Method and apparatus for transparent intermediate system based filtering on a LAN multicast packets
    1.
    发明授权
    Method and apparatus for transparent intermediate system based filtering on a LAN multicast packets 有权
    基于LAN组播数据包的透明中间系统过滤方法和装置

    公开(公告)号:US06169741A

    公开(公告)日:2001-01-02

    申请号:US09369495

    申请日:1999-08-05

    IPC分类号: H04L1228

    摘要: A bridge (62) capable of reducing unwanted WAN multicast packet traffic in a LAN and an associated method and an associated LAN is disclosed. The bridge examines the contents of WAN multicast query and report packets and WAN multicast router-to-router discovery packets and includes this information in its filtering database (88). The bridge designates ports on which query packets or MRRDPs are received as router ports. When there is no WAN router generating multicast query packets into the LAN, the bridge simulates the behavior of a WAN router and generates WAN multicast query packets so as to cause report packet generation by end systems. A timeout interval for undesignating router ports and a method for determining an appropriate timeout for a port is disclosed.

    摘要翻译: 公开了能够减少LAN中的不需要的WAN组播数据包流量的桥(62),以及相关联的方法和相关联的LAN。 该网桥检查WAN组播查询,报告报文和WAN组播路由器到路由器发现报文的内容,并将其包含在其过滤数据库(88)中。 桥接器指定接收到查询数据包或MRRDP作为路由器端口的端口。 当没有WAN路由器生成组播查询报文到局域网时,桥接器模拟WAN路由器的行为,并生成WAN组播查询报文,从而使终端系统生成报告报文。 公开了一种用于不指定路由器端口的超时间隔以及用于确定端口适当超时的方法。

    Method and apparatus for transparent intermediate system based filtering
on a LAN of multicast packets
    2.
    发明授权
    Method and apparatus for transparent intermediate system based filtering on a LAN of multicast packets 失效
    基于组播数据包LAN的基于透明中间系统过滤的方法和装置

    公开(公告)号:US5999530A

    公开(公告)日:1999-12-07

    申请号:US761574

    申请日:1996-12-06

    摘要: A bridge (62) capable of reducing unwanted WAN multicast packet traffic in a LAN and an associated method and an associated LAN is disclosed. The bridge examines the contents of WAN multicast query and report packets and WAN multicast router-to-router discovery packets and includes this information in its filtering database (88). The bridge designates ports on which query packets or MRRDPs are received as router ports. When there is no WAN router generating multicast query packets into the LAN, the bridge simulates the behavior of a WAN router and generates WAN multicast query packets so as to cause report packet generation by end systems. A timeout interval for undesignating router ports and a method for determining an appropriate timeout for a port is disclosed.

    摘要翻译: 公开了能够减少LAN中的不需要的WAN组播数据包流量的桥(62),以及相关联的方法和相关联的LAN。 该网桥检查WAN组播查询,报告报文和WAN组播路由器到路由器发现报文的内容,并将其包含在其过滤数据库(88)中。 桥接器指定接收到查询数据包或MRRDP作为路由器端口的端口。 当没有WAN路由器生成组播查询报文到局域网时,桥接器模拟WAN路由器的行为,并生成WAN组播查询报文,从而使终端系统生成报告报文。 公开了一种用于不指定路由器端口的超时间隔以及用于确定端口适当超时的方法。

    Method and apparatus for transparent intermediate system based filtering
on a LAN of multicast packets
    3.
    发明授权
    Method and apparatus for transparent intermediate system based filtering on a LAN of multicast packets 失效
    基于组播数据包LAN的基于透明中间系统过滤的方法和装置

    公开(公告)号:US5818838A

    公开(公告)日:1998-10-06

    申请号:US542157

    申请日:1995-10-12

    摘要: A bridge (62) capable of reducing unwanted WAN multicast packet traffic in a LAN is disclosed. The bridge examines the contents of WAN multicast query and report packets and includes this information in its filtering database (88). The bridge designates ports on which query packets are received as query ports. When there is no WAN router generating multicast query packets into the LAN, the bridge simulates the behavior of a WAN router and generates WAN multicast query packets so as to cause report packet generation by end systems. A timeout interval for undesignating query ports and a method for determining an appropriate timeout for a port is disclosed.

    摘要翻译: 公开了一种能够减少LAN中不想要的WAN组播数据包流量的桥接器(62)。 网桥检查WAN组播查询和报告数据包的内容,并将其包含在其过滤数据库(88)中。 桥指定接收查询报文的端口作为查询端口。 当没有WAN路由器生成组播查询报文到局域网时,桥接器模拟WAN路由器的行为,并生成WAN组播查询报文,从而使终端系统生成报告报文。 公开了一种用于不指定查询端口的超时间隔和一种用于确定端口适当超时的方法。