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1. 发明申请

US20190281011A1 DYNAMIC ORTHOGONAL LOCAL DHCP IP POOLS FOR WIRELESS ACCESS POINTS 审中-公开
公开(公告)号：US20190281011A1
公开(公告)日：2019-09-12
申请号：US15914522
申请日：2018-03-07
申请人： Cisco Technology, Inc.
发明人： Tak Ming Francis Pang , Bo Yang , Maruth N. Kamath , Xinggang Zhou
IPC分类号： H04L29/12 , H04W76/10
摘要： An access point (AP) operates in a network of APs, each configured with a distinct IP address with which to communicate with a wide area network (WAN), and each configured to connect wirelessly with wireless client devices seeking access to the WAN via the each AP. The AP derives, based on the distinct IP address, a standalone pool of IP addresses for assignment to wireless client devices, such that the IP addresses do not overlap with IP addresses of any other standalone pool of IP addresses derived by any other of the APs; The AP operates in a standalone mode to: receive from wireless client devices connecting with the AP respective requests for IP addresses for use by the wireless client devices; and responsive to each request, dynamically assign to the wireless client device that sent the request a respective IP address from the standalone pool of IP addresses.

2. 发明授权

US10574627B2 Dynamic orthogonal local DHCP IP pools for wireless access points 有权
公开(公告)号：US10574627B2
公开(公告)日：2020-02-25
申请号：US15914522
申请日：2018-03-07
申请人： Cisco Technology, Inc.
发明人： Tak Ming Francis Pang , Bo Yang , Maruth N. Kamath , Xinggang Zhou
IPC分类号： H04L29/12 , H04W76/10 , H04W84/12 , H04W88/08
摘要： An access point (AP) operates in a network of APs, each configured with a distinct IP address with which to communicate with a wide area network (WAN), and each configured to connect wirelessly with wireless client devices seeking access to the WAN via the each AP. The AP derives, based on the distinct IP address, a standalone pool of IP addresses for assignment to wireless client devices, such that the IP addresses do not overlap with IP addresses of any other standalone pool of IP addresses derived by any other of the APs; The AP operates in a standalone mode to: receive from wireless client devices connecting with the AP respective requests for IP addresses for use by the wireless client devices; and responsive to each request, dynamically assign to the wireless client device that sent the request a respective IP address from the standalone pool of IP addresses.

3. 发明授权

US09559854B2 Managing rendezvous point redundancy in a dynamic fabric network architecture 有权
标题翻译：在动态结构网络架构中管理会合点冗余
公开(公告)号：US09559854B2
公开(公告)日：2017-01-31
申请号：US14312347
申请日：2014-06-23
申请人： Cisco Technology, Inc.
发明人： Liqin Dong , Yibin Yang , Xinggang Zhou
IPC分类号： G01R31/08 , H04L12/18 , H04L12/24 , H04L12/801
CPC分类号： H04L12/18 , H04L12/185 , H04L12/1886 , H04L41/0654 , H04L41/0843 , H04L45/16 , H04L47/12
摘要： Multi-destination frames in a network fabric may be carried in IP multicast packets. As such, the network fabric may us IP multicast technique such as a PIM protocol for handling the multi-destination frames. To provide redundancy, the system administrator can use phantom rendezvous points (RPs) that include multiple physical RPs where one of the RPs serves as a primary RP and the other RPs serve as secondary RPs (e.g., backup RPs). Instead of the system administrator manually configuring the phantom RPs, the RPs are automatically configured. To do so, the system administrator may use a GUI to provide multicast groups allocated for the multi-destination traffic, the number of desired phantom RPs (or physical RPs), and the desired RP redundancy. Based on these parameters, a data center manager generates one or more templates that automatically configure the network devices in the fabric as they are booted.
摘要翻译：网络结构中的多目的帧可以在IP组播数据包中携带。因此，网络结构可能需要IP组播技术，例如用于处理多目的地帧的PIM协议。为了提供冗余，系统管理员可以使用包含多个物理RP的幻像会合点（RP），其中一个RP用作主RP，而其他RP用作辅助RP（例如备份RP）。而不是系统管理员手动配置幻像RP，RP会自动配置。为此，系统管理员可以使用GUI来提供为多目的地业务分配的组播组，所需的幻象RP（或物理RP）的数量以及期望的RP冗余。基于这些参数，数据中心管理器生成一个或多个模板，在模板启动时自动配置网络设备。

4. 发明授权

US09503277B2 Dynamic instantiation of remote virtual extensible local area network tunnel end points acquired through a control protocol 有权
标题翻译：通过控制协议获取的远程虚拟可扩展局域网隧道端点的动态实例化
公开(公告)号：US09503277B2
公开(公告)日：2016-11-22
申请号：US14340079
申请日：2014-07-24
申请人： CISCO TECHNOLOGY, INC.
发明人： Liqin Dong , Yibin Yang , Di Jin , Xinggang Zhou , Siu-Man Leung
IPC分类号： H04L12/28 , H04L12/46 , H04L12/751
CPC分类号： H04L12/4641 , H04L12/4633 , H04L45/021 , H04L45/08 , H04L2012/4629
摘要： A method is provided in one example embodiment and includes acquiring at a local network element information regarding a remote network element via a control protocol distribution method and refraining from instantiating the remote VTEP for the remote network element on the local network element until unicast traffic from the local network element to the remote network element via an overlay network has begun. The method may further include detecting unicast traffic from the local network element to the remote network element and subsequent to the detecting, instantiating the remote VTEP for the remote network element on the local network element. Some embodiments may include detecting cessation of the unicast traffic from the local network element to the remote network element and subsequent to the detecting cessation, uninstantiating the remote VTEP for the remote network element from the local network element.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括通过控制协议分发方法在本地网络单元获取关于远程网络元件的信息，并且避免对本地网络元件上的远程网元实例化远程VTEP，直到来自已经开始通过覆盖网络到远程网元的本地网元。该方法还可以包括检测从本地网络单元到远程网络单元的单播业务，并且在本地网络元件上检测，实例化远程网络元件的远程VTEP之后。一些实施例可以包括检测从本地网络元件到远程网络元件的停止，并且在检测停止之后，从远离的网络元件的远程VTEP与本地网络元件相抵消。

