公开(公告)号：US20050198382A1

公开(公告)日：2005-09-08

申请号：US10765756

申请日：2004-01-27

申请人： Robert Salmi ,  Michael Rowlee ,  Thomas Barron ,  Stuart Stanley ,  Haldane Peterson ,  David Ward ,  David Bergum

发明人： Robert Salmi ,  Michael Rowlee ,  Thomas Barron ,  Stuart Stanley ,  Haldane Peterson ,  David Ward ,  David Bergum

IPC分类号： G06F15/173

CPC分类号： H04L45/00 ,  H04L45/54

摘要： In some embodiments, a method and routing system parameterize a routing policy and apply the parameterized-routing policy to a route. Parameters are assigned to at least some policy statements of the policy. The parameterized policy may be called with parameters stored in a parameter table. In some embodiments, common blocks of the policy may be identified and assigned parameter sets. A commonized routing policy may be reused within more than one policy. In some embodiments, a method and routing system may evaluate a configuration file to determine relationships between route attributes. The relationships may be expressed in one or more mathematical functions, and when a route is received from a peer, the attributes of the route may be modified based on the mathematical functions. In some embodiments, a router and method for implementing routing policy and traffic engineering are provided. Routing policy may be implemented by performing a policy translation on a policy configuration to generate an internal-policy representation. Attribute-operator pairings of the internal-policy representation may be verified with one or more client dynamic load libraries (DLLs). When the attribute-operator pairings have been verified, the internal-policy representation may be compiled and stored in a system database. A client protocol may be notified that the routing policy has been modified.

摘要翻译： 在一些实施例中，方法和路由系统参数化路由策略并将参数化路由策略应用于路由。 参数分配给策略的至少一些策略语句。 可以使用参数表中存储的参数调用参数化策略。 在一些实施例中，策略的公共块可以被识别和分配参数集。 公共路由策略可以在多个策略中重用。 在一些实施例中，方法和路由系统可以评估配置文件以确定路由属性之间的关系。 关系可以用一个或多个数学函数表示，并且当从对等体接收到路由时，可以基于数学函数来修改路由的属性。 在一些实施例中，提供了用于实现路由策略和流量工程的路由器和方法。 可以通过在策略配置上执行策略转换来生成内部策略表示来实现路由策略。 可以使用一个或多个客户端动态加载库（DLL）验证内部策略表示的属性 - 运算符配对。 当属性 - 运算符配对已被验证时，内部策略表示可以被编译并存储在系统数据库中。 可以通知客户端协议路由策略已被修改。