发明名称 |
Asynchronous packet switching with common time reference |
摘要 |
The invention describes a method for transmitting and forwarding packets over a packet switching network. The switches of the network maintain a common time reference, which is obtained either from an external source (such as GPS-Global Positioning System) or is generated and distributed internally. The time intervals are arranged in simple periodicity and complex periodicity (like seconds and minutes of a clock). A packet that arrives to an input port of a switch, is switched to an output port based on specific routing information in the packet header (e.g., IPv4 destination address in the Internet, VCI/VPI labels in ATM). Each switch along a route from a source to a destination forwards packets in periodic time intervals that are predefined using the common time reference. The time interval duration can be longer than the time duration required for transmitting a packet, in which case the exact position of a packet in the time interval is not predetermined.
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申请公布号 |
US6272132(B1) |
申请公布日期 |
2001.08.07 |
申请号 |
US19980120944 |
申请日期 |
1998.07.22 |
申请人 |
SYNCHRODYNE NETWORKS, INC. |
发明人 |
OFEK YORAM;SHACHAM NACHUM |
分类号 |
H04J3/06;H04L12/56;H04L12/64;H04L29/06;(IPC1-7):H04L12/56 |
主分类号 |
H04J3/06 |
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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