公开(公告)号：US08204967B2

公开(公告)日：2012-06-19

申请号：US10824725

申请日：2004-04-14

申请人： Rajiv Goel ,  Jianyu Chen ,  Scott Molloy ,  Chung T. Nguyen ,  David Ward ,  John Bettink ,  Peramanayagam Marimuthu

发明人： Rajiv Goel ,  Jianyu Chen ,  Scott Molloy ,  Chung T. Nguyen ,  David Ward ,  John Bettink ,  Peramanayagam Marimuthu

IPC分类号： G06F15/177

CPC分类号： H04L12/4633

摘要： A method is disclosed for dynamically creating encapsulation and decapsulation chains and segmenting the packet-forwarding plane. A distributed router may comprise multiple cards, each exposing a subset of the router's physical interfaces. Some physical interfaces may be configured to send/receive only certain types and destinations of data packets. Some cards might not expose any physical interfaces configured to send/receive a particular type and destination of packet, making encapsulation and/or decapsulation chains for virtual interfaces that process data packets of the particular type useless on those cards. Therefore, instead of always creating both encapsulation and decapsulation chains for a virtual interface on a card, an aspect of the method dynamically determines which of the encapsulation and decapsulation chains are useful for a virtual interface on that card, and creates only those chains that are useful on that card. Thus, the packet-forwarding plane is segmented into independent encapsulation and decapsulation segments.

摘要翻译： 公开了一种用于动态地创建封装和解封装链以及对分组转发平面进行分段的方法。 分布式路由器可以包括多个卡，每个卡暴露路由器的物理接口的子集。 一些物理接口可以被配置为仅发送/接收数据分组的某些类型和目的地。 某些卡可能不会将任何物理接口配置为发送/接收数据包的特定类型和目标，从而为处理特定类型的数据包在这些卡上无用的虚拟接口进行封装和/或解封装链。 因此，代替总是为卡上的虚拟接口创建封装和解封装链，该方法的一个方面动态地确定哪个封装和解封装链对于该卡上的虚拟接口是有用的，并且仅创建那些链 对该卡有用 因此，分组转发平面被分割为独立的封装和解封装段。

公开(公告)号：US20050251582A1

公开(公告)日：2005-11-10

申请号：US10824725

申请日：2004-04-14

申请人： Rajiv Goel ,  Jianyu Chen ,  Scott Molloy ,  Chung Nguyen ,  David Ward ,  John Bettink ,  Peramanayagam Marimuthu

发明人： Rajiv Goel ,  Jianyu Chen ,  Scott Molloy ,  Chung Nguyen ,  David Ward ,  John Bettink ,  Peramanayagam Marimuthu

IPC分类号： G06F15/173 ,  H04L12/46

CPC分类号： H04L12/4633

摘要： A method is disclosed for dynamically creating encapsulation and decapsulation chains and segmenting the packet-forwarding plane. A distributed router may comprise multiple cards, each exposing a subset of the router's physical interfaces. Some physical interfaces may be configured to send/receive only certain types and destinations of data packets. Some cards might not expose any physical interfaces configured to send/receive a particular type and destination of packet, making encapsulation and/or decapsulation chains for virtual interfaces that process data packets of the particular type useless on those cards. Therefore, instead of always creating both encapsulation and decapsulation chains for a virtual interface on a card, an aspect of the method dynamically determines which of the encapsulation and decapsulation chains are useful for a virtual interface on that card, and creates only those chains that are useful on that card. Thus, the packet-forwarding plane is segmented into independent encapsulation and decapsulation segments.

摘要翻译： 公开了一种用于动态地创建封装和解封装链以及对分组转发平面进行分段的方法。 分布式路由器可以包括多个卡，每个卡暴露路由器的物理接口的子集。 一些物理接口可以被配置为仅发送/接收数据分组的某些类型和目的地。 某些卡可能不会暴露任何配置为发送/接收数据包的特定类型和目的地的物理接口，从而为处理特定类型的数据包在这些卡上无用的虚拟接口进行封装和/或解封装链。 因此，代替总是为卡上的虚拟接口创建封装和解封装链，该方法的一个方面动态地确定哪个封装和解封装链对该卡上的虚拟接口是有用的，并且仅创建那些链 对该卡有用 因此，分组转发平面被分割为独立的封装和解封装段。

公开(公告)号：US20090109869A1

公开(公告)日：2009-04-30

申请号：US11858031

申请日：2007-09-19

申请人： Man-Tung T. Hsiao ,  Lisa H. Nguyen ,  Yung-Ching Tseng ,  Rajiv Goel

发明人： Man-Tung T. Hsiao ,  Lisa H. Nguyen ,  Yung-Ching Tseng ,  Rajiv Goel

IPC分类号： H04L12/28

CPC分类号： H04L12/4641 ,  H04L41/0806 ,  H04L41/0869 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

摘要： A device having circuit bundles and a method of configuring the network device to provide resiliency and protection for network circuits. A circuit bundle provides the ability to group multiple circuits of the same type for resiliency/protection. There is an active virtual circuit that is selected based on a user configured priority value defining priority for carrying circuit traffic. When the active virtual circuit fails, alternative virtual circuits are selected to carry the circuit traffic, again based on user configured priority. Virtual circuits included in the circuit bundle can have different destinations, and include at least multipoint virtual circuits.

摘要翻译： 具有电路束的设备和配置网络设备以为网络电路提供弹性和保护的方法。 电路组提供了组合相同类型的多个电路以实现弹性/保护的能力。 存在基于用户配置的优先级值来选择用于承载电路业务的优先级的活动虚拟电路。 当主动虚拟电路出现故障时，再次根据用户配置优先级选择备用虚拟电路来承载电路流量。 包括在电路束中的虚拟电路可以具有不同的目的地，并且至少包括多点虚拟电路。