MULTICAST VPN SUPPORT FOR IP-VPN LITE
    1.
    发明申请
    MULTICAST VPN SUPPORT FOR IP-VPN LITE 有权
    IP-VPN LITE的MULTICAST VPN支持

    公开(公告)号:US20120170578A1

    公开(公告)日:2012-07-05

    申请号:US12980885

    申请日:2010-12-29

    IPC分类号: H04L12/56

    摘要: Techniques disclosed herein include systems and methods for providing multicast Virtual Private Network (VPN) support for IP VPN networks, including IP VPN-lite networks. Such techniques provide multicast VPN capability over an IP unicast core network by creating a multicast service VLAN and IP interface, which is used for multicast control traffic exchange between VPN instances. Multicast VPN data traffic is then carried over unicast IP-in-IP tunnels. A given ingress Provide Edge (PE) replicates the multicast traffic for all receiving egress PEs, and adds control information so that the multicast traffic appears as unicast traffic to the Core network. With such a technique, a given Core network only needs to run an IP unicast that is free of VPN unicast or multicast route or tree information.

    摘要翻译: 本文公开的技术包括为IP VPN网络(包括IP VPN-Lite网络)提供组播虚拟专用网(VPN)支持的系统和方法。 这种技术通过创建组播业务VLAN和IP接口,通过IP单播核心网提供组播VPN能力,用于VPN实例之间的组播控制流量交换。 组播VPN数据流量然后通过单播IP-in-IP隧道传输。 给定的入口提供边缘(PE)复制所有接收出口PE的组播流量,并添加控制信息,使得组播流量以单播流量出现到核心网络。 通过这种技术,给定的核心网络只需要运行一个没有VPN单播或组播路由或树信息的IP单播。

    Multicast VPN support for IP-VPN lite
    2.
    发明授权
    Multicast VPN support for IP-VPN lite 有权
    组播VPN支持IP-VPN lite

    公开(公告)号:US08537816B2

    公开(公告)日:2013-09-17

    申请号:US12980885

    申请日:2010-12-29

    IPC分类号: H04L12/28 H04L12/56

    摘要: Techniques disclosed herein include systems and methods for providing multicast Virtual Private Network (VPN) support for IP VPN networks, including IP VPN-lite networks. Such techniques provide multicast VPN capability over an IP unicast core network by creating a multicast service VLAN and IP interface, which is used for multicast control traffic exchange between VPN instances. Multicast VPN data traffic is then carried over unicast IP-in-IP tunnels. A given ingress Provide Edge (PE) replicates the multicast traffic for all receiving egress PEs, and adds control information so that the multicast traffic appears as unicast traffic to the Core network. With such a technique, a given Core network only needs to run an IP unicast that is free of VPN unicast or multicast route or tree information.

    摘要翻译: 本文公开的技术包括为IP VPN网络(包括IP VPN-Lite网络)提供组播虚拟专用网(VPN)支持的系统和方法。 这种技术通过创建组播业务VLAN和IP接口,通过IP单播核心网提供组播VPN能力,用于VPN实例之间的组播控制流量交换。 组播VPN数据流量然后通过单播IP-in-IP隧道传输。 给定的入口提供边缘(PE)复制所有接收出口PE的组播流量,并添加控制信息,使得组播流量以单播流量出现到核心网络。 通过这种技术,给定的核心网络只需要运行一个没有VPN单播或组播路由或树信息的IP单播。

    Method and apparatus for simulating IP multinetting
    3.
    发明授权
    Method and apparatus for simulating IP multinetting 失效
    用于模拟IP多线程的方法和装置

    公开(公告)号:US08699492B2

    公开(公告)日:2014-04-15

    申请号:US13286241

    申请日:2011-11-01

    IPC分类号: H04L12/28

    摘要: IP Multinetting on a local area network is simulated by performing VLAN translation at a port connecting to the local area network. This allows IP addresses from multiple subnets to be associated with a single VLAN on the Local Area Network (LAN), while allowing the core switch to process the packets with a one-to-one correspondence between IP Subnet and VLAN. When a packet is received from the local area network at an IP multinetting port, the VLAN ID will be read to determine if the packet contains the IP Multinetting VLAN ID. The IP Subnet address will also be checked to see if the packet is associated with an IP Subnet that is part of the Multinetting. If so, the multinetting VLAN ID will be changed to an IP Subnet specific VLAN ID before the packet is processed by the core switch.

