WO2012092779A1 - Procédé de protection des services dans un réseau pbb h-vpls - Google Patents

Procédé de protection des services dans un réseau pbb h-vpls Download PDF

Info

Publication number
WO2012092779A1
WO2012092779A1 PCT/CN2011/079031 CN2011079031W WO2012092779A1 WO 2012092779 A1 WO2012092779 A1 WO 2012092779A1 CN 2011079031 W CN2011079031 W CN 2011079031W WO 2012092779 A1 WO2012092779 A1 WO 2012092779A1
Authority
WO
WIPO (PCT)
Prior art keywords
upe
npe
mac
pbb
learning
Prior art date
Application number
PCT/CN2011/079031
Other languages
English (en)
Chinese (zh)
Inventor
张宇阳
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2012092779A1 publication Critical patent/WO2012092779A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling

Definitions

  • the invention relates to a service protection method in a PBB H-VPLS network, which is submitted to the Chinese Patent Office on January 7, 2011, and the application number is 201110004081.91.9.
  • the present invention relates to the field of network communication technologies, and in particular, to a service protection method in a PBB H-VPLS network.
  • the Bridge PBB (Provider Backbone Bridge) technology is defined by the Institute of Electrical and Electronics Engineers IEEE 802.1 ah, which encapsulates the User Media Access Control MAC C-MAC (Customer Media Access Control) address into the public network MAC address B-MAC (Backbone Media Access Control) The address is transmitted to achieve complete isolation between the user network and the carrier network.
  • the public network MAC is separated from the user MAC, which ensures the stability of the network and reduces the MAC forwarding table of the public network device. The number of items required.
  • Virtual Private LAN Service is a network technology that combines Ethernet technology and Multiprotocol Label Switching (MPLS) technology. It is a simulation of all functions of a traditional LAN (Local Area Network). Its main purpose is to connect geographically isolated multiple LANs connected by Ethernet through an IP/MPLS network provided by the operator, so that they work like a LAN.
  • a Hierarchical Virtual Private LAN Services (H-VPLS) architecture is proposed. Under the H-VPLS architecture, the service provider edge device PE (Provider Edge) is fine. It is divided into a User-facing Provider Edge (UPE) and a Network Provider Edge (NPE) for the user network.
  • PEE User-facing Provider Edge
  • NPE Network Provider Edge
  • the UPE is used to connect the Customer Edge (CE) device to the service provider network.
  • CE Customer Edge
  • the NPE is at the edge of the core domain of the VPLS network and provides VPLS over the core network. Ming transmission service.
  • the UPE does not need to establish a full connection with all NPEs, and only needs to establish a full connection between the NPEs.
  • PBB H-VPLS mainly refers to the use of Mac-in-Mac in the H-VPLS transport network instead of the IEEE 802.1Q-based nested encapsulation QinQ (802.1Q-in-802.1Q) protocol, which aims to reduce H-VPLS services.
  • the excessive pressure on the MAC forwarding entry of the NPE location node solves the problem of network scalability.
  • the PBB H-VPLS generally uses the Pseudo-Wire (Pseudo-Wire) to guarantee the reliability of the service. After the main PW fails, the traffic is switched to the standby PW.
  • Pseudo-Wire Pseudo-Wire
  • the fast switching between the active and standby PWs cannot be performed in the case of a fault. This problem is more serious when the number of PWs in the network is relatively large, so that it is difficult to meet the requirements for packet loss rate. High service QoS requirements.
  • the carrier-side device UPE of the first user-oriented network is dual-homed to the first NPE and the second NPE, and a fault detection and switching mechanism is established between the first UPE, the first NPE, and the second NPE, where the first The NPE and the second NPE respectively establish a management pseudowire PW with the first UPE, and the two management PWs on the first UPE form a management virtual switching instance VSI;
  • the switching mechanism switches the first NPE to a standby NPE, and the second NPE is switched to a primary NPE;
  • the second NPE sends a free address resolution protocol ARP packet to the first UPE to refresh the media access control address MAC forwarding table of the first UPE, and sends a label allocation protocol MAC forwarding table to the second UPE device.
  • the LDP MAC withdraw message refreshes the MAC forwarding table of the second UPE;
  • the first UPE clears the service provider backbone bridge learned on the first UPE and the second UPE, respectively, after receiving the LDP MAC Withdraw message.
