发明授权
- 专利标题： Reducing proliferation of network-to-link-layer address resolution messages
- 专利标题（中）： 减少网络到链路层地址解析消息的扩散
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申请号： US13571794申请日： 2012-08-10
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公开(公告)号： US09455948B2公开(公告)日： 2016-09-27
- 发明人: Ramkumar Sankar , Varagur Chandrasekaran , Murali Basavaiah
- 申请人： Ramkumar Sankar , Varagur Chandrasekaran , Murali Basavaiah
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc.
- 当前专利权人： Cisco Technology, Inc.
- 当前专利权人地址： US CA San Jose
- 代理机构： The Law Office of Kirk D. Williams
- 优先权： IN2034/DEL/2012 20120629
- 主分类号： H04L12/28
- IPC分类号： H04L12/28 ; H04L29/12
摘要：
In one embodiment, the processing by a packet switching device of a received network-to-link-layer address resolution request message (e.g., Address Resolution Protocol [ARP] Request message, Neighbor Discovery Protocol [NDP] Neighbor Solicitation message) is dependent upon whether or not its target IP address corresponds to a network gateway packet switching device. When the target IP address of a received ARP Request/NDP Neighbor Solicitation message corresponds to a network gateway, then the packet switching device responds effectively on behalf of the network gateway, rather than forwarding the message to the network gateway. When the target IP address of a received ARP Request/NDP Neighbor Solicitation message does not correspond to a network gateway and the Media Access Control (MAC) address corresponding to the target IP address is known, then the packet switching device transforms then sends the broadcast or multicast frame into a unicast frame.
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