problems with bge and cisco gbic-t sfp

[kama]

Hi,

I have a problem with the connection between my bge card and a cisco 7609
with a gbic-t sfp.

uname
5.4-STABLE FreeBSD 5.4-STABLE #0: Tue Apr 5 11:21:17 CEST 2005.

dmesg
bge0: <Broadcom BCM5703 Gigabit Ethernet, ASIC rev. 0x1002> mem
0xf7df0000-0xf7dfffff irq 29 at device 1.0 on pci2
miibus0: <MII bus> on bge0
brgphy0: <BCM5703 10/100/1000baseTX PHY> on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX,
1000baseTX-FDX, auto
bge0: Ethernet address: 00:0d:9d:93:f1:dd

ifconfig
bge0: flags=9843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=1a<TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
        inet X.X.X.X netmask 0xfffffffc broadcast X.X.X.X
        ether 00:0d:9d:93:f1:dd
        media: Ethernet 1000baseTX <full-duplex>
        status: active

When I run ifconfig repeatitly I get strange answers on media.

media: Ethernet 1000baseTX <full-duplex> (10GBASE-SR <full-duplex>)
media: Ethernet 1000baseTX <full-duplex> (10baseT <half-duplex>)
...

Sometimes the status changes to none and back to active.

On the other end I get nothing... The interface looks like its up and
everything is OK. But it does not recognise the up and down as I see the
status. I can reboot the system without it noticing anything. I dont think
its a problem with the cisco hardware, but a bge driver issue or something
related to the driver, like mii. The cables are CAT-6. The GBIC-T can only
run at 1000base-T.

I have other servers connected through an older and bigger GBIC-T and I
cant find any problems on those. But they are running FreeBSD 4.x and not
5.x

/Bjorn