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1.发明公开METHOD AND DEVICE USED IN ETHERNET VIRTUAL PRIVATE NETWORK 审中-公开VERFAHREN UND VORRICHTUNG ZUR VERWENDUNG在EINEM VIRTUELLEN PRIVATEN以太网网络
公开(公告)号：EP2991284A1
公开(公告)日：2016-03-02
申请号：EP13885138.1
申请日：2013-05-24
发明人： ZHANG, Junlin , LI, Zhenbin , ZHUANG, Shunwan
IPC分类号： H04L12/701
CPC分类号： H04L12/4645 , H04L12/462 , H04L12/6418 , Y02D30/32
摘要： Embodiments of the present invention provide a method and a device used for an Ethernet virtual private network, where the method includes: receiving, by a first provider edge PE device, a second data packet sent by a second PE device, where the second data packet carries a second label and a second source Media Access Control MAC address; and determining, by the first PE device according to the second label, that the second data packet is received by the second PE device from an Ethernet segment ES of the second PE device, and establishing a correspondence between the ES of the second PE device and the second source MAC address. Based on an ES and by using a data plane, a local PE learns a MAC address of a remote site, and there is no need to exchange C-MAC information by using a control plane, thereby reducing signaling overheads between PE devices on the control plane, and improving scalability of the control plane.
摘要翻译： 本发明的实施例提供了一种用于以太网虚拟专用网络的方法和设备，其中所述方法包括：由第一提供商边缘PE设备接收由第二PE设备发送的第二数据分组，其中所述第二数据分组 携带第二标签和第二源媒体访问控制MAC地址; 并且由所述第一PE设备根据所述第二标签确定所述第二PE设备从所述第二PE设备的以太网段ES接收到所述第二数据分组，并且建立所述第二PE设备的ES和 第二个源MAC地址。 基于ES，通过使用数据平面，本地PE学习远程站点的MAC地址，并且不需要通过使用控制平面交换C-MAC信息，从而减少控制上的PE设备之间的信令开销 并提高控制平面的可扩展性。
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公开(公告)号：EP3468117A1
公开(公告)日：2019-04-10
申请号：EP16906842.6
申请日：2016-07-01
发明人： ZHUANG, Shunwan , ZHANG, Junlin , WU, Nan
IPC分类号： H04L12/801
摘要： The present invention discloses an SFC-based packet forwarding method, an apparatus, and a system, which can implement redirection of a packet forwarding path through automatic configuration that is performed by a control node on a service function forwarding node. The packet forwarding method includes: receiving, by a first service function forwarding node, a packet forwarding rule sent by a control node, where the packet forwarding rule is used to indicate a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information; receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet; determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet; and determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.
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公开(公告)号：EP3863233A1
公开(公告)日：2021-08-11
申请号：EP20206842.5
申请日：2013-05-24
发明人： ZHANG, Junlin , LI, Zhenbin , ZHUANG, Shunwan
IPC分类号： H04L12/46 , H04L12/64 , H04L12/701
摘要： Embodiments of the present invention provide a method and a device used for an Ethernet virtual private network, where the method includes: receiving, by a first provider edge PE device, a second data packet sent by a second PE device, where the second data packet carries a second label and a second source Media Access Control MAC address; and determining, by the first PE device according to the second label, that the second data packet is received by the second PE device from an Ethernet segment ES of the second PE device, and establishing a correspondence between the ES of the second PE device and the second source MAC address. Based on an ES and by using a data plane, a local PE learns a MAC address of a remote site, and there is no need to exchange C-MAC information by using a control plane, thereby reducing signaling overheads between PE devices on the control plane, and improving scalability of the control plane.
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公开(公告)号：EP3468112A1
公开(公告)日：2019-04-10
申请号：EP16906841.8
申请日：2016-07-01
发明人： ZHUANG, Shunwan , ZHANG, Junlin , WU, Nan
IPC分类号： H04L12/701
摘要： The present invention discloses a method, an apparatus, and a system for forwarding a packet in SFC, which can standardize interaction between a routing and switching device and a controller, to implement smooth interconnection between the controller and the routing and switching device. The method includes: determining, by a control node, routing entry information of a service function forwarding node in a service function path SFP in the SFC, where the routing entry information records a mapping relationship between route prefix information and next hop information, the route prefix information includes a service path identifier SPI and a service index SI, the SPI is used to identify the SFP, the SI is used to identify a location of the service function forwarding node in the SFP, and the next hop information is used to indicate a next hop node of the service function forwarding node in the SFP; and sending, by the control node, the routing entry information to the service function forwarding node, where the routing entry information is used by the service function forwarding node to generate a forwarding table, and the forwarding table is used to instruct the service function forwarding node to forward a packet.
