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Date:      Thu, 8 Feb 2001 10:18:11 -0500 (EST)
From:      Alex Pilosov <alex@pilosoft.com>
To:        Andrea Venturoli <ml.ventu@flashnet.it>
Cc:        freebsd-net@FreeBSD.ORG
Subject:   Re: Meditation on rl driver
Message-ID:  <Pine.BSO.4.10.10102081008400.10437-100000@spider.pilosoft.com>
In-Reply-To: <200102081432.f18EW3113944@relay.flashnet.it>

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On Thu, 8 Feb 2001, Andrea Venturoli wrote:

> My wonderings are:  _ "mediaopt full-duplex" does not work, while it's
> documented in the rl man page; isn't this a bug?
According to your email, mediaopt full-duplex works, but only if it is
specified concurrently with media keyword. half-duplex doesn't seem to
work...

> _ autoselecting the media obviously does not work correctly, does it? 
For that card, apparently ;)

> _ if two devices are connected and one speaks half-duplex, the other
> full-duplex, shouldn't they fail to communicate at all? Is the hang-up
> after a while and under heavy load normal?
Here's the sequence of events:
1) Heavy load generates LOADS of collisions when alcatel is trying to send
something but constantly gets collided with incoming stream.
2) At some point, alcatel decides that this is one too many collisions (or
a packet that its trying to send gets consecutively 'backed-off' too many
times) and decides that interface is borken and it's best to shut it
down ;)


> _ has anything changed in the rl driver after 4.1-RELEASE? 
mediaopt half-duplex still doesn't work on rl in 4.2-RELEASE, so...

-alex



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