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公开(公告)号：US09210080B2
公开(公告)日：2015-12-08
申请号：US14010109
申请日：2013-08-26
发明人： Keshava A K , Dhruv Dhody
IPC分类号： H04B3/20 , H04L12/741 , H04L12/721
摘要： The embodiments of the present disclosure provide a method for transmitting packet in a Virtual Network. In the method, an access switch receives a Layer 3 packet carrying a VNID (Virtual Network IDentifier) from a VM in a remote Data Center. The access switch determines a DN (Designated Node) corresponding to the VNID and generates a Layer 2 frame according to the Layer 3 packet, where the Layer 2 frame includes the MAC (Media Access Control) address of the DN. The access switch to the DN transmits the Layer 2 frame according to the MAC address of the DN such that the DN determines a Layer 3 destination address according to the Layer 2 frame. This avoids packet flooding in Data Center when VM was migrated.
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公开(公告)号：US10805098B2
公开(公告)日：2020-10-13
申请号：US16171320
申请日：2018-10-25
发明人： Udayasree Palle , Dhruv Dhody
IPC分类号： H04L12/18 , H04L12/761 , H04L12/723 , H04L12/749
摘要： Disclosed is a mechanism that provides the extensions of PCEP message and the objects to support PCECC with P2MP capability in downloading the labels for branch node of P2MP TE LSPs. In one implementation, the present invention provides an apparatus, a system, a node and a method that receives a PCLabelUpd message with all the extensions and the objects to support PCECC with P2MP capability, detects the object and identifies that the label download is for P2MP TE LSP and for this LSP, the apparatus/the system/the node acts as a branch node, and thereby the apparatus/the system/the node downloads all the labels specified in the object to data plane with respect to any existing branch node download mechanism for a P2MP TE LSP.
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公开(公告)号：US11611447B2
公开(公告)日：2023-03-21
申请号：US17367153
申请日：2021-07-02
发明人： Udayasree Palle , Dhruv Dhody
IPC分类号： H04L12/18 , H04L45/16 , H04L45/50 , H04L45/741
摘要： Disclosed is a mechanism that provides the extensions of PCEP message and the objects to support PCECC with P2MP capability in downloading the labels for branch node of P2MP TE LSPs. In one implementation, various embodiments provide an apparatus, a system, a node and a method that receives a PCLabelUpd message with all the extensions and the objects to support PCECC with P2MP capability, detects the object and identifies that the label download is for P2MP TE LSP and for this LSP. In those embodiments, the apparatus/the system/the node acts as a branch node, and thereby the apparatus/the system/the node downloads all the labels specified in the object to data plane with respect to any existing branch node download mechanism for a P2MP TE LSP.
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公开(公告)号：US20200304419A1
公开(公告)日：2020-09-24
申请号：US16898570
申请日：2020-06-11
IPC分类号： H04L12/913 , H04L12/723
摘要： The present invention discloses communication methods, apparatuses and a system for sharing network resources in a communications network. It enables a path computation element (PCE) to notify path computation clients (PCCs) about the shared resources of independent label switch paths by allowing a PCE to send an association object with a new association type to PCC. A Path Computation Element (PCE) Communication Protocol extension that associates LSP's whose ingress, or egress, or both ingress and egress are different for resource sharing to avoid path computation failures or duplicate allocation of resources during common links for new LSP's created during an update of E2E LSP. The PCC employs Resource ReSerVation Protocol (RSVP) for LSP signalling, PCC forwards path message information along with association object to the RSVP for LSP signalling. The RSVP uses the association object in its reservation message for LSP setup.
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5.发明授权Method, apparatus and system for transmitting packets in virtual network with respect to a virtual machine (VM) migration 有权用于在虚拟网络中相对于虚拟机（VM）迁移传送分组的方法，装置和系统公开(公告)号：US09270590B2
公开(公告)日：2016-02-23
申请号：US14010109
申请日：2013-08-26
发明人： Keshava A K , Dhruv Dhody
IPC分类号： H04B3/20 , H04L12/741 , H04L12/721
摘要： The embodiments of the present disclosure provide a method for transmitting packet in a Virtual Network. In the method, an access switch receives a Layer 3 packet carrying a VNID (Virtual Network IDentifier) from a VM in a remote Data Center. The access switch determines a DN (Designated Node) corresponding to the VNID and generates a Layer 2 frame according to the Layer 3 packet, where the Layer 2 frame includes the MAC (Media Access Control) address of the DN. The access switch to the DN transmits the Layer 2 frame according to the MAC address of the DN such that the DN determines a Layer 3 destination address according to the Layer 2 frame. This avoids packet flooding in Data Center when VM was migrated.
