Invention Grant
US09106556B2 Method to achieve the use of an external metric as the primary tie-breaker in intermediate system to intermediate system (ISIS) route selections
有权
在中间系统到中间系统(ISIS)路由选择中实现使用外部度量作为主要连接断路器的方法
- Patent Title: Method to achieve the use of an external metric as the primary tie-breaker in intermediate system to intermediate system (ISIS) route selections
- Patent Title (中): 在中间系统到中间系统(ISIS)路由选择中实现使用外部度量作为主要连接断路器的方法
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Application No.: US13763840Application Date: 2013-02-11
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Publication No.: US09106556B2Publication Date: 2015-08-11
- Inventor: Gautam Khera , Ludovico Stevens , Srikanth Keesara
- Applicant: Avaya Inc.
- Applicant Address: US NJ Basking Ridge
- Assignee: AVAYA INC.
- Current Assignee: AVAYA INC.
- Current Assignee Address: US NJ Basking Ridge
- Agency: Anderson Gorecki & Rouille LLP
- Main IPC: H04L12/26
- IPC: H04L12/26 ; H04L12/721

Abstract:
A method, apparatus and computer program product for providing the use of an external metric as the primary tie-breaker in ISIS route selections is presented. A set of routes are identified that are to be advertised by the router as external routes within a network. The routes are advertised by the router using a Type Length Variable (TLV), wherein the TLV contains metric information to be used as a first tiebreaker when selecting routes. The network is running an Intermediate System To Intermediate System (ISIS) protocol. The TLV includes a 32-bit or a 64-bit administrative tag sub-TLV, the TLV comprising TLV#135, TLV#235, TLV#236, and TLV#237.
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