  • the first UPE and the second UPE perform multicast forwarding on the traffic sent to the PW side, and trigger the learning of the local user C-MAC;
  • the second NPE forwards the packet received from the first UPE according to the media access control address B-DMAC of the multicast backbone network, and learns the source media access control address B-SMAC of the backbone network, and learns B-SMAC. After completion, the message is forwarded to the second UPE;
  • the first UPE and the second UPE multicast the traffic destined for the AC side of the access circuit, and trigger the learning of the PBB encapsulation table, the decapsulation table, and the learning of the remote user C-MAC;
  • the first UPE, the second NPE, and the second UPE perform normal packet forwarding.
  • the service protection method in the PBB H-VPLS network provided by the embodiment of the present invention can quickly switch the service traffic to the standby PW in the case of the PW H-VPLS network, thereby greatly reducing the service.
  • the time of interruption BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic diagram of a system applied to a service protection method in a PBB H-VPLS network according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a service protection method in a PBB H-VPLS network according to an embodiment of the present invention.
  • 1 is a system applied to a method for quickly switching PBB HVPLS active and standby PWs according to an embodiment of the present invention.
  • the system includes user edge devices CE1 and CE2, UPE1, and NPE1, UPE2, and NPE2.
  • the CE1 and the CE2 are dual-homed to the NPE1 and the NPE2.
  • the PW is established between the UPE1 and the UPE2 and the NPE1 and the NPE2, respectively.
  • the user data packet sent from CE1 to CE2 is used as an example.
  • CE1 sends the user data packet to UPE1.
  • the user data packet on UPE1 enters the virtual switch instance VSI according to the outer VLAN tag of the user data. Instance ) VSI, then UPE1 further encapsulates the message into Mac-in-Mac mode and sends it through PW, where B-SMAC (Backbone Source MAC Address 802.1 ah ) of user data is set as the public network source of UPE1.
  • B-SMAC Backbone Source MAC Address 802.1 ah
  • B-DMAC Backbone Destination MAC Address 802.1 ah
  • I-SID the Instance with Service Identifier
  • the VSI does not need to be forwarded based on the B-VLAN.
  • the NPE forwards according to the B-DMAC in the VSI. Therefore, the NPE needs to learn the B-MAC without learning the C-MAC, that is, the NPE performs standard VPLS forwarding.
  • UPE2 After receiving the service packet from the PW, UPE2 performs the decapsulation process of the Mac-in-Mac to obtain the public network source MAC address B-SMAC, B-DMAC, and the user source MAC address (C-SMA).
  • the destination MAC address is C-DMA (Customer destination MAC address), and the B-VLAN tag and I-SID information of the backbone network virtual LAN are not processed.
  • UPE2 learns B-SMAC and C-SMA for MAC forwarding of backhaul traffic in the VSI. When UPE2 forwards to CE2, it searches for forwarding entries according to C-DMA. If the entry does not exist, it performs broadcast processing and restores the QinQ encapsulation format, which retains C-SMA and C-DMA information, and B-SMAC and B-DMAC. No longer exists.
  • VSI in PBB H-VPLS includes virtual exchange instance with I-Component function I-VSI
  • the I-VSI is used to encapsulate the PBB frame and bind to the AC interface to determine the local CE.
  • the service instance component I-component (Instance Component ) provides a bridging function based on the user MAC address and the user virtual local area network C-VLAN information.
  • the B-VSI is used to process the MAC address of the backbone network and configure the peer to determine the peer PE. Multiple I-VSIs can be bound to the same B-VSI, and the NPE only perceives the B-VSI.
  • CE1 device is an access layer switch or a digital subscriber line access multiplexer DSLAM (Digital Subscriber Line Access) Multiplexer)
  • CE2 devices are multi-service gateways, routers, and broadband remote access servers (BRAS).
  • BRAS broadband remote access servers
  • CE1 and CE2, UPE1 and UPE2, NPEl and NPE2 form a typical metro Ethernet area.
  • the user service on the CE1 device is transparently transmitted to the NPE2 through the H-VPLS.
  • the UPE performs service offloading. Different types of services enter different virtual exchange instances I-VSI with the I-component (Instance Component) function.
  • Transparently transmitted to the multi-service gateway the enterprise business is transparently transmitted to the router.
  • the personal service is terminated or transparently transmitted to the BRAS at the multi-service gateway, and the enterprise service is handled by the router.