摘要翻译： 本公开的实施例提供了一种用于在虚拟网络中传送分组的方法。 在该方法中，接入交换机从远程数据中心的VM接收携带VNID（虚拟网络标识符）的第3层分组。 接入交换机确定对应于VNID的DN（指定节点），并根据第3层分组生成第2层帧，其中第2层包括DN的MAC（媒体访问控制）地址。 到DN的接入交换机根据DN的MAC地址传输二层帧，使得DN根据二层帧确定三层目的地址。 这样可以避免迁移VM时数据中心中的数据包泛滥。
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6.发明公开公开(公告)号：US20230336471A1
公开(公告)日：2023-10-19
申请号：US18336058
申请日：2023-06-16
发明人： Dhruv Dhody
IPC分类号： H04L45/42 , H04L45/741 , H04L43/062
CPC分类号： H04L45/42 , H04L45/741 , H04L43/062
摘要： The present disclosure provides a mechanism to support the creation of an SR policy using PCEP extensions. In one implementation, a PCE is in communication with a PCC using PCEP mechanisms. The PCE sends a first PCEP initiate message, PCInitiate, to the PCC, where the first PCEP message carries the central controller instruction with CC-ID for creating an SR policy. The PCC receives the first PCEP initiate message from the PCE, creates the SR policy using the SR policy parameters where the SR policy is a container independent of any candidate path. Further, the PCC sends a first PCEP report message, PCRpt, to the PCE to report the acknowledgement of the CC-ID and the newly created SR policy.
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公开(公告)号：US11563692B2
公开(公告)日：2023-01-24
申请号：US16898570
申请日：2020-06-11
IPC分类号： H04L12/913 , H04L12/723 , H04L47/724 , H04L45/50
摘要： A communications method enables a path computation element (PCE) to notify path computation clients (PCCs) about the shared resources of independent label switch paths by allowing a PCE to send an association object with a new association type to PCC. A PCE Communication Protocol extension that associates label-switched paths (LSPs) whose ingress, or egress, or both ingress and egress are different for resource sharing to avoid path computation failures or duplicate allocation of resources during common links for new LSPs created during an update of end-to-end (E2E) LSP. The PCC employs Resource Reservation Protocol (RSVP) for LSP signalling, PCC forwards path message information along with association object to the RSVP for LSP signalling. The RSVP uses the association object in its reservation message for LSP setup.
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公开(公告)号：US20190075048A1
公开(公告)日：2019-03-07
申请号：US16179603
申请日：2018-11-02
发明人： Udayasree Palle , Dhruv Dhody
IPC分类号： H04L12/723 , H04L12/751 , H04L12/947
摘要： Disclosed is a method for label database synchronization in a packet switched communication network including establishing a communication path between a stateful path computation element (PCE) and a path computation client (PCC), modifying a label update message at the PCE to include a synchronization flag and transmitting the label update message to the PCC.
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公开(公告)号：US11082245B2
公开(公告)日：2021-08-03
申请号：US15930451
申请日：2020-05-13
发明人： Udayasree Palle , Dhruv Dhody
IPC分类号： H04L12/18 , H04L12/761 , H04L12/723 , H04L12/749
摘要： Disclosed is a mechanism that provides the extensions of PCEP message and the objects to support PCECC with P2MP capability in downloading the labels for branch node of P2MP TE LSPs. In one implementation, various embodiments provide an apparatus, a system, a node and a method that receives a PCLabelUpd message with all the extensions and the objects to support PCECC with P2MP capability, detects the object and identifies that the label download is for P2MP TE LSP and for this LSP. In those embodiments, the apparatus/the system/the node acts as a branch node, and thereby the apparatus/the system/the node downloads all the labels specified in the object to data plane with respect to any existing branch node download mechanism for a P2MP TE LSP.
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10.发明申请公开(公告)号：US20140161128A1
公开(公告)日：2014-06-12
申请号：US14167315
申请日：2014-01-29
发明人： Dhruv Dhody , Udayasree Palle , Quintin Zhao
IPC分类号： H04L12/741
摘要： The embodiments of the present disclosure provide a method of communicating across different domains and network apparatus. In the method, sending a Path Computation Request message to a Path Computation Element; wherein the Path Computation Request message includes an Include Route Object, and the Include Route Object is configured to specify a domain sequence; wherein the Include Route Object includes at least two sub-objects, and the at least two sub-objects identified the different domains. Through the embodiments of the present disclosure, standard way of representation for domain sequence has been implemented by using sub-object for area.
摘要翻译： 本公开的实施例提供了跨越不同域和网络设备进行通信的方法。 在该方法中，向路径计算元素发送路径计算请求消息; 其中路径计算请求消息包括包含路由对象，并且包括路由对象被配置为指定域序列; 其中所述包括路由对象包括至少两个子对象，并且所述至少两个子对象标识不同的域。 通过本公开的实施例，已经通过使用区域的子对象来实现域序列的标准表示方式。
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