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Date:      Wed, 10 Nov 1999 16:45:21 +0100 (CET)
From:      Luigi Rizzo <luigi@info.iet.unipi.it>
To:        myevmenkin@att.com (Yevmenkin Maksim N CSCIO)
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: Ethernet TAP driver v0.2 released
Message-ID:  <199911101545.QAA04767@info.iet.unipi.it>
In-Reply-To: <BB28E4B22253D21185F80000C0A40100D44C53@njb140po06.ems.att.com> from "Yevmenkin, Maksim N, CSCIO" at "Nov 10, 1999 10:37:26 am"

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> 	I've released Ethernet TAP driver v0.2 for FreeBSD
...
> 	Folks, what do you think about smart user-space Ethernet bridge?
> 	Anyone needs it?

i think performance is a big problem here (same as in the case of
user-space natd, but worse because a bridge touches all packets).
You have too many data copies.

	cheers
	luigi

-----------------------------------+-------------------------------------
  Luigi RIZZO, luigi@iet.unipi.it  . Dip. di Ing. dell'Informazione
  http://www.iet.unipi.it/~luigi/  . Universita` di Pisa
  TEL/FAX: +39-050-568.533/522     . via Diotisalvi 2, 56126 PISA (Italy)

		  http://www.iet.unipi.it/~luigi/ngc99/
====  First International Workshop on Networked Group Communication  ====
-----------------------------------+-------------------------------------


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