  • an embodiment of the present invention provides a method for rapidly switching PBB H-VPLS active and standby PWs, including:
  • the UPE1 is dual-homed to the NPE1 and the NPE2, and a fault detection and switching mechanism is established between the NPE1 and the NPE2, and the NPE1 and the NPE2 respectively establish a management pseudowire PW with the UPE1, and the two are on the UPE1.
  • Management PWs constitute a management virtual exchange instance VSI;
  • the UPE1 is dual-homed to the NPE1 and the NPE2.
  • the active/standby relationship is determined or configured on the NPE. Therefore, there is a detection mechanism between the NPE1 and the NPE2 to determine when to switch the active/standby relationship.
  • the management VRRP mVRRP
  • the priority of the VRRP is configured to determine the primary NPE and the standby NPE.
  • the NPEl is currently in the active state, and the NPE2 is currently in the standby state.
  • a peer-to-peer bidirectional fast detection between the NPE1 and the NPE2 can be established.
  • the Peer BFD is used to implement the active/standby state switching of the VRRP, and the link bidirectional fast detection is established between the UPE1 and the NPE1 and the NPE2.
  • Link BFD is used to implement link monitoring.
  • Peer BFD is used to detect link and device faults between NPE and NPE.
  • Link BFD is used to detect link and device faults between NPE and UPE.
  • Peer BFD and Link BFD are implemented together. Fast switching between the active and standby NPE states.
  • the NPE1 and the NPE2 respectively establish a management PW with the UPE1, and the two management PWs on the UPE1 form a management VSI.
  • the mVRRP packets are exchanged through mVSI and mPW.
  • the VSI carried in two LSP management, the closing level of split in the management of the UPE VSI, let p eer BFD 4 Gen transparent transmission.
  • the horizontal split is the full connection between all the PEs in the VPLS network, and the packets received from the PE side are not forwarded to the PE side to avoid the use of the packets.
  • STP Spanning Tree Protocol
  • the UPE 1 and the NPE 1 and the NPE 2 also establish a service VSI and a service PW to transmit and forward user service packets from the access network, and configure the management VSI to be bound to the service VSI.
  • the user service data is connected to the service VSI on the UPE, and is dual-homed to the two NPEs through the service VSI.
  • the service VRRP, the service PW, and the service interface of the NPE are bound to the management VRRP on the NPE.
  • the status of the NVR is determined by the management VRRP. In this case, only the service VRRP, service PW, and service interface of the primary NPE process user service data.
  • the switching mechanism switches the NPE1 to a standby NPE, and switches the NPE2 to a primary NPE.
  • the switchover between the NPE1 and the NPE2 depends not only on the Peer-BFD state in the mVSI but also on the state of the Link-BFD. In the case where the Peer-BFD detects a fault and the Link-BFD does not detect the fault.
  • the active/standby state switching of the NPE1 and the NPE2 can be performed.
  • the NPE2 sends a gratuitous ARP packet to the UPE1 to refresh the MAC forwarding table of the UPE1, and sends a label allocation protocol to the UPE2 device.
  • the MAC forwarding table clears the LDP MAC withdraw message to refresh the MAC forwarding table of the UPE2.
  • the MAC forwarding table of the UPE1 and the UPE2 includes a C-MAC forwarding table of the UPE1 and UPE2 user equipments, and a PBB encapsulation table and a decapsulation table.
  • the user equipment in this embodiment refers to CE1 and CE2.
  • VRRP When VRRP is deployed between UPE2 and NPE1 and NPE2, the NPE2 sends a gratuitous ARP packet to the UPE2 to refresh the MAC forwarding table of the UPE2, and does not send a clear LDP MAC withdraw message to refresh the MAC address of the UPE2. Forwarding table.
  • the UPE1 After receiving the LDP MAC Withdraw message, the UPE1 clears the PBB encapsulation table and the decapsulation table and the user C-MAC that have been learned on the UPE1 and the UPE2, respectively. Forwarding table
  • the UPE When the PBB encapsulation table is used for the packet from the user side to the PBB+H-VPLS network side, the UPE encapsulates the PBB encapsulation information such as B-DMAC, B-SMAC, and IT AG for the packet; and the PBB decapsulation table is used for the packet from the packet.
  • the PBB+H-VPLS network side goes to the user side, the UPE searches the encapsulation table according to the B-SMAC and I-TAG information carried in the packet, and determines which I-VSI the packet belongs to, and the report is Forwarding Go to the corresponding user equipment CE.