    摘要翻译: 通过在连接局域网的端口上进行VLAN转换来模拟局域网上的IP Multinetting。 这允许来自多个子网的IP地址与局域网(LAN)上的单个VLAN相关联,同时允许核心交换机以IP子网和VLAN之间一一对应的方式处理数据包。 当在IP多端口从局域网接收到数据包时,将读取VLAN ID,以确定该数据包是否包含IP Multinetting VLAN ID。 还将检查IP子网地址,以查看该数据包是否与作为Multinetting一部分的IP子网相关联。 如果是这样,在核心交换机处理数据包之前,多VLAN VLAN将被更改为IP子网特定的VLAN ID。

    Method and Apparatus for Simulating IP Multinetting
    4.
    发明申请
    Method and Apparatus for Simulating IP Multinetting 失效
    用于模拟IP多线程的方法和装置

    公开(公告)号:US20120044937A1

    公开(公告)日:2012-02-23

    申请号:US13286241

    申请日:2011-11-01

    IPC分类号: H04L12/56

    摘要: IP Multinetting on a local area network is simulated by performing VLAN translation at a port connecting to the local area network. This allows IP addresses from multiple subnets to be associated with a single VLAN on the Local Area Network (LAN), while allowing the core switch to process the packets with a one-to-one correspondence between IP Subnet and VLAN. When a packet is received from the local area network at an IP multinetting port, the VLAN ID will be read to determine if the packet contains the IP Multinetting VLAN ID. The IP Subnet address will also be checked to see if the packet is associated with an IP Subnet that is part of the Multinetting. If so, the multinetting VLAN ID will be changed to an IP Subnet specific VLAN ID before the packet is processed by the core switch.

    摘要翻译: 通过在连接局域网的端口上进行VLAN转换来模拟局域网上的IP Multinetting。 这允许来自多个子网的IP地址与局域网(LAN)上的单个VLAN相关联,同时允许核心交换机以IP子网和VLAN之间一一对应的方式处理数据包。 当在IP多端口从局域网接收到数据包时,将读取VLAN ID,以确定该数据包是否包含IP Multinetting VLAN ID。 还将检查IP子网地址,以查看该数据包是否与作为Multinetting一部分的IP子网相关联。 如果是这样,在核心交换机处理数据包之前,多VLAN VLAN将被更改为IP子网特定的VLAN ID。

    Method and apparatus for simulating IP multinetting
    5.
    发明授权
    Method and apparatus for simulating IP multinetting 有权
    用于模拟IP多线程的方法和装置

    公开(公告)号:US08064458B2

    公开(公告)日:2011-11-22

    申请号:US12490180

    申请日:2009-06-23

    IPC分类号: H04L12/28

    摘要: IP Multinetting on a local area network is simulated by performing VLAN translation at a port connecting to the local area network. This allows IP addresses from multiple subnets to be associated with a single VLAN on the Local Area Network (LAN), while allowing the core switch to process the packets with a one-to-one correspondence between IP Subnet and VLAN. When a packet is received from the local area network at an IP multinetting port, the VLAN ID will be read to determine if the packet contains the IP Multinetting VLAN ID. The IP Subnet address will also be checked to see if the packet is associated with an IP Subnet that is part of the Multinetting. If so, the multinetting VLAN ID will be changed to an IP Subnet specific VLAN ID before the packet is processed by the core switch. In the reverse direction, IP subnet specific VLAN IDs will be translated to the IP Multinetting VLAN ID.

