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Date:      Fri, 28 Jun 2013 10:29:48 -0700
From:      Peter Grehan <grehan@freebsd.org>
To:        Aryeh Friedman <aryeh.friedman@gmail.com>
Cc:        freebsd-virtualization@freebsd.org
Subject:   Re: questions on if_bridge and if_tap
Message-ID:  <51CDC80C.7070709@freebsd.org>
In-Reply-To: <CAGBxaXnVms5nLihEE7EgOLs0MsUM9nvM%2BLwd0s8s=BekfM=Ydg@mail.gmail.com>

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> 1. Is there a upper limit on the number of bridges and/or taps and if
> so what is it?

  The if_index field for an interface is 16 bits so I guess there may be 
an upper bound of 64K. That might start to stretch limits of FreeBSD in 
other areas.

> 2. Does each tap need a corresponding bridge or can they all go
> through the same bridge?

  They can all go through the same bridge if that's what you want (the 
same broadcoast domain).

later,

Peter.


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