  • the UPE1 and the UPE2 perform multicast forwarding on the traffic sent to the PW side, and trigger the learning of the local user C-MAC.
  • the UPE1 and the UPE2 perform multicast forwarding on the traffic sent to the PW side, and trigger the user C-, because the local and remote user C-MAC forwarding tables on the UPE1 and the UPE2 have been cleared.
  • MAC learning The local user of the UPE refers to the user equipment directly connected to the UPE.
  • the local user in this embodiment is CE1 for UPE1 and CE2 for UPE2.
  • the C-MAC learning process on the UPE in the present embodiment includes the uplink learning and the downlink learning, where the uplink refers to the forwarding behavior of the packet before the switching network board in the UPE is called the uplink, and the packet passes through the switching network board.
  • the forwarding behavior is called downlink.
  • Uplink learning is mainly used for uplink MAC restrictions, and downlink learning is mainly used for downlink MAC restriction and forwarding.
  • the MAC address limit is a security feature.
  • the device prevents the device from continuously sending packets with MAC address changes. As a result, the device does not stop learning. As a result, the MAC address table cannot be learned.
  • the UPE searches the MAC forwarding table according to the destination MAC address of the user packet, and carries the MAC learning information to the forwarding downlink.
  • the MAC learning information refers to the outbound interface, PW, and other information in the forwarding table corresponding to the MAC address.
  • the UPE device checks the MAC forwarding table based on the source MAC address of the user packet.
  • the UPE obtains the learning information of the corresponding backhaul, including the outbound interface information and PW information.
  • the UPE uses the source of the user packet.
  • the MAC address is used to check the MAC forwarding table. If the forwarding information is not matched, or the learned information is not consistent with the corresponding backhaul information, the source MAC address learning is performed, and the forwarding entry with the source MAC as the destination MAC address is generated. .
  • the comparison of the obtained forwarding information and the learning information of the corresponding backhaul refers to the outbound interface, the PW, and the like obtained after the hitting the MAC forwarding table, and the outbound interface information and the PW information of the corresponding backhaul obtained when the portal comes in. If the information is inconsistent, the forwarding information is changed.
  • the MAC forwarding table needs to be updated to the learning information carried when the packets obtained by the UPE are imported from the portal.
  • the UPE1 and the UPE2 perform multicast encapsulation on the B-DMAC of the encapsulation table of the PBB+H-VPLS of the traffic on the PW side, and perform multicast transmission to the PW side.
  • the NPE2 forwards the packet received from the UPE1 according to the multicast B-DMAC, and performs MAC-B-SMAC learning. After the B-SMAC learning is completed, the packet is forwarded to the UPE2.
  • the traffic packets are forwarded from the AC side of the UPE1 to the network side of the UPE1.
  • the UPE1 forwards the service traffic to the NPE2.
  • the NPE2 enters the NPE2, it is forwarded according to the B-DMAC.
  • the B-DMAC of the packet sent by the UPE is For multicast MAC addresses, multicast forwarding is performed on NPE2. When forwarding to the downlink, B-SMAC learning is required.
  • the B-SMAC learning process on the NPE is similar to the C-MAC learning on the UPE, except that the encapsulation table and the decapsulation table are not required to be learned, because the packet can only see the outer B-MAC on the NPE.
  • the information of the internal I-TAG and the information related to the encapsulation table and the decapsulation table are not forwarded.
  • the packet is forwarded to the remote UPE2.
  • the UPE2 multicasts the traffic destined for the AC, and triggers the learning of the PBB encapsulation table, the decapsulation table, and the learning of the remote user C-MAC.
  • the traffic going to the AC side of the access circuit is the traffic to the edge device of the local user.
  • the traffic destined for the AC side on the UPE 1 and UPE 2 is decompressed due to the failure to hit the decapsulation table.
  • Broadcasting, and triggering the learning of the PBB encapsulation table, the decapsulation table, and the learning of the remote user C-MAC the remote user is the second UE connected to the UPE2 for the UPE1, for the UPE2 It is the first UE connected by UPE 1.