    摘要翻译: 通过在连接局域网的端口上进行VLAN转换来模拟局域网上的IP Multinetting。 这允许来自多个子网的IP地址与局域网(LAN)上的单个VLAN相关联,同时允许核心交换机以IP子网和VLAN之间一一对应的方式处理数据包。 当在IP多端口从局域网接收到数据包时,将读取VLAN ID,以确定该数据包是否包含IP Multinetting VLAN ID。 还将检查IP子网地址,以查看该数据包是否与作为Multinetting一部分的IP子网相关联。 如果是这样,在核心交换机处理数据包之前,多VLAN VLAN将被更改为IP子网特定的VLAN ID。 在相反的方向上,IP子网特定的VLAN ID将被转换为IP Multinetting VLAN ID。

    Method and Apparatus for Simulating IP Multinetting
    6.
    发明申请
    Method and Apparatus for Simulating IP Multinetting 有权
    用于模拟IP多线程的方法和装置

    公开(公告)号:US20100322253A1

    公开(公告)日:2010-12-23

    申请号:US12490180

    申请日:2009-06-23

    IPC分类号: H04L12/28

    摘要: IP Multinetting on a local area network is simulated by performing VLAN translation at a port connecting to the local area network. This allows IP addresses from multiple subnets to be associated with a single VLAN on the Local Area Network (LAN), while allowing the core switch to process the packets with a one-to-one correspondence between IP Subnet and VLAN. When a packet is received from the local area network at an IP multinetting port, the VLAN ID will be read to determine if the packet contains the IP Multinetting VLAN ID. The IP Subnet address will also be checked to see if the packet is associated with an IP Subnet that is part of the Multinetting. If so, the multinetting VLAN ID will be changed to an IP Subnet specific VLAN ID before the packet is processed by the core switch. In the reverse direction, IP subnet specific VLAN IDs will be translated to the IP Multinetting VLAN ID.

    摘要翻译: 通过在连接局域网的端口上进行VLAN转换来模拟局域网上的IP Multinetting。 这允许来自多个子网的IP地址与局域网(LAN)上的单个VLAN相关联,同时允许核心交换机以IP子网和VLAN之间一一对应的方式处理数据包。 当在IP多端口从局域网接收到数据包时,将读取VLAN ID,以确定该数据包是否包含IP Multinetting VLAN ID。 还将检查IP子网地址,以查看该数据包是否与作为Multinetting一部分的IP子网相关联。 如果是这样,在核心交换机处理数据包之前,多VLAN VLAN将被更改为IP子网特定的VLAN ID。 在相反的方向上,IP子网特定的VLAN ID将被转换为IP Multinetting VLAN ID。

    Method and Apparatus for Enabling Multicast Route Leaking Between VRFs in Different VPNs
    7.
    发明申请
    Method and Apparatus for Enabling Multicast Route Leaking Between VRFs in Different VPNs 审中-公开
    在不同VPN中的VRF之间启用组播路由泄漏的方法和装置

    公开(公告)号:US20100329252A1

    公开(公告)日:2010-12-30

    申请号:US12492577

    申请日:2009-06-26

    IPC分类号: H04L12/56

    摘要: Multicast route leaking between VRFs in different VPNs enables receivers in different VPNs to subscribe to the same IP multicast so that an efficient IP multicast distribution tree can be built to include subscribers in multiple VPNs. VRFs are administratively configured to implement multicast route leaking and each such configured VRF brings up an internal connectionless IP interface. The VRFs then enable the multicast routing protocol (e.g. PIM) on the internal IP interface to establish PIM neighborships with each other. When a VRF receives an IGMP join from a receiver, it uses PIM to join the receiver to the multicast over the internal IP interface. This enables receivers outside of a VPN but associated with VRFs that are co-located on the same PE to join multicasts established within the VPN so that separate multicast distribution trees are not required for each VPN.

    摘要翻译: 在不同VPN中的VRF之间的组播路由泄漏使得不同VPN中的接收者可以订阅相同的IP组播,从而可以构建有效的IP组播分发树,以将用户包括在多个VPN中。 VRF管理配置为实现组播路由泄漏,每个这样配置的VRF都会产生一个内部无连接IP接口。 然后,VRF使得内部IP接口上的组播路由协议(例如PIM)能够建立彼此的PIM邻居。 当VRF从接收者接收IGMP加入时,使用PIM通过内部IP接口将接收者加入组播。 这使得接收机不在VPN之外但与位于同一PE上的VRF相关联,以加入在VPN内建立的组播,以便每个VPN不需要单独的组播分发树。