5. 发明授权

US10298490B2 Coexistence and migration of legacy ethernet and overlay networks 有权
公开(公告)号：US10298490B2
公开(公告)日：2019-05-21
申请号：US14963470
申请日：2015-12-09
申请人： Cisco Technology, Inc.
发明人： Liqin Dong , Yibin Yang , Lukas Krattiger , Xinggang Zhou , Di Jin , Siu-Man Leung
IPC分类号： H04L29/06 , H04L12/721 , H04L12/46 , H04L12/66 , H04L12/715 , H04L12/775 , H04L12/753
摘要： Coexistence and migration of legacy and VXLAN networks may be provided. A first anchor leaf switch and a second anchor leaf switch may detect that they can reach each other over a Virtual Extensible Local Area Network (VXLAN) overlay layer 2 network. In response to detecting that they can reach each other over the VXLAN, the second anchor leaf switch may block VLANs mapped to the VXLAN's VXLAN Network Identifier (VNI) on the second anchor leaf switch's ports connecting to spine routers. In addition, the first anchor leaf switch and the second anchor leaf switch may detect that they can reach each other over a physical layer 2 network. In response to detecting that they can reach each other over a physical layer 2 network, the second anchor leaf switch may block Virtual Extensible Local Area Network (VXLAN) segments at the second anchor leaf switch.

6. 发明申请

US20170171056A1 Coexistence and Migration of Legacy Ethernet and Overlay Networks 审中-公开
公开(公告)号：US20170171056A1
公开(公告)日：2017-06-15
申请号：US14963470
申请日：2015-12-09
申请人： Cisco Technology, Inc.
发明人： Liqin Dong , Yibin Yang , Lukas Krattiger , Xinggang Zhou , Di Jin , Siu-Man Leung
IPC分类号： H04L12/751 , H04L12/721 , H04L12/715 , H04L12/46 , H04L12/66
CPC分类号： H04L45/66 , H04L12/4641 , H04L12/66 , H04L45/48 , H04L45/58 , H04L45/64
摘要： Coexistence and migration of legacy and VXLAN networks may be provided. A first anchor leaf switch and a second anchor leaf switch may detect that they can reach each other over a Virtual Extensible Local Area Network (VXLAN) overlay layer 2 network. In response to detecting that they can reach each other over the VXLAN, the second anchor leaf switch may block VLANs mapped to the VXLAN's VXLAN Network Identifier (VNI) on the second anchor leaf switch's ports connecting to spine routers. In addition, the first anchor leaf switch and the second anchor leaf switch may detect that they can reach each other over a physical layer 2 network. In response to detecting that they can reach each other over a physical layer 2 network, the second anchor leaf switch may block Virtual Extensible Local Area Network (VXLAN) segments at the second anchor leaf switch.

7. 发明申请

US20160028557A1 DYNAMIC INSTANTIATION OF REMOTE VIRTUAL EXTENSIBLE LOCAL AREA NETWORK TUNNEL END POINTS ACQUIRED THROUGH A CONTROL PROTOCOL 有权
标题翻译：通过控制协议获得的远程虚拟可扩展的本地区域网络隧道终点的动态实时监测
公开(公告)号：US20160028557A1
公开(公告)日：2016-01-28
申请号：US14340079
申请日：2014-07-24
申请人： CISCO TECHNOLOGY, INC.
发明人： Liqin Dong , Yibin Yang , Di Jin , Xinggang Zhou , Siu-Man Leung
IPC分类号： H04L12/46 , H04L12/751
CPC分类号： H04L12/4641 , H04L12/4633 , H04L45/021 , H04L45/08 , H04L2012/4629
摘要： A method is provided in one example embodiment and includes acquiring at a local network element information regarding a remote network element via a control protocol distribution method and refraining from instantiating the remote VTEP for the remote network element on the local network element until unicast traffic from the local network element to the remote network element via an overlay network has begun. The method may further include detecting unicast traffic from the local network element to the remote network element and subsequent to the detecting, instantiating the remote VTEP for the remote network element on the local network element. Some embodiments may include detecting cessation of the unicast traffic from the local network element to the remote network element and subsequent to the detecting cessation, uninstantiating the remote VTEP for the remote network element from the local network element.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括通过控制协议分发方法在本地网络单元获取关于远程网络元件的信息，并且避免对本地网络元件上的远程网元实例化远程VTEP，直到来自已经开始通过覆盖网络到远程网元的本地网元。该方法还可以包括检测从本地网络单元到远程网络单元的单播业务，并且在本地网络元件上检测，实例化远程网络元件的远程VTEP之后。一些实施例可以包括检测从本地网络元件到远程网络元件的停止，并且在检测停止之后，从远离的网络元件的远程VTEP与本地网络元件相抵消。

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