作者: Pierre Rolin , Olivier Paul , Sylvain Gombault , Jean-Louis Simon , Maknavicius Maryline Laurent
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摘要: The invention concerns an access control device comprising signalling analysis means (4) and traffic (20, 21) connected to ATM switch (3) configured cause messages exchanged between internal external networks pass through the analysing means, carrying cells in context of connections set up by said means. Control management (7) dynamically configure according policy data collected so that filter each cell conformity with policy.