公开(公告)号：WO1997037450A1

公开(公告)日：1997-10-09

申请号：PCT/US1997004241

申请日：1997-03-20

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  THOMPSON, Horace

IPC: H04J03/00

CPC classification number: H04J3/14

Abstract: Invalid transmissions in an ATM network (200) are identified by maintaining a user profile (304) relating to network use for each participating node of the network (200) and detecting potentially invalid transmissions based on a deviation (312) from the user profile. In a preferred embodiment, the user profile is continuously updated by monitoring transmissions within the ATM network (200), taking advantage of information included in defined fields of the transmitted ATM cells. When a detected deviation exceeds a predetermined threshold (314), the source node of the transmission is investigated to verify the identity of the source node user. The investigation is accomplished prior to establishing a security link between the source node and a secured node (202), thereby increasing availability of the secured node (202) for use by authorized network users.

Abstract translation: 通过维护与网络（200）的每个参与节点的网络使用有关的用户简档（304）并且基于与用户简档的偏差（312）来检测潜在的无效传输来识别ATM网络（200）中的无效传输。 在优选实施例中，通过利用包括在发送的ATM信元的定义字段中的信息来监视ATM网络（200）内的传输来不断更新用户简档。 当检测到的偏差超过预定阈值（314）时，调查传输的源节点以验证源节点用户的身份。 在建立源节点和安全节点（202）之间的安全链路之前完成调查，从而增加被授权网络用户使用的安全节点（202）的可用性。