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公开(公告)号：EP2996290B1
公开(公告)日：2018-05-30
申请号：EP14820162.7
申请日：2014-06-25
发明人： ZHANG, Junlin , LI, Zhenbin
IPC分类号： H04L12/46 , H04L12/701 , H04L12/931 , H04L12/741 , H04L12/723 , H04L29/08 , H04L12/64 , H04L12/66 , H04L29/12
CPC分类号： H04L45/50 , H04L12/6418 , H04L12/66 , H04L45/74 , H04L49/351 , H04L61/2007 , H04L69/325
摘要： The present invention discloses a packet forwarding method, including: determining, by an ingress provider edge Ingress PE in an Ethernet virtual private network instance EVI, that a state of the EVI on a first egress Egress PE is active Active, where an Ethernet virtual private network EVPN corresponding to the EVI includes a first CE; determining, by the Ingress PE, that a state of the EVI on a second Egress PE is inactive Inactive; skipping, by the Ingress PE, forwarding a broadcast, unknown unicast, or multicast BUM packet to the second Egress PE, where the BUM packet is from the first CE; and forwarding, by the Ingress PE, the BUM packet to the first Egress PE. Repeated BUM traffic that is transmitted in a bearer network and is not finally sent to a remote site is reduced; therefore, a waste of bandwidth in the bearer network is reduced.
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公开(公告)号：EP2996290A1
公开(公告)日：2016-03-16
申请号：EP14820162.7
申请日：2014-06-25
发明人： ZHANG, Junlin , LI, Zhenbin
IPC分类号： H04L12/801
CPC分类号： H04L45/50 , H04L12/6418 , H04L12/66 , H04L45/74 , H04L49/351 , H04L61/2007 , H04L69/325
摘要： The present invention discloses a packet forwarding method, including: determining, by an ingress provider edge Ingress PE in an Ethernet virtual private network instance EVI, that a state of the EVI on a first egress Egress PE is active Active, where an Ethernet virtual private network EVPN corresponding to the EVI includes a first CE; determining, by the Ingress PE, that a state of the EVI on a second Egress PE is inactive Inactive; skipping, by the Ingress PE, forwarding a broadcast, unknown unicast, or multicast BUM packet to the second Egress PE, where the BUM packet is from the first CE; and forwarding, by the Ingress PE, the BUM packet to the first Egress PE. Repeated BUM traffic that is transmitted in a bearer network and is not finally sent to a remote site is reduced; therefore, a waste of bandwidth in the bearer network is reduced.
摘要翻译： 本发明公开了一种报文转发方法，包括：入口提供商边缘Ingress PE在以太网虚拟专用网络实例EVI中确定第一出口Egress PE上的EVI的状态为Active，其中以太网虚拟专用 EVI对应的网络EVPN包括第一CE; Ingress PE确定第二Egress PE上的EVI的状态为非活动状态; Ingress PE跳过广播，未知单播或组播BUM报文到第二Egress PE，其中BUM报文来自第一CE; Ingress PE将所述BUM报文转发给所述第一Egress PE。 在承载网络中传输并且最终没有发送到远程站点的重复BUM业务量减少; 因此，承载网络中的带宽浪费减少了。
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公开(公告)号：EP4231605A3
公开(公告)日：2023-09-27
申请号：EP23163991.5
申请日：2016-07-01
发明人： ZHUANG, Shunwan , ZHANG, Junlin , WU, Nan
IPC分类号： H04L45/64 , H04L45/302
摘要： The present invention discloses an SFC-based packet forwarding method, an apparatus, and a system, which can implement redirection of a packet forwarding path through automatic configuration that is performed by a control node on a service function forwarding node. The packet forwarding method includes: receiving, by a first service function forwarding node, a packet forwarding rule sent by a control node, where the packet forwarding rule is used to indicate a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information; receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet; determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet; and determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.
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公开(公告)号：EP4231605A2
公开(公告)日：2023-08-23
申请号：EP23163991.5
申请日：2016-07-01
发明人： ZHUANG, Shunwan , ZHANG, Junlin , WU, Nan
IPC分类号： H04L45/302 , H04L45/64
摘要： The present invention discloses an SFC-based packet forwarding method, an apparatus, and a system, which can implement redirection of a packet forwarding path through automatic configuration that is performed by a control node on a service function forwarding node. The packet forwarding method includes: receiving, by a first service function forwarding node, a packet forwarding rule sent by a control node, where the packet forwarding rule is used to indicate a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information; receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet; determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet; and determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.
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