On Thu, May 17, 2001 at 10:14:42PM +0200, Markus W Kilbinger wrote:

 > I tried to connect two GA620 cards (one in a 1.5.1_BETA2/i386, one in
 > a todays -current/i386 system) directly with a 'cross over' fiber
 > which seems to work in general. Both cards are detected like
 > 
 >   ti0 at pci0 dev 13 function 0: Netgear GA620 1000baseSX Gigabit Ethernet (rev. 0x01)
 >   ti0: interrupting at irq 9
 >   ti0: Ethernet address: 00:02:e3:00:1e:11
 > 
 > 'ifconfig ti0' shows on both sides something like:
 > 
 >   ti0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 9000
 >         address: 00:02:e3:00:1e:11
 >         media: Ethernet autoselect (1000baseSX full-duplex)
 >         status: active
 >         inet 10.31.5.1 netmask 0xffffff00 broadcast 10.31.5.255
 >         inet6 fe80::202:e3ff:fe00:1e11%ti0 prefixlen 64 scopeid 0x2
 > 
 > But: I get a lot of
 > 
 >   ti0: discarding oversize frame (len=2090)
 > 
 > messages, 'ping'ing with increasing packet sizes above '-s 1472'
 > fails.
 > 
 > Why? Is it not allowed to directly connect such NIC's?

Hi, I know what the problem is with this -- I will send you a patch to
try later.

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>