发明名称 |
L2 SWITCH CONTINUITY CHECK SYSTEM, L2 SWITCH, AND L2 SWITCH CONTINUITY CHECK METHOD |
摘要 |
PROBLEM TO BE SOLVED: To attain an improvement in network maintainability and decrease operation cost for a wide area Ethernet service using L2 switches. SOLUTION: The normality of packet continuity between adjacent L2 switches or over a plurality of L2 switches (continuity check mode), verification on which L2 switch is passed and conducted (switch continuity trace mode), and the detection of a network loop are established to be checked by a test by remote operation according to a packet having a test MAC address as its destination and a definition for a test operation mode at the time of reception. COPYRIGHT: (C)2005,JPO&NCIPI
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申请公布号 |
JP2004364065(A) |
申请公布日期 |
2004.12.24 |
申请号 |
JP20030161327 |
申请日期 |
2003.06.05 |
申请人 |
NEC CORP;NEC COMMUN SYST LTD |
发明人 |
MINAMI HIDETAKA;KATABAMI TAKESHI;ABE TAKAMI |
分类号 |
H04L12/26;H04L12/28;(IPC1-7):H04L12/26 |
主分类号 |
H04L12/26 |
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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