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Date:      Fri, 14 Aug 1998 15:29:19 -0700 (PDT)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        ALI SAIT ERKAN <ase2@lehigh.edu>
Cc:        questions@FreeBSD.ORG
Subject:   Re: your mail
Message-ID:  <Pine.BSF.4.00.9808141527580.13156-100000@resnet.uoregon.edu>
In-Reply-To: <199808141643.MAA55126@ns2-1.CC.Lehigh.EDU>

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On Fri, 14 Aug 1998, ALI SAIT ERKAN wrote:

> Hi all,
> 
> We are in the process of converting a few of our key machines in our
> lab to FreeBSD. We have encountered a number of problems:
> 
> [1] Two of our machines (say A and B) are dual interfaced (the -i
>     interfaces are 10BaseT and the -ii interfaces are 100BaseT):
> 
>     A-i  <---10BaseT---> B-i
>     A-ii <--100BaseT---> B-ii

Um, you have two machines connected together twice?  That shouldn't work
at all, period. Unless I'm completely misunderstanding your figure.

>     When A and B talk over the 10BaseT interfaces, things are ok :)
>     When they use their 100BaseT interfaces, thing are not ok :(

Immediately suspect cabing and media type setting.

> interfaces:
> 	(Used at 10mb/s)
> 	de0 <Digital 21143 Fast Ethernet> rev 48 int a irq 5 on pci0:10:0
> 	de0: 21143 [10-100Mb/s] pass 3.0
> 	de0: address 00:48:54:00:1b:97
> 
> 	(Used at 100mb/s)
> 	de1 <Digital 21143 Fast Ethernet> rev 48 int a irq 9 on pci0:12:0
> 	de1: 21143 [10-100Mb/s] pass 3.0
> 	de1: address 00:48:54:00:13:a1
> 
> 	(Used at 10mb/s)
> 	de2 <Digital 21140A Fast Ethernet> rev 34 int a irq 10 on pci0:14:0
> 	de2: 21140A [10-100Mb/s] pass 2.2
> 	de2: address 00:40:05:41:aa:d3
> 
> /var/log/messages
> 	Aug 14 10:17:19 ball /kernel: de0: enabling 10baseT port
> 	Aug 14 10:17:19 ball /kernel: de1: enabling 100baseTX port
> 	Aug 14 10:17:19 ball /kernel: de2: enabling 10baseT port
> 	Aug 14 10:17:29 ball login: ROOT LOGIN (root) ON ttyv0
> 	Aug 14 10:18:37 ball /kernel: de1: receive: 00:48:54:00:0d:5b: bad crc
> 	Aug 14 10:18:40 ball /kernel: de1: receive: 00:48:54:00:0d:5b: bad crc
> 	Aug 14 10:20:05 ball /kernel: de1: abnormal interrupt: transmit underflow (raising TX threshold to 96|256)
> 	Aug 14 10:20:06 ball /kernel: de1: abnormal interrupt: transmit underflow (raising TX threshold to 8|512)
> 	Aug 14 10:20:09 ball /kernel: de1: abnormal interrupt: transmit underflow (raising TX threshold to 1024)

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major


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