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Date:      Tue, 27 Jun 2000 16:51:52 -0400
From:      Nathan Vidican <webmaster@wmptl.com>
To:        Jon Repaci <jonathan.repaci@entegrity.com>
Cc:        questions@freebsd.org
Subject:   Re: Network hangs when switching from 10 BT shared hub to 10/100 BT  autosensing switch
Message-ID:  <395913E7.499D1D26@wmptl.com>
References:  <02ef01bfe04f$67180990$3214000a@IRONWOOD>

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Jon Repaci wrote:
> 
> When switching over two versions of FreeBSD (3.0-RELEASE and 2.2.6-RELEASE)
> on an internal network from 10baseT shared hubs to 10/100baseT autosensing
> switched ports, the network on each hangs.  Upon reboot, it shows that it
> has properly seen the network port 100BT full duplex and the network cards
> show the 100 BT link light on:
> 
> .... /kernel: xl1: autoneg complete, link status good (full-duplex, 100Mbps)
> 
> Another characteristic is that the 3.0 machine hung the boot around
> configuring sendmail (probably because the network wasn't working).
> 
> Any help is appreciated for this weird side effect.
> 
> Jon
> 
>                      +-------------------------------+
>                      | Jonathan.Repaci@entegrity.com |
>                      |    Systems Administrator      |
>                      |     Entegrity Solutions       |
>                      |  10500 Little Patuxent Pkwy   |
>                      |         Suite 550             |
>                      |     Columbia, MD 21044        |
>                      |     410-992-7600 x3018        |
>                      |    HTTP://entegrity.com       |
>                      +-------------------------------+
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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Try forcing media rather than auto-sensing it. Some autosensing hubs
will flip bay and forth from the NIC's attached to them; try something
similar to this:

ifconfig xl1 inet xxx.xxx.xxx.xxx netmask xxx.xxx.xxx.xxx media 100BaseT

I've had this problem with several PCI realtek-chipset'd cards, (rl#'s),
and just forcing the media one way or another usually fixes it.


-- 
Nathan Vidican
webmaster@wmptl.com
Windsor Match Plate & Tool Ltd.
http://www.wmptl.com/


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