发明名称 |
High-availability packet forwarding apparatus and method |
摘要 |
Failover protection is provided on the same facilities for a network connection passing through a high-availability router having shared resources managed by two control processors that respectively maintain a forwarding information bases (FIB). The two processors run asynchronously in a master/standby relationship. Integrity of processes running on the control processors is monitored and a forwarding engine forwards packets according to a FIB maintained by an in-service one of the control processors. If one of the control processors fails, the other control processor uses the same bandwidth on the same facility to continue forwarding packets for a network connection. Identifiers in each packet associated with the network connection are used to indicate the reserved bandwidth associated with the network connection.
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申请公布号 |
US7342874(B2) |
申请公布日期 |
2008.03.11 |
申请号 |
US20030449112 |
申请日期 |
2003.06.02 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
PEGRUM SCOTT S.;YUEN MATTHEW M.;OULD-BRAHIM NABILA;WILBUR GREGORY A. |
分类号 |
G06F11/00;G01R31/08;G08C15/00;H04L1/00;H04L12/26;H04L12/46;H04L12/56 |
主分类号 |
G06F11/00 |
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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