发明名称 |
Internet protocol layer processor |
摘要 |
An internet protocol (IP) layer processor has an IP header processing section for checking a defect in an IP header of a first ATM cell of an AAL5 frame, and a SAR (segregation and reassemblage) section for transferring the AAL5 frame in the form of separate ATM cells if the check by the IP header processing section indicates a normal IP header, without using a CPU. SAR notifies a defect in the IP header to CPU without transmission of the AAL5 frame if the check indicates the defect in the IP header. The IP layer processor achieves a higher processing due to the direct transfer by the SAR without using processing by a software.
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申请公布号 |
US6418145(B1) |
申请公布日期 |
2002.07.09 |
申请号 |
US19980213931 |
申请日期 |
1998.12.17 |
申请人 |
NEC CORPORATION |
发明人 |
ISOYAMA KAZUHIKO;AMAGAI TATSUHIKO;ARAMAKI TOSHIYA |
分类号 |
H04Q3/00;H04L12/56;H04L29/06;H04Q11/04;(IPC1-7):H04L12/56 |
主分类号 |
H04Q3/00 |
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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