Invention Grant
- Patent Title: Multi-layer network diagnostic tracing
- Patent Title (中): 多层网络诊断跟踪
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Application No.: US13303615Application Date: 2011-11-23
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Publication No.: US09137101B2Publication Date: 2015-09-15
- Inventor: Srikanth Keesara , David E. Frattura , Deborah E. Fitzgerald , Christopher Monti
- Applicant: Srikanth Keesara , David E. Frattura , Deborah E. Fitzgerald , Christopher Monti
- 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: G01R31/08
- IPC: G01R31/08 ; H04L12/24 ; H04L12/26 ; H04L12/721

Abstract:
A network management and monitoring application employs diagnostic messages for confirming network path connectivity and identifying and locating connectivity faults. Diagnostic messages similar to conventional “ping” and “traceroute” messages traverse the network along a prescribed path for which diagnostic feedback is desired. The application receives and analyzes return messages sent from network entities along the path to ascertain connectivity issues on the path. The application receives layer 3 identifiers such as IP addresses, however performs diagnostic operations such as continuity checks based on layer 2 identifiers such as MAC (Media Access Control) identifiers because certain network entities operate on L2 identifiers and would otherwise evade a continuity check based on layer 3 identifiers. The monitoring application therefore performs continuity diagnostics such as ping and traceroute operations using L2 identifiers, therefore pinpointing problems with an L2 network forwarding entity such as a bridge that lies between L3 entities such as routers.
Public/Granted literature
- US20130128751A1 MULTI-LAYER NETWORK DIAGNOSTIC TRACING Public/Granted day:2013-05-23
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