发明授权
- 专利标题： Techniques for migrating a point to point protocol to a protocol for an access network
- 专利标题（中）： 将点对点协议迁移到接入网络的协议的技术
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申请号： US12335841申请日： 2008-12-16
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公开(公告)号： US08086749B2公开(公告)日： 2011-12-27
- 发明人: William Mark Townsley , Huw Jones , Vincent John Mammoliti
- 申请人： William Mark Townsley , Huw Jones , Vincent John Mammoliti
- 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： Patent Capital Group
- 主分类号： G06F15/16
- IPC分类号： G06F15/16
摘要：
Techniques for managing a persistent session associated with a particular Media Access Control (MAC) include determining at a broadband remote access server whether an elapsed time since a data packet is received with the particular MAC address exceeds a threshold time. If so, then point-to-point protocol (PPP) control data is sent in a data link protocol payload that is encapsulated in a data packet with an Ethernet destination field that indicates the particular MAC address. The PPP control data indicates a request for an echo. It is determined whether a data packet with the particular MAC address in an Ethernet source field is received within a particular time interval. If not, then a session associated with the particular MAC address is terminated. These techniques allow PPP control plane functionality while utilizing IP over Ethernet for the data plane.
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