发明申请
US20130089097A1 Forwarding IPv6 Packets based on Shorter Addresses Derived from Their IPv6 Destination Addresses
有权
基于IPv6目标地址的较短地址转发IPv6数据包
- 专利标题： Forwarding IPv6 Packets based on Shorter Addresses Derived from Their IPv6 Destination Addresses
- 专利标题（中）： 基于IPv6目标地址的较短地址转发IPv6数据包
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申请号： US13253674申请日： 2011-10-05
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公开(公告)号： US20130089097A1公开(公告)日： 2013-04-11
- 发明人: Clarence Filsfils , Stefano Benedetto Previdi , Ian Michael Charles Shand , John H. W. Bettink
- 申请人： Clarence Filsfils , Stefano Benedetto Previdi , Ian Michael Charles Shand , John H. W. Bettink
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc., a corporation of California
- 当前专利权人： Cisco Technology, Inc., a corporation of California
- 当前专利权人地址： US CA San Jose
- 主分类号： H04L12/56
- IPC分类号： H04L12/56
摘要：
In one embodiment, a packet switching device is configured to convert an Internet Protocol Version 6 (IPv6) destination address, of a received particular IPv6 packet, to a second, shorter destination address. This second destination address is then used to determine forwarding information for the received IPv6 packet, which is forwarded accordingly. In one embodiment, this second address is a 32-bit address, and in particular, an Internet Protocol Version 4 (IPv4) address. Thus, one embodiment can use the IPv4 forwarding infrastructure of a packet switching device for determining how to forward IPv6 packets. In a network according to one embodiment, packets are encapsulated in an IPv6 packet using an IPv6 destination address (that can be converted to an IPv4 address) of an egress edge packet switching device. Thus, core packet switching devices can forward IPv6 packets using IPv4 lookup operations.
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