  • the learning process of the PBB encapsulation table and the decapsulation table is as follows:
  • the UPE receives the PW label packet sent from the remote end, and after the PW label is popped, according to the PW type, the packet is known as the encapsulation format of the PBB H-VPLS, and the extracted text is extracted.
  • the PW tag, the B-SMAC, and the I-TAG look up the PBB+H-VPLS decapsulation table for the table key (Key). If not, the learning module is triggered to dynamically create the encapsulation table and the decapsulation table.
  • the main contents of the encapsulation table and decapsulation table include: PBB+PW unicast encapsulation table: virtual destination MAC (B-DMAC) of the remote UPE, local virtual MAC (B-SMAC), label I- of the service service instance TAG ( Instance TAG ), PW tag, tunnel information.
  • the B-DMAC address is the source MAC extracted from the outer MAC header information of the received message, and the I-TAG is locally configured.
  • the main contents of the decapsulation table of PBB+PW include: virtual destination MAC (B-DMAC) and I-TAG of the remote UPE; among them, B-DMAC, B-VLAN, and I-TAG are all received from the received message.
  • the learning process of the C-MAC of the remote user on UPE1 and UPE2 is the same as the C-MAC learning process of UPE1 and UPE2 in 205, and will not be described here.
  • the UPE1 and the UPE2 complete the learning of the local user and the remote user C-MAC, the PBB encapsulation table, the decapsulation table learning, and the NPE2 complete the B-SMAC MAC learning,
  • the UPE 1, NPE2, and UPE2 perform normal packet forwarding.
  • the MAC forwarding table is checked according to the C-DMAC in the packet. Because it has been learned, the PW forwarding information and the encapsulation table information can be obtained after the hit, and the PBB header (including B) is performed. -DMAC, B-SMAC, I-TAG) encapsulation and PW encapsulation are sent to the NPE2. After receiving the packet, the NPE2 first parses the PW information, and then checks the MAC forwarding table according to the B-DMAC in the packet. After the MAC learning is completed, the PW forwarding information is obtained after the hit, and the PW information is encapsulated. Send the packet to the downstream device.
  • the UPE2 When the UPE2 receives the packet from the PW side, it first parses the PW information and finds that the PBB is enabled. Then, according to the B-SMAC, I-TAG, and PW information encapsulated in the packet, the PBB decapsulation table is checked. After learning, the corresponding I-VSI information is obtained after the hit. After the PBB header is removed, the MAC forwarding table is checked according to the C-DMAC of the user in the message. Since it has been learned, the outgoing interface can be obtained after the hit. Forwarding information for the next Layer 2 forwarding forwards the packet to the user equipment.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Read Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.
  • ROM Read Only Memory
  • RAM Random Access Memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de protection des services dans un réseau PBB H-VPLS, le procédé comprenant les étapes suivantes : en présence d'une anomalie sur un chemin principal entre un premier UPE et un premier NPE, l'effacement par le premier UPE et un deuxième UPE respectivement de tables d'encapsulation et de décapsulation PBB apprises et d'une table de réacheminement C-MAC ; le réacheminement en multidiffusion par le premier UPE et le deuxième UPE du trafic acheminé vers un côté PW, et le déclenchement par le premier UPE et le deuxième UPE de l'apprentissage du C-MAC d'utilisateur local ; le réacheminement par un deuxième NPE, conformément au B-DMAC, d'un paquet reçu du premier UPE et l'apprentissage par le deuxième NPE du B-SMAC ; le réacheminement en multidiffusion par le premier UPE et le deuxième UPE du trafic à destination d'un côté circuit d'accès (AC) et le déclenchement par le premier UPE et le deuxième UPE de l'apprentissage des tables d'encapsulation et de décapsulation PBB et du C-MAC d'utilisateur distant. Selon les modes de réalisation du procédé de protection des services dans le réseau PBB H-VPLS, il est possible de réaliser une commutation rapide du trafic des services sur un PW de secours en cas d'anomalie d'un PW principal, et de réduire ainsi sensiblement la durée d'interruption des services.
PCT/CN2011/079031 2011-01-07 2011-08-29 Procédé de protection des services dans un réseau pbb h-vpls WO2012092779A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110004081.9 2011-01-07
CN 201110004081 CN102594651A (zh) 2011-01-07 2011-01-07 一种pbb h-vpls网络中的业务保护方法

