Subject: Re: Asante MCiLC-10T Mac PDS Support?
To: Kazuyuki Inanaga <happyday@pp.iij4u.or.jp>
From: Daniel R. Killoran,Ph.D. <drkilloran@speakeasy.net>
List: port-mac68k
Date: 02/10/2004 10:00:09
>Hi,
>
>At 4:23 PM -0500 04.2.9, Joey C wrote:
>>I was trying to set up my new Asante MCiLC-10T PDS Ethernet card on my
>>Performa 450 (LCIII) in NetBSD, but it doesn't seem to be working.
>
>I've seen this error on my Asante MCiNB-10T.
>Asante MCiNB-10T(MacCon NuBus-A) and MC3NB fail to negotiate with my
>10/100Mbps Switching HUB. (I don't have Asante MCiLC-10T)
>
>>Is this a support problem for the MCiLC Ethernet card?
>
>I think Asante MC* series is supported.
>
>>How can this issue be resolved?
>
>I put a small 10Mbps HUB between Asante MC* and Switching HUB.
>Mac/Asante MC*NB -- 10Mbps HUB -- 10/100Mbps Switching HUB -- Router
>I don't know the reason, but this setting works fine.
>
>Of course I think it depneds on the HUB. Does anyone make the negotiation
>successfully Asante MC* series with 10/100Mbps Switching HUB directly?
>
>Good luck!
>Kazu Inanaga

This sounds like an inability of the card to=20
negotiate. I had a similay trouble with Asante=20
cards and inquired of them what was going on.=20
They replied (VERY quickly):

>  >From your description (or by our assumption) this connection is to 10/10=
0
>
>NWay switch/hub or it is a direct connection to a 10/100 port on a
>G3/G4/iMac/iBook.  The symptom usually seen is that there is no connection
>to the network, with a flashing link light on the card and no link status
>obtained on the switch or hub.  These MCiLC (LC-PDS) and MacCon (ComSlot)
>cards were compliant and worked with the then existing IEEE standards when
>purchased by your organization.
>
>[This last remark is not strictly correct. I=20
>purchased them a month ago. It should read=20
>"These MCiLC (LC-PDS) and MacCon (ComSlot) cards=20
>were compliant and worked with the then existing=20
>IEEE standards when MANUFACTURED by OUR=20
>organization. " --- DRK]
>
>I believe that it can be shown that the card is functioning correctly
>because if you connect the MCiLC-10T or MacCon cards (used in your LC/PDS
>based systems) to a 10Mbps hub then they work just fine.  The reason for
>this is that these cards, are not designed for NWay and  do not auto
>negotiate (NWay) with 10/100 NWay devices such as described above.
>
>To resolve this issue: The ports where these connections are made on
>switches/hubs will need to have those ports configured to 10Mbps and
>Half-Duplex operation (and this is not possible on the G3/G4/iMac/iBooks).
>If this is not possible then interposition of a 10Mbps hub between the card=
s
>and the 10/100 NWay port is required to resolve this.
>
>The quick and direct way to deal with this (and the most inexpensive) is to
>place a 10Mbps hub between these cards and the rest of the network.  We
>recommend our products but anyone's 10Mbps hub will work.
>
>Product Name:		FH10T5 - G  (a 5 port/10Mbps hub) Grape case color
>Product Number:		99-00613-01
>Suggested Retail:		$35.00 (US)
>
>This will provide you with connectivity to your network and is covered unde=
r
>a limited lifetime warranty by Asant=C8.  Please contact our inside sales
>department (at 800-303-9121 or sales@asante.com)  if you need additional
>information on this product.  Select Option #1 from the presented menus.
>
>
>In this quickly changing industry, where change is happening everyday, all
>vendors strive for better performance without losing compatibility with
>products produced in the past.  If the 10/100 NWay hubs/switches you
>currently have installed are not supporting this card then that device is
>not currently compliant with this International ANSI/IEEE 802.3u NWay
>standard.  That other vendors, during development, have chosen, for whateve=
r
>reason, not to provide this back-ward compatibility, is a question better
>answered by them.
>
>The current connection should, by default,  be established and working with
>our devices at 10Mbps, per this standard.  For more information on the NWay
>standards please refer to the following:
>
>	http://cesdis.gsfc.nasa.gov/linux/misc/NWay.html#1.0
>
>This standard (proposed by National Semiconductor) is 802.3u 100Base-T and
>was accepted in 1994.  The mechanism is defined in Clause 28 of the D4 draf=
t
>of the ANSI/IEEE Std 802.3 MAC Parameters, Physical Layer, Medium
>Attachments Units and Repeater for 100Mb/s Operation.
>
>This IEEE International Standard calls out that the device be able to
>automatically configure the highest performance mode of inter-operation.
>The key to Auto-Negotiation's inter-operation with installed, legacy LANs i=
s
>the "Parallel Detection" function.  The Parallel detection function account=
s
>for the case where only one end of the connection has an NWay device (such
>as this device from Asant=C8).  In cases such as these the hub/switch shoul=
d
>recognize the unique signals that the 10Base-T only device produces and
>should switch to 10Base-T operation automatically.
>
>The Asant=C8 products you have are Warranted to be free from defects in
>materials and manufacturing workmanship for the period specified for the
>warranty.  We do not warranty our products for Forward Compatibility and
>that the card presently works when placed in the legacy environment, for
>which it was designed and sold, and not in the current installation does no=
t
>mean that the cards is defective.  They are not as this is a forward
>compatibility issue that is not covered by the specific written warranty
>given you with our product.
>
>... plus contact information.
>

Dan Killoran