Date: Mon, 26 Apr 2004 16:11:12 +0400 From: Roman Kurakin <rik@cronyx.ru> To: Eugene Grosbein <eugen@kuzbass.ru> Cc: net@freebsd.org Subject: Re: em(4) link flapping Message-ID: <408CFC60.4040708@cronyx.ru> In-Reply-To: <408CDD45.4EFA2085@kuzbass.ru> References: <408CDD45.4EFA2085@kuzbass.ru>
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Eugene Grosbein wrote:
>Hi!
>
>My Intel motherboard contains on-boad NIC:
>
>em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.25> port
>0xac00-0xac1f mem 0xfe9e0000-0xfe9fffff irq 10 at device 1.0 on pci2
>
>It it connected to Allied Telesyn AT FS724i unmanaged switch,
>media is autodetected correctly - 100baseTX full-duplex.
>
>It worked nice for 3 months. Today morning switch and em0
>start to loose/establish link every 5-10 seconds. They do it
>with autosensed media and with manually set 100baseTX (both half-duplex
>or full-duplex variants) now. I've forced it to 10mbit/half duplex,
>it seems to be much stable.
>
>This box has two more PCI ethernet cards, each of which is two-port em(4),
>so I have em0 (that has problems) and em1, em2, em3 and em4
>(that keep working OK).
>
>I tried to replace a cable, to reset the switch, to reboot this 4.9-STABLE
>box - nothing helps. What should I try next?
>
>
Did you tried another port on a switch?
Best regards,
rik
>Eugene Grosbein
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>
>
>
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