Publications (1)

Publication Number Publication Date
WO2012092779A1 true WO2012092779A1 (fr) 2012-07-12

Family

ID=46457213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/079031 WO2012092779A1 (fr) 2011-01-07 2011-08-29 Procédé de protection des services dans un réseau pbb h-vpls

Country Status (2)

Country Link
CN (1) CN102594651A (fr)
WO (1) WO2012092779A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140204906A1 (en) * 2013-01-20 2014-07-24 Eci Telecom Ltd. Method and apparatus for providing communication services to a moving platform
CN107846356A (zh) * 2016-09-19 2018-03-27 新华三技术有限公司 主备伪线pw快速切换方法和装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102857400B (zh) * 2012-09-14 2016-03-30 中兴通讯股份有限公司 一种二层虚拟专用网中广播域的建立方法及装置
CN103546379A (zh) * 2013-10-30 2014-01-29 杭州华三通信技术有限公司 一种vpls中mac地址表项更新的装置和方法
CN106487677B (zh) * 2015-09-02 2019-10-01 华为技术有限公司 运营商边缘设备及数据转发方法
US10148566B2 (en) * 2016-02-26 2018-12-04 Juniper Networks, Inc. Split-horizon packet forwarding in a multi-home PBB-EVPN network
CN110138605B (zh) * 2019-04-30 2022-06-17 浙江亿邦通信科技有限公司 基于虚拟端口的pw切换方法及装置
CN115242709B (zh) * 2022-07-18 2024-05-24 云合智网(上海)技术有限公司 L2vpn至l3vpn的接入方法、装置、设备及介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101014035A (zh) * 2007-02-05 2007-08-08 华为技术有限公司 城域以太网提供多业务组网下的可靠性处理方法及系统
CN101621550A (zh) * 2009-08-14 2010-01-06 杭州华三通信技术有限公司 Vpls中mac地址回收方法及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101014035A (zh) * 2007-02-05 2007-08-08 华为技术有限公司 城域以太网提供多业务组网下的可靠性处理方法及系统
CN101621550A (zh) * 2009-08-14 2010-01-06 杭州华三通信技术有限公司 Vpls中mac地址回收方法及装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140204906A1 (en) * 2013-01-20 2014-07-24 Eci Telecom Ltd. Method and apparatus for providing communication services to a moving platform
US9648531B2 (en) * 2013-01-20 2017-05-09 Eci Telecom Ltd. Communication services to a moving platform
CN107846356A (zh) * 2016-09-19 2018-03-27 新华三技术有限公司 主备伪线pw快速切换方法和装置
CN107846356B (zh) * 2016-09-19 2020-02-11 新华三技术有限公司 主备伪线pw快速切换方法和装置
US10708184B2 (en) 2016-09-19 2020-07-07 New H3C Technologies Co., Ltd. Switching primary/backup pseudowire

