公开(公告)号：US20030137938A1

公开(公告)日：2003-07-24

申请号：US10372624

申请日：2003-02-24

Applicant: AT&T Corp.

Inventor： David Gerald Belanger ,  Steven Michael Bellovin ,  Ramon Caceres ,  David C. Nagel

IPC: G01R031/08

CPC classification number: H04L12/1496 ,  H04L12/14 ,  H04L12/1489 ,  H04L47/10 ,  H04L47/11 ,  H04L65/80

Abstract: The present invention permits a network service provider to detect an operational conditionnullsuch as congestionnullin a packet-switched network and to alleviate such congestion by providing customer incentives to avoid use of the network. The detection mechanism triggers an incentive such as the modification of the user's access charges and the customer can be immediately notified of either the occurrence of the congestion or of information regarding the incentive. Usage of the network during congested periods can be deterred by imposing additional access charges during such periodsnullsimilarly, customers can be given a discount to encourage usage during periods of low congestion. An incentive schedule can be tailored to dynamically change the usage patterns of the customers of the network to accommodate the operational conditions in the network. The present invention has application in the Internet, where a detection/notification mechanism, for example, can be implemented in a network node such as a router or in a network endpoint such as a client machine or a proxy or mail server.

Abstract translation: 本发明允许网络服务提供商检测分组交换网络中的诸如拥塞的操作条件，并通过提供客户奖励来避免使用网络来减轻这种拥塞。 检测机制触发诸如修改用户访问费用的激励，并且可以立即通知客户发生拥塞或关于激励的信息。 在充电期间网络的使用可以通过在这样的时间段内施加额外的接入费用来阻止，同样，在低拥塞期间，客户可以被给予折扣以鼓励使用。 可以定制奖励计划以动态地改变网络的客户的使用模式以适应网络中的操作条件。 本发明在因特网中具有应用，其中例如可以在诸如客户机或代理或邮件服务器的网络节点（例如路由器）或网络端点中实现检测/通知机制。

公开(公告)号：US20040123139A1

公开(公告)日：2004-06-24

申请号：US10322189

申请日：2002-12-18

Applicant: AT&T Corp.

Inventor： William A. Aiello ,  Steven Michael Bellovin ,  Evan Stephen Crandall ,  Alan Edward Kaplan ,  David P. Kormann ,  Aviel D. Rubin ,  Norman Loren Schryer

IPC: H04L009/00

CPC classification number: H04L63/0227 ,  H04L63/0272 ,  H04L63/08 ,  H04L63/164

Abstract: Traffic over a secure link or tunnel is filtered to block packets that do not conform to specified requirements for the tunnel. In one embodiment, a private network, such as an ISP network, includes a filter for blocking packets not associated with an IPSec VPN tunnel. The ISP network and/or one or both of the tunnel endpoints can include monitoring modules for detecting the presence of packets that should have been blocked by the filter.

Abstract translation: 过滤通过安全链路或隧道的流量，以阻止不符合隧道规定要求的报文。 在一个实施例中，诸如ISP网络的专用网络包括用于阻止不与IPSec VPN隧道相关联的分组的过滤器。 ISP网络和/或一个或两个隧道端点可以包括用于检测应该被过滤器阻塞的分组的存在的监视模块。