公开(公告)号：US09756013B2

公开(公告)日：2017-09-05

申请号：US14328296

申请日：2014-07-10

Applicant: Cisco Technology, Inc.

Inventor： Rajiv Asati ,  Wojciech Dec ,  Yixing Ruan

IPC: H04L29/12

CPC classification number: H04L61/6059 ,  H04L61/2015 ,  H04L61/251 ,  H04L61/6063

Abstract: In one embodiment, a provider edge (PE) device in a computer network determines an IPv4 address and link-layer address for each adjacent customer premise equipment (CPE) device, and assigns each CPE device a unique IPv6 address. The PE device stores a key-pair mapping between the unique IPv6 address and combined IPv4 and link-layer address for each adjacent CPE, the mapping bound by a CPE session context, and uses the CPE session context to convert between IPv4 and IPv6 for all network traffic to and from a particular CPE device.

公开(公告)号：US20170078158A1

公开(公告)日：2017-03-16

申请号：US14853877

申请日：2015-09-14

Applicant: Cisco Technology, Inc.

Inventor： Wojciech Dec ,  Jan Medved

IPC: H04L12/24

CPC classification number: H04L41/08 ,  G06F11/30 ,  H04L41/0869

Abstract: In one embodiment, a method is provided for using a server computer, creating and storing a first module name, a first indication of a first version, and a first signature for a first data model that is digitally stored in a digital electronic data storage unit; receiving a second data model from the data storage unit and identifying a second module name in the second data model; comparing the second module name of the second data model to the first module name of the first data model; determining that the first module name and the second module name comprise a same name, and in response thereto, identifying a second indication of a second version from a revision field of the second data model; using the server computer, comparing the second indication of the second version from the second data model to the first indication of the first version of the first data model; determining the first indication and the second indication indicate the same version, determining a second signature for the second data model; comparing the second signature for the second data model with the first signature for the first data model; determining from the comparison that the second signature and the first signature are different, and in response thereto, creating and storing a flag value in main memory of the server computer and specifying that the second data model is different.

Abstract translation: 在一个实施例中，提供了一种用于使用服务器计算机，创建和存储第一模块名称，第一版本的第一指示和数字地存储在数字电子数据存储单元中的第一数据模型的第一签名的方法 ; 从所述数据存储单元接收第二数据模型并识别所述第二数据模型中的第二模块名称; 将第二数据模型的第二模块名称与第一数据模型的第一模块名称进行比较; 确定第一模块名称和第二模块名称包括相同的名称，并且响应于此，从第二数据模型的修订字段识别第二版本的第二指示; 使用所述服务器计算机，将所述第二版本的所述第二指示与所述第二数据模型进行比较以获得所述第一数据模型的所述第一版本的所述第一指示; 确定第一指示和第二指示指示相同的版本，确定第二数据模型的第二签名; 将第二数据模型的第二签名与第一数据模型的第一签名进行比较; 从所述比较确定所述第二签名和所述第一签名不同，并且响应于此，在所述服务器计算机的主存储器中创建和存储标志值，并指定所述第二数据模型不同。

公开(公告)号：US20130229924A1

公开(公告)日：2013-09-05

申请号：US13846201

申请日：2013-03-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Samer Salam ,  Wojciech Dec

IPC: H04L29/12

CPC classification number: H04L61/10 ,  H04L43/0811 ,  H04L43/10

Abstract: In one embodiment, an aggregation device is configured to aggregate traffic of a plurality of customer edge (CE) devices into a single bridge-domain. The aggregation device receives connectivity fault management (CFM) packets of a CFM protocol from the plurality of CE devices. Each received CFM packet includes a media access control (MAC) address of an access port of the CE device from which the CFM packet was transmitted. The aggregation device detects conflicting MAC addresses between access ports of CE devices by comparing MAC addresses of the received CFM packets. The aggregation device notifies one or more of the plurality of CE devices of the conflict.

Abstract translation: 在一个实施例中，聚合设备被配置为将多个客户边缘（CE）设备的业务聚合成单个桥域。 聚合设备从多个CE设备接收CFM协议的连接故障管理（CFM）报文。 每个接收到的CFM分组包括从其发送CFM分组的CE设备的接入端口的媒体访问控制（MAC）地址。 聚合设备通过比较接收到的CFM报文的MAC地址来检测CE设备的接入端口之间的冲突MAC地址。 聚合设备通知多个CE设备中的一个或多个冲突。