专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO03012672A2 SELECTIVE ROUTING OF DATA FLOWS USING A TCAM 审中-公开
标题翻译：使用TCAM的数据流选择性路由
公开(公告)号：WO03012672A2
公开(公告)日：2003-02-13
申请号：PCT/US0221229
申请日：2002-07-03
申请人： NOKIA INC
发明人： MATE ASHUTOSH , MAHAMUNI ATUL , CHANDER VIJAY
IPC分类号： H04L12/56 , G06F15/173
CPC分类号： H04L47/6215 , H04L12/5601 , H04L45/00 , H04L45/50 , H04L45/54 , H04L45/7457 , H04L47/10 , H04L47/2441 , H04L47/50 , H04L47/627 , H04L49/90 , H04L49/901 , H04L49/9036 , H04L49/9047 , H04L49/9073
摘要： The present invention relates to a method and system for supporting in a router a plurality of data flows using a ternary content addressable memory (TCAM) (30) in which the number of accesses to write to the TCAM (30) is optimized to improve efficiency of updating and subsequent look up. To accommodate the plurality of data flows, the TCAM is partitioned into at least two partitions in which a first portion includes indices (32) having a higher priority and a second portion includes indices having a lower priority. For example, multiple protocol label switching (MPLS) flows and IP-Virtual Private Network (VPN) (36) can be added to the first partition and policy based routing flows can be added to the second partition. During subsequent TCAM look-up of a prefix of an incoming packet the MPLS or IP-VPN flow will subsume any matching policy based routing flow, such as flows classified by an access control list or traffic manager flows.
摘要翻译：本发明涉及一种使用三进制内容可寻址存储器（TCAM）（30）在路由器中支持多个数据流的方法和系统，其中对TCAM（30）写入的访问次数被优化以提高效率的更新和随后的查找。为了适应多个数据流，TCAM被划分为至少两个分区，其中第一部分包括具有较高优先级的索引（32），第二部分包括具有较低优先级的索引。例如，可以将多协议标签交换（MPLS）流和IP虚拟专用网（VPN）（36）添加到第一分区，并且基于策略的路由流可以被添加到第二分区。在随后的TCAM查询中，进入分组的前缀，MPLS或IP-VPN流将包含任何基于匹配策略的路由流，例如由访问控制列表或流量管理器流分类的流。

IPRDB

热门服务

关于我们

友情链接

联系方式