公开(公告)号：US20060056414A1

公开(公告)日：2006-03-16

申请号：US11221276

申请日：2005-09-06

申请人： David Elie-Dit-Cosaque ,  Kamakshi Sridhar ,  Maarten Petrus Vissers ,  Jessy Rouyer

发明人： David Elie-Dit-Cosaque ,  Kamakshi Sridhar ,  Maarten Petrus Vissers ,  Jessy Rouyer

IPC分类号： H04L12/56

CPC分类号： H04L12/4687 ,  H04L12/4641 ,  H04L12/4691

摘要： A system and method for securing an Ethernet Connectivity Fault Management (CFM) domain defined on a Virtual Local Area Network (VLAN). In one embodiment, the scheme includes, responsive to registering by an external port with the VLAN, whereby the VLAN is extended to include the external port, monitoring by a boundary Maintenance End Point (MEP) node of the Ethernet CFM domain to determine if bidirectional control frame flow (e.g., Continuity Check (CC) frame flow) is observed thereat; and, responsive to determining by the boundary MEP node that there is no bidirectional control frame flow therethrough, generating an alarm indicative of a potential breach of the Ethernet CFM domain by the external port.

摘要翻译： 一种用于保护在虚拟局域网（VLAN）上定义的以太网连接故障管理（CFM）域的系统和方法。 在一个实施例中，该方案包括响应于外部端口与VLAN的注册，由此扩展VLAN以包括外部端口，由以太网CFM域的边界维护端点（MEP）节点监视以确定是否双向 在那里观察到控制帧流（例如，连续性检查（CC）帧流）; 并且响应于由边界MEP节点确定没有双向控制帧流过其中，从而产生指示由外部端口潜在地违反以太网CFM域的警报。

公开(公告)号：US20060007867A1

公开(公告)日：2006-01-12

申请号：US11023716

申请日：2004-12-28

申请人： David Elie-Dit-Cosaque ,  Kamakshi Sridhar ,  Maarten Petrus Vissers ,  Tony Kerckhove

发明人： David Elie-Dit-Cosaque ,  Kamakshi Sridhar ,  Maarten Petrus Vissers ,  Tony Kerckhove

IPC分类号： G01R31/08 ,  H04L12/28

CPC分类号： H04L41/0893

摘要： A domain configuration system and method operable in an Ethernet OAM network having multiple levels of OAM domains. A port of a first end bridge of the network is configured as a first MEP node belonging to a predetermined OAM domain having a particular level. GARP or CC frames are transmitted from the first MEP node in a forward attribute registration process towards the remaining bridges of the network. A port of a second end bridge of the network is configured as a second MEP node of the predetermined OAM domain. In a backward attribute registration process, GARP or CC frames are transmitted from the second MEP node towards the remaining bridges of the network. Responsive to the frame flow, ports in bridges disposed between the first and second end bridges are automatically configured as MIP nodes having the particular level.

公开(公告)号：US20050249124A1

公开(公告)日：2005-11-10

申请号：US11024077

申请日：2004-12-28

申请人： David Elie-Dit-Cosaque ,  Kamakshi Sridhar ,  Maarten Petrus Vissers ,  Tony Kerckhove

发明人： David Elie-Dit-Cosaque ,  Kamakshi Sridhar ,  Maarten Petrus Vissers ,  Tony Kerckhove

IPC分类号： H04L12/24 ,  H04L12/26 ,  H04L1/00

CPC分类号： H04L41/0677 ,  H04L43/0811 ,  H04L43/10

摘要： A network environment including a provider network coupled to a first customer network site via a first access link and to a second customer network site via a second access link. The provider network is operable with the IEEE 802.1ag standard for propagating a remote link fault condition via an Ethernet Alarm Indication and Suppression (AIS) frame or a Continuity Check (CC) frame, which is translated into a locally compliant non-IEEE 802.1ag error delivery condition so that a management entity associated with the first customer network site is appropriately alerted.

摘要翻译： 网络环境，包括经由第一接入链路耦合到第一客户网络站点的提供商网络，以及经由第二接入链路到达第二客户网络站点的网络环境。 提供商网络可以通过IEEE 802.1ag标准操作，用于通过以太网报警指示和抑制（AIS）帧或连续性检查（CC）帧传播远程链路故障状况，该帧被转换为本地兼容的非IEEE 802.1ag 错误传送条件，使得与第一客户网络站点相关联的管理实体被适当地提醒。

公开(公告)号：US20060159008A1

公开(公告)日：2006-07-20

申请号：US11317296

申请日：2005-12-22

申请人： Kamakshi Sridhar ,  Sven Ooghe ,  Maarten Petrus Vissers ,  Atiya Suhail

发明人： Kamakshi Sridhar ,  Sven Ooghe ,  Maarten Petrus Vissers ,  Atiya Suhail

IPC分类号： H04J1/16

CPC分类号： H04L41/32 ,  H04L12/2881 ,  H04L41/0226

摘要： A system and method for monitoring end nodes using Ethernet Connectivity Fault Management (CFM) in an access network. In one embodiment, a broadband access server (BRAS) is operable to generate an Ethernet CFM frame that includes a query message with respect to a particular end node. An interworking function (IWF) entity associated with an access node that services the particular end node is operable to interpret the Ethernet CFM frame and construct a corresponding query message in a native protocol compatible with the particular end node. Upon receiving a reply message from the particular end node, the IWF entity constructs a suitable reply Ethernet CFM frame for transmission to the BRAS, wherein the reply Ethernet CFM frame includes a response corresponding to the reply message from the end node.

摘要翻译： 一种用于在接入网络中使用以太网连接故障管理（CFM）监视终端节点的系统和方法。 在一个实施例中，宽带接入服务器（BRAS）可用于生成包括关于特定终端节点的查询消息的以太网CFM帧。 与服务特定终端节点的接入节点相关联的互通功能（IWF）实体可操作以解释以太网CFM帧并构建与特定终端节点兼容的本地协议的对应查询消息。 IWF实体在从特定终端节点接收到回复消息时，构建用于传输到BRAS的合适应答以太网CFM帧，其中应答以太网CFM帧包括与来自终端节点的应答消息相对应的响应。