发明名称 |
SYSTEM AND METHOD FOR COMPUTING A BACKUP EGRESS OF A POINT-TO-MULTI-POINT LABEL SWITCHED PATH |
摘要 |
An apparatus for requesting computation of a backup egress path comprising a processor configured to send a path computation element (PCE) protocol (PCEP) request (PCReq) message requesting computation of the backup egress path to protect against a fault in a primary egress path of a Point to Multi-Point (P2MP) or Point-to-Point (P2P) label switched path (LSP), wherein the backup egress path extends from a previous-hop internal node of the primary egress node of the P2MP or P2P LSP to a backup egress node. A method for advertising or discovering a backup egress path computation capability comprising exchanging a message that indicates that a PCE comprises a backup egress path computation capability. |
申请公布号 |
EP2625829(A1) |
申请公布日期 |
2013.08.14 |
申请号 |
EP20110832162 |
申请日期 |
2011.10.17 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
CHEN, HUAIMO |
分类号 |
H04L12/711;H04L12/707;(IPC1-7):H04L12/56 |
主分类号 |
H04L12/711 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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