31 messages in net.nether.puck.cisco-nsp[c-nsp] autonegotiating hub was: Defe...
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Clinton WorkJan 14, 2005 5:25 pm 
jex...@harding.eduJan 14, 2005 5:36 pm 
Larry SmithJan 14, 2005 5:45 pm 
John NeibergerJan 14, 2005 5:53 pm 
Michael K. SmithJan 14, 2005 5:55 pm 
Niels BakkerJan 14, 2005 7:35 pm 
Anthony D CennamiJan 14, 2005 8:19 pm 
Greg SchwimerJan 14, 2005 9:16 pm 
Mikael AbrahamssonJan 15, 2005 3:03 am 
Ted MittelstaedtJan 15, 2005 3:55 am 
Mikael AbrahamssonJan 15, 2005 4:05 am 
Chris CappuccioJan 15, 2005 4:11 am 
Mikael AbrahamssonJan 15, 2005 4:16 am 
lee....@census.govJan 15, 2005 7:23 am 
Mikael AbrahamssonJan 15, 2005 8:14 am 
MikeJan 15, 2005 9:25 am 
Church, ChuckJan 15, 2005 9:47 am 
Gert DoeringJan 15, 2005 11:20 am 
Ted MittelstaedtJan 15, 2005 11:31 am 
Gert DoeringJan 15, 2005 11:57 am 
Michael K. SmithJan 15, 2005 4:25 pm 
Gert DoeringJan 15, 2005 4:45 pm 
Michael K. SmithJan 15, 2005 4:48 pm 
Michael K. SmithJan 15, 2005 4:52 pm 
Mikael AbrahamssonJan 16, 2005 2:33 am 
Majid FaridJan 16, 2005 2:42 am 
Reuben FarrellyJan 16, 2005 5:35 am 
Mikael AbrahamssonJan 16, 2005 5:49 am 
Hudson Delbert J Contr 61 CS/SCBNJan 18, 2005 10:26 am 
Vincent De KeyzerJan 18, 2005 10:40 am 
Clinton WorkJan 19, 2005 11:48 am 
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Subject:[c-nsp] autonegotiating hub was: Deferred packets on 2950 10/full interfaceActions...
From:Gert Doering (ge@greenie.muc.de)
Date:Jan 15, 2005 11:20:01 am
List:net.nether.puck.cisco-nsp

Hi,

On Sat, Jan 15, 2005 at 07:16:13AM -0500, lee.@census.gov wrote:

was non autonegotiating. This caused problems with many autonegotiating hubs as the card had problems figuring out if something was

Speaking of atrocity, what is an "autonegotiating hub"?

Anything marketed as a dual-speed or 10/100 hub.

These were actually two separate hubs (and as such: half-duplex only) with a bridge in between - with the ports being switched to one hub or the other, depending on the link speed.

Link speed negotiaton and half-duplex/full-duplex negotiation are two completely different pair of shoes.

Hubs will NEVER do full-duplex - it's impossible by design. Think what happens if two stations send simultaneously.

[..]

Cheap combination of both - they act like there's an internal 2 port switch for switching traffic between the 10Mb hub ports and the 100Mb hub ports.

Exactly. But each of the hubs is a hub is a hub.

gert

-- USENET is *not* the non-clickable part of WWW! //www.muc.de/~gert/ Gert Doering - Munich, Germany ge@greenie.muc.de fax: +49-89-35655025 ge@net.informatik.tu-muenchen.de