发明名称 |
Apparatus for link failure detection on high availability Ethernet backplane |
摘要 |
A method for actively detecting link failures on a high availability backplane architecture. The backplane system includes redundant node boards operatively communicating with redundant switch fabric boards. Uplink ports of the node boards are logically grouped into trunk ports at one end of the communication link with the switch fabric boards. A probe packet is sent, and a probing timer is set whenever either a specified number of bad packets are received, or an idle timer expires. If a response to the probe packet is received before the probe timer expires then the link is deemed valid, otherwise the link is presumed to have failed. Preferably, either the node boards or the switch fabric boards are configured to properly handle a probe pack, which preferably has identical source and destination addresses.
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申请公布号 |
US2004085894(A1) |
申请公布日期 |
2004.05.06 |
申请号 |
US20020326352 |
申请日期 |
2002.12.20 |
申请人 |
WANG LINGHSIAO;CHANG RONG-FENG;LIN ERIC (A.K.A. CHANGHWA);YIK JAMES CHING-SHAU |
发明人 |
WANG LINGHSIAO;CHANG RONG-FENG;LIN ERIC (A.K.A. CHANGHWA);YIK JAMES CHING-SHAU |
分类号 |
H04L1/00;G06F11/20;H04L12/24;H04L12/26;H04L12/413;H04L12/44;H04L12/56;H04L29/14;(IPC1-7):G01R31/08 |
主分类号 |
H04L1/00 |
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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