Acer Aspire 5100 problems in current
2 msg	Re: i386 with PAE or AMD64 on PowerEdge with 4G...
19 msg	[head tinderbox] failure on sparc64/sparc64
11 msg	Current does not boot - BIOS problem?
3 msg	ukbd broken as module
1 msg	zfs and backup
2 msg	pkg_add : works fine when compiled normally ;se...
17 msg	wireless

Subject:	Re: Which GigE NIC for reliable use?
Group:	Freebsd-current
From:	Sameh Ghane
Date:	21 Jun 2007

Le (On) Thu, Jun 21, 2007 at 09:07:43AM -0700, Steve Kargl ecrivit (wrote):
>
> Jun 20 23:22:33 node10 kernel: TCP: [10.208.78.111]:54801 to
> [10.208.78.111]:49376 tcpflags 0x10<ACK>; syncache_expand: Segment failed
> SYNCOOKIE authentication, segment rejected (probably spoofed)

How does a local communication get affected by your NIC's behavior !?

You seem to use Jumbo frames, maybe the link loss is switch related ?

> So, I plan to replace all of the bge devices with a reliable,
> robust GigE NIC. Anyone have a suggestion for such a cards?

I would go for em(4) because the driver works really fine, for quite some time.
Polling support is really good, and helps reducing interrupts.
In my experience, even while comparing non polling mode kernels, other NICs (or
their drivers) tend to generate more interrupts.

It has nice sysctl tuning variables (ahem, actually the man page is a bit
obsolete, but browsing the sysctl tree will help you find the new variable
names).

Hardware is easy to find and widespread (driver available since FBSD 4.4).

It is the proud successor of fxp(4) in my humble opinion: cheap *and* efficient.

Cheers,

--
Sameh Ghane
_______________________________________________
freebsd-current mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscribe"