专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08953446B1 Load balancing multicast join requests over interior and exterior BGP paths in a MVPN 有权
标题翻译：通过MVPN中的内部和外部BGP路径负载平衡组播加入请求
公开(公告)号：US08953446B1
公开(公告)日：2015-02-10
申请号：US13332214
申请日：2011-12-20
申请人： Lili Wang , Rahul Aggarwal , Yakov Rekhter
发明人： Lili Wang , Rahul Aggarwal , Yakov Rekhter
IPC分类号： H04J3/14 , H04L12/28 , H04J3/26 , G06F15/16 , G06F15/173
CPC分类号： H04L12/4641
摘要： A network device receives a join request on a downstream interface, wherein the join request specifies a source device and multicast group, wherein the network device is positioned within a core network of a multicast virtual private network (MVPN) that transmits multicast traffic between the source device and a plurality of receivers associated with customer sites. The network device selects an upstream router to which to send the join request from among a plurality of upstream routers on paths leading to the source device, so as to avoid creating a join request loop in the core network. At least one of the upstream routers is positioned on an Exterior Border Gateway Protocol (EBGP) path toward the source device, and at least one of the upstream routers is positioned on an Interior BGP (IBGP) path toward the source device. The network device sends the join request to the selected upstream device.
摘要翻译：网络设备在下游接口上接收加入请求，其中所述连接请求指定源设备和多播组，其中所述网络设备位于组播虚拟专用网（MVPN）的核心网内，所述多播虚拟专用网（MVPN）在所述源设备和与客户站点相关联的多个接收器。网络设备从通往源设备的路径上从多个上游路由器中选择向其发送加入请求的上游路由器，以避免在核心网络中建立加入请求循环。至少一个上游路由器位于朝向源设备的外部边界网关协议（EBGP）路径上，并且至少一个上游路由器位于朝向源设备的内部BGP（IBGP）路径上。网络设备向所选择的上游设备发送加入请求。

2. 发明授权

US07570605B1 Multicast data trees for multicast virtual private networks 有权
标题翻译：组播虚拟专用网的组播数据树
公开(公告)号：US07570605B1
公开(公告)日：2009-08-04
申请号：US11212500
申请日：2005-08-26
申请人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
发明人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.
摘要翻译：描述了本发明的原理，用于提供跨越公共网络的多播虚拟专用网络（MVPN），所述组播虚拟专用网络能够承载具有增加的可扩展性的高带宽组播流量。特别地，MVPN可以经由公共网络在远程站点之间传输第三层（L3）组播流量，例如因特网协议（IP）分组。本文所描述的原理可以减少维护MVPN的协议无关组播（PIM）邻居邻居和客户控制信息的开销。这些原理还可以通过消除维护每个MVPN至少一个专用多播树的需要来减少维护网络状态的状态和开销。

3. 发明授权

US07564806B1 Aggregate multicast trees for multicast virtual private networks 有权
标题翻译：组播虚拟专用网聚合组播树
公开(公告)号：US07564806B1
公开(公告)日：2009-07-21
申请号：US11212509
申请日：2005-08-26
申请人： Rahul Aggarwal , Yakov Rekhter
发明人： Rahul Aggarwal , Yakov Rekhter
IPC分类号： H04L12/28 , H04W4/00
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.
摘要翻译：描述了本发明的原理，用于提供跨越公共网络的多播虚拟专用网络（MVPN），所述组播虚拟专用网络能够承载具有增加的可扩展性的高带宽组播流量。特别地，MVPN可以经由公共网络在远程站点之间传输第三层（L3）组播流量，例如因特网协议（IP）分组。本文所描述的原理可以减少维护MVPN的协议无关组播（PIM）邻居邻居和客户控制信息的开销。这些原理还可以通过消除维护每个MVPN至少一个专用多播树的需要来减少维护网络状态的状态和开销。

4. 发明授权

US07522600B1 Transport of control and data traffic for multicast virtual private networks 有权
标题翻译：组播虚拟专用网络的控制和数据流量传输
公开(公告)号：US07522600B1
公开(公告)日：2009-04-21
申请号：US11213636
申请日：2005-08-26
申请人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
发明人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
IPC分类号： G06F15/16
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.
摘要翻译：描述了本发明的原理，用于提供跨越公共网络的多播虚拟专用网络（MVPN），所述组播虚拟专用网络能够承载具有增加的可扩展性的高带宽组播流量。特别地，MVPN可以经由公共网络在远程站点之间传输第三层（L3）组播流量，例如因特网协议（IP）分组。本文所描述的原理可以减少维护MVPN的协议无关组播（PIM）邻居邻居和客户控制信息的开销。这些原理还可以通过消除维护每个MVPN至少一个专用多播树的需要来减少维护网络状态的状态和开销。

5. 发明授权

US07522599B1 Label switching multicast trees for multicast virtual private networks 有权
标题翻译：为组播虚拟专用网络标签交换组播树
公开(公告)号：US07522599B1
公开(公告)日：2009-04-21
申请号：US11212475
申请日：2005-08-26
申请人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
发明人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
IPC分类号： H04L12/28 , H04L12/56 , H04L9/00
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.
摘要翻译：描述了本发明的原理，用于提供跨越公共网络的多播虚拟专用网络（MVPN），所述组播虚拟专用网络能够承载具有增加的可扩展性的高带宽组播流量。特别地，MVPN可以经由公共网络在远程站点之间传输第三层（L3）组播流量，例如因特网协议（IP）分组。本文所描述的原理可以减少维护MVPN的协议无关组播（PIM）邻居邻居和客户控制信息的开销。这些原理还可以通过消除维护每个MVPN至少一个专用多播树的需要来减少维护网络状态的状态和开销。

6. 发明授权

US08068492B1 Transport of control and data traffic for multicast virtual private networks 有权
标题翻译：组播虚拟专用网络的控制和数据流量传输
公开(公告)号：US08068492B1
公开(公告)日：2011-11-29
申请号：US12427542
申请日：2009-04-21
申请人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
发明人： Rahul Aggarwal , Yakov Rekhter , Anil Lohiya
IPC分类号： G06F15/16
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.
摘要翻译：描述了本发明的原理，用于提供跨越公共网络的多播虚拟专用网络（MVPN），所述组播虚拟专用网络能够承载具有增加的可扩展性的高带宽组播流量。特别地，MVPN可以经由公共网络在远程站点之间传输第三层（L3）组播流量，例如因特网协议（IP）分组。本文所描述的原理可以减少维护MVPN的协议无关组播（PIM）邻居邻居和客户控制信息的开销。这些原理还可以通过消除维护每个MVPN至少一个专用多播树的需要来减少维护网络状态的状态和开销。

7. 发明授权

US07933267B1 Shared multicast trees for multicast virtual private networks 有权
标题翻译：用于组播虚拟专用网络的共享组播树
公开(公告)号：US07933267B1
公开(公告)日：2011-04-26
申请号：US11213638
申请日：2005-08-26
申请人： Rahul Aggarwal , Yakov Rekhter
发明人： Rahul Aggarwal , Yakov Rekhter
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.
摘要翻译：描述了本发明的原理，用于提供跨越公共网络的多播虚拟专用网络（MVPN），所述组播虚拟专用网络能够承载具有增加的可扩展性的高带宽组播流量。特别地，MVPN可以经由公共网络在远程站点之间传输第三层（L3）组播流量，例如因特网协议（IP）分组。本文所描述的原理可以减少维护MVPN的协议无关组播（PIM）邻居邻居和客户控制信息的开销。这些原理还可以通过消除维护每个MVPN至少一个专用多播树的需要来减少维护网络状态的状态和开销。

8. 发明授权

US07787380B1 Resource reservation protocol with traffic engineering point to multi-point label switched path hierarchy 有权
标题翻译：具有流量工程的资源预留协议指向多点标签交换路径层次
公开(公告)号：US07787380B1
公开(公告)日：2010-08-31
申请号：US11508096
申请日：2006-08-22
申请人： Rahul Aggarwal , Yakov Rekhter
发明人： Rahul Aggarwal , Yakov Rekhter
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26
CPC分类号： H04L45/16 , H04L41/12 , H04L45/10 , H04L45/507 , H04L2001/0093
摘要： The invention is directed toward techniques for Multi-Protocol Label Switching (MPLS) upstream label assignment for the Resource Reservation Protocol with Traffic Engineering (RSVP-TE). The techniques include extensions to the RSVP-TE that enable distribution of upstream assigned labels in Path messages from an upstream router to two or more downstream routers of tunnel established over a network. The tunnel may comprise a RSVP-TE P2MP Label Switched Path (LSP) or an Internet Protocol (IP) multicast tunnel. The techniques also include extensions to the RSVP-TE that enable a router to advertise upstream label assignment capability to neighboring routers in the network. The MPLS upstream label assignment using RSVP-TE described herein enables a branch router to avoid traffic replication on a Local Area Network (LAN) for RSVP-TE P2MP LSPs.
摘要翻译：本发明涉及用于具有流量工程（RSVP-TE）的资源预留协议的多协议标签交换（MPLS）上游标签分配技术。这些技术包括对RSVP-TE的扩展，使得能够在从上游路由器到网络中建立的隧道的两个或更多个下游路由器的路径消息中分配上游分配的标签。隧道可以包括RSVP-TE P2MP标签交换路径（LSP）或因特网协议（IP）组播隧道。这些技术还包括RSVP-TE的扩展，使得路由器能够向网络中的相邻路由器通告上游标签分配能力。使用本文描述的RSVP-TE的MPLS上行标签分配能够使分支路由器避免在局域网（LAN）上进行RSVP-TE P2MP LSP的业务复制。

9. 发明授权

US08160076B1 Auto-discovery of multicast virtual private networks 有权
标题翻译：组播虚拟专用网络的自动发现
公开(公告)号：US08160076B1
公开(公告)日：2012-04-17
申请号：US11213640
申请日：2005-08-26
申请人： Rahul Aggarwal , Yakov Rekhter
发明人： Rahul Aggarwal , Yakov Rekhter
IPC分类号： H04L12/28 , H04L12/56 , G06F15/173
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.
摘要翻译：描述了本发明的原理，用于提供跨越公共网络的多播虚拟专用网络（MVPN），所述组播虚拟专用网络能够承载具有增加的可扩展性的高带宽组播流量。特别地，MVPN可以经由公共网络在远程站点之间传输第三层（L3）组播流量，例如因特网协议（IP）分组。本文所描述的原理可以减少维护MVPN的协议无关组播（PIM）邻居邻居和客户控制信息的开销。这些原理还可以通过消除维护每个MVPN至少一个专用多播树的需要来减少维护网络状态的状态和开销。

10. 发明授权

US07990963B1 Exchange of control information for virtual private local area network (LAN) service multicast 有权
标题翻译：交换虚拟专用局域网（LAN）服务组播的控制信息
公开(公告)号：US07990963B1
公开(公告)日：2011-08-02
申请号：US12469075
申请日：2009-05-20
申请人： Rahul Aggarwal , Yakov Rekhter
发明人： Rahul Aggarwal , Yakov Rekhter
IPC分类号： H04L12/28 , H04L12/56 , H04J3/26 , G06F15/16
CPC分类号： H04L12/4641 , H04L12/18 , H04L12/1886
摘要： Principles of the invention are described for providing virtual private local area network service (VPLS) multicast instances across a public network by utilizing multicast trees. In particular, the VPLS multicast instances transport layer two (L2) multicast traffic, such as Ethernet packets, between customer networks via the public network. The principles described herein enable VPLS multicast instances to handle high bandwidth multicast traffic. The principles also reduce the state and the overhead of maintaining the state in the network by removing the need to perform snooping between routers within the network.
摘要翻译：描述了通过利用多播树在公共网络上提供虚拟专用局域网服务（VPLS）组播实例的本发明的原理。特别地，VPLS组播实例通过公共网络在客户网络之间传输第二层（L2）组播流量，例如以太网分组。本文描述的原理使VPLS组播实例能够处理高带宽组播流量。这些原则还通过消除在网络中的路由器之间进行窥探的需要来减少维护网络状态的状态和开销。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式