公开(公告)号：US20110058552A1

公开(公告)日：2011-03-10

申请号：US12945539

申请日：2010-11-12

申请人： Takao SHIMIZU ,  Yuichi Hotta ,  Yoko Torii ,  Seiji Matsuoka ,  Yuichi Fujita ,  Masanobu Shimakura ,  Maki Harada

发明人： Takao SHIMIZU ,  Yuichi Hotta ,  Yoko Torii ,  Seiji Matsuoka ,  Yuichi Fujita ,  Masanobu Shimakura ,  Maki Harada

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L12/185 ,  H04L41/0896 ,  H04L43/0882 ,  H04L45/16 ,  H04L45/50

摘要： In this invention, an idea of the reverse direction label switched path (RLP) in Multi-Protocol Label Switching (MPLS) is applied to the multicast transmission to improve the management transmission in the multicast transmission, and to easily carry out an additional connection and disconnection. Specifically, in the reverse direction symmetric routing Label switched Path (LP), a virtual label in addition to an input label and an output label is used for the reverse direction routing. However, in this invention, instead of the virtual label, a multicast address to which a client terminal, which is connected to a head of the path on the reverse direction routing, and corresponds to a leaf in the multicast tree, is connected, is registered, as a multicast index, in routers on the path. Then, when receiving a multicast packet including a label and a multicast address, an output label corresponding to the received label is identified, thereby a destination link is identified.

摘要翻译： 在本发明中，将多协议标签交换（MPLS）中的反向标签交换路径（RLP）的思想应用于组播传输，以改善组播传输中的管理传输，并且容易地执行附加连接和 断开。 具体地说，在反方向对称路由标签交换路径（LP）中，除了输入标签之外的虚拟标签和输出标签用于反向路由。 然而，在本发明中，代替虚拟标签，连接到反向路由上的路径的头部并且对应于多播树中的叶的客户端的连接的多播地址是 在路由器上注册，作为组播索引。 然后，当接收到包括标签和多播地址的多播分组时，识别与接收到的标签相对应的输出标签，从而识别目的地链路。

公开(公告)号：US07843896B2

公开(公告)日：2010-11-30

申请号：US11289501

申请日：2005-11-30

申请人： Takao Shimizu ,  Yuichi Hotta ,  Yoko Torii ,  Seiji Matsuoka ,  Yuichi Fujita ,  Masanobu Shimakura ,  Maki Harada

发明人： Takao Shimizu ,  Yuichi Hotta ,  Yoko Torii ,  Seiji Matsuoka ,  Yuichi Fujita ,  Masanobu Shimakura ,  Maki Harada

IPC分类号： H04L12/28 ,  H04J3/24

CPC分类号： H04L45/00 ,  H04L12/185 ,  H04L41/0896 ,  H04L43/0882 ,  H04L45/16 ,  H04L45/50

摘要： In this invention, an idea of the reverse direction label switched path (RLP) in Multi-Protocol Label Switching (MPLS) is applied to the multicast transmission to improve the management transmission in the multicast transmission, and to easily carry out an additional connection and disconnection. Specifically, in the reverse direction symmetric routing Label switched Path (LP), a virtual label in addition to an input label and an output label is used for the reverse direction routing. However, in this invention, instead of the virtual label, a multicast address to which a client terminal, which is connected to a head of the path on the reverse direction routing, and corresponds to a leaf in the multicast tree, is connected, is registered, as a multicast index, in routers on the path. Then, when receiving a multicast packet including a label and a multicast address, an output label corresponding to the received label is identified, thereby a destination link is identified.

摘要翻译： 在本发明中，将多协议标签交换（MPLS）中的反向标签交换路径（RLP）的思想应用于组播传输，以改善组播传输中的管理传输，并且容易地执行附加连接和 断开。 具体地说，在反方向对称路由标签交换路径（LP）中，除了输入标签之外的虚拟标签和输出标签用于反向路由。 然而，在本发明中，代替虚拟标签，连接到反向路由上的路径的头部并且对应于多播树中的叶的客户端的连接的多播地址是 在路由器上注册，作为组播索引。 然后，当接收到包括标签和多播地址的多播分组时，识别与接收到的标签相对应的输出标签，从而识别目的地链路。

公开(公告)号：US20060268934A1

公开(公告)日：2006-11-30

申请号：US11289501

申请日：2005-11-30

申请人： Takao Shimizu ,  Yuichi Hotta ,  Yoko Torii ,  Seiji Matsuoka ,  Yuichi Fujita ,  Masanobu Shimakura ,  Maki Harada

发明人： Takao Shimizu ,  Yuichi Hotta ,  Yoko Torii ,  Seiji Matsuoka ,  Yuichi Fujita ,  Masanobu Shimakura ,  Maki Harada

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L12/185 ,  H04L41/0896 ,  H04L43/0882 ,  H04L45/16 ,  H04L45/50

摘要： In this invention, an idea of the reverse direction label switched path (RLP) in Multi-Protocol Label Switching (MPLS) is applied to the multicast transmission to improve the management transmission in the multicast transmission, and to easily carry out an additional connection and disconnection. Specifically, in the reverse direction symmetric routing Label switched Path (LP), a virtual label in addition to an input label and an output label is used for the reverse direction routing. However, in this invention, instead of the virtual label, a multicast address to which a client terminal, which is connected to a head of the path on the reverse direction routing, and corresponds to a leaf in the multicast tree, is connected, is registered, as a multicast index, in routers on the path. Then, when receiving a multicast packet including a label and a multicast address, an output label corresponding to the received label is identified, thereby a destination link is identified.

摘要翻译： 在本发明中，将多协议标签交换（MPLS）中的反向标签交换路径（RLP）的思想应用于组播传输，以改善组播传输中的管理传输，并且容易地执行附加连接和 断开。 具体地说，在反方向对称路由标签交换路径（LP）中，除了输入标签之外的虚拟标签和输出标签用于反向路由。 然而，在本发明中，代替虚拟标签，连接到反向路由上的路径的头部并且对应于多播树中的叶的客户端的连接的多播地址是 在路由器上注册，作为组播索引。 然后，当接收到包括标签和多播地址的多播分组时，识别与接收到的标签相对应的输出标签，从而识别目的地链路。