Invention Grant
- Patent Title: Maintaining information of TE link
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Application No.: US15500622Application Date: 2015-07-30
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Publication No.: US10320682B2Publication Date: 2019-06-11
- Inventor: Jinrong Ye
- Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD.
- Applicant Address: US TX Houston
- Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee Address: US TX Houston
- Agency: Nolte Intellectual Property Law Group
- Priority: CN201410371036 20140731
- International Application: PCT/CN2015/085519 WO 20150730
- International Announcement: WO2016/015656 WO 20160204
- Main IPC: H04L12/803
- IPC: H04L12/803 ; H04Q11/04 ; H04L12/723 ; H04L12/911

Abstract:
A Path Computation Element (PCE) in a Multi-Protocol Label Switching (MPLS) network receives initial information of all Traffic Engineering (TE) links that is reported by a Label Switching Router (LSR), and stores the initial information into a TE database (TEDB). For the information of each TE link, the PCE determines initial values of pending bandwidth, reserved bandwidth and unreserved bandwidth of each TE-Class in the information of the TE link, and stores the initial values into the TEDB. The PCE receives a Constraint-based Routed Label Switched Path (CRLSP) calculation request from a Path Computation Client (PCC), calculates a Label Switched Path (LSP) according to the information of each TE link stored in the TEDB, and updates pending bandwidth, reserved bandwidth and unreserved bandwidth of TE-Class in the information of TE link corresponding to the LSP, wherein the information of TE link corresponding to the LSP is stored in the TEDB.
Public/Granted literature
- US20170222934A1 MAINTAINING INFORMATION OF TE LINK Public/Granted day:2017-08-03
Information query