发明申请
US20080253380A1 SYSTEM, METHOD AND PROGRAM TO CONTROL ACCESS TO VIRTUAL LAN VIA A SWITCH
失效
通过开关控制对虚拟LAN的访问的系统，方法和程序
- 专利标题： SYSTEM, METHOD AND PROGRAM TO CONTROL ACCESS TO VIRTUAL LAN VIA A SWITCH
- 专利标题（中）： 通过开关控制对虚拟LAN的访问的系统，方法和程序
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申请号： US11733904申请日： 2007-04-11
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公开(公告)号： US20080253380A1公开(公告)日： 2008-10-16
- 发明人: John Paul Cazares , Jade W. Clifford , Charles Steven Lingafelt , Robert Barry Sisk
- 申请人： John Paul Cazares , Jade W. Clifford , Charles Steven Lingafelt , Robert Barry Sisk
- 申请人地址： US NY Armonk
- 专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址： US NY Armonk
- 主分类号： H04L12/28
- IPC分类号： H04L12/28
摘要：
System method and program for controlling access to a VLAN via a port of a VLAN switch system. In response to receipt of a message packet at the port, the switch system determines if a MAC address of the packet matches a MAC address for which the port has been programmed to recognize as a MAC address of a device authorized to communicate with the port. The MAC address of the packet does not match a MAC address for which the port has been programmed to recognize as a MAC address of a device authorized to communicate with the port. In response, the switch system blocks the packet if a rate of ill-formed packets and/or packets from an unrecognized MAC address exceeds a threshold pass rate. The threshold pass rate can be adjusted based on the rate of change of receipt of ill-formed packets and/or packets from an unrecognized MAC address.
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