[PetiteCloud] a small development project for someone

[Aryeh Friedman]

Michael is correct it is likely not the best (depending on use case) to
have all taps on the same bridge.   The general pros and cons of each
option are:

1. If your looking at a set of cooperating instances on the same host [see
note] then having packets that are only internal to the machine require
routing (even trivial ip forwarding is routing for this discussion) is not
DRY (don't repeat yourself). DRY is one of the coding standards we strive
to meet,  at best and a point of failure at worst.

2. If your instances are outward facing (typical large cloud/provider use
case) then it doesn't matter and having one bridge per tap is likely more
secure (no cross tap snooping)

Note: A typical small development firm use case [PetiteCloud itself is
developed on such a model {we off load testing onto a set of test machines
but we have a single production machine for all of our development and
business instances}... also note even though we are adding support for
external storage and complex network configurations we currently rarely
need them in our day to day non-cloud consulting work].   Our mental model
of a typical small non-openstack user in the same kind of thing where they
only need very basic services but they are delivered with complete
stability and robustness (setup and forget) from a very small set of
machines in their office.

-- 
Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org
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