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Date: Mon, 10 Oct 2005 13:52:49 +0300
From: Pertti Kosunen <pertti.kosunen@pp.nic.fi>
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To: ferdinand.goldmann@jku.at
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Cc: net@freebsd.org
Subject: Re: dummynet, em driver, device polling issues :-((
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Ferdinand Goldmann wrote:
> Problem is only that the em driver does not support Jumbo frames on the 
> 82545GM. :-(

You should try, the em man page is not up to date (6.0-BETA5).

      "The driver
      supports Transmit/Receive checksum offload and Jumbo Frames only on
      82540, 82543, 82544 and 82546-based adapters."

em0@pci0:13:0:  class=0x020000 card=0x11768086 chip=0x10768086 rev=0x00 
hdr=0x00
     vendor   = 'Intel Corporation'
     device   = '82547EI Gigabit Ethernet Controller'

em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 9014
         options=4b<RXCSUM,TXCSUM,VLAN_MTU,POLLING>
         inet 10.0.10.10 netmask 0xffffff00 broadcast 10.0.10.255
         ether 00:0e:0c:68:88:86
         media: Ethernet autoselect (1000baseTX <full-duplex>)
         status: active