Also Published As

Publication number Publication date
CN102594651A (zh) 2012-07-18

Similar Documents

Publication Publication Date Title
US9338052B2 (en) Method and apparatus for managing the interconnection between network domains
WO2012092779A1 (fr) Procédé de protection des services dans un réseau pbb h-vpls
EP2498454B1 (fr) Procédé, dispositif et système de traitement de trafic de service sur la base de pseudofils
US20130272114A1 (en) Pseudo wire switching method and device
JP5385154B2 (ja) Ｅｔｈｅｒｎｅｔ及びＭＰＬＳネットワークを相互接続する方法及び装置
US8320389B2 (en) Reliability processing methods and systems in the networking of metro ethernet network providing multi-service
US20140092751A1 (en) Ethernet Operation and Maintenance (OAM) with Flexible Forwarding
WO2012028029A1 (fr) Procédé et système de commutation
WO2011103764A1 (fr) Procédé d'envoi de trames ethernet dans service d'arbre ethernet et dispositif côté fournisseur
WO2013053284A1 (fr) Procédé et système de mise en œuvre de réseau privé virtuel sur la base d'un tunnel d'ingénierie de trafic
WO2008119300A1 (fr) Procédé et dispositif de protection pour service d'arborescence ethernet
WO2009012688A1 (fr) Procédé, système et appareil de réacheminement de message dans un réseau privé virtuel à trois couches
WO2007076678A1 (fr) Procede de transfert de donnees et appareil de commutation
US9853833B2 (en) Individual virtual private local area network service conversion to a different virtual private network service
WO2011060667A1 (fr) Procédé et dispositif de protection de liaison dans un réseau privé virtuel local
Xiao et al. Requirements for pseudo-wire emulation edge-to-edge (PWE3)
WO2012024952A1 (fr) {0> procédé et système de commutation de chemin sur la base d'un service point à multipoint <}0{><0}
CN102282805B (zh) 一种业务保护方法及接入设备
US8873431B1 (en) Communications system and method for maintaining topology in a VLAN environment
WO2009092241A1 (fr) Procédé de transmission de message, système de réseau et équipement de nœud en boucle
WO2008011818A1 (fr) Procédé de fourniture d'un service réseau local privé virtuel à hiérarchie et système réseau
WO2011054263A1 (fr) Procédé et système d'accès pour des réseaux privés virtuels (vpn) de niveau 3
WO2011160464A1 (fr) Procédé d'acheminement de message et puce de commutation
WO2012122844A1 (fr) Procédé et système d'interconnexion basé sur le domaine d'interconnexion transparente d'un grand nombre de liens
WO2008095360A1 (fr) Méthode et système de commutation rapide en cas de défaillance d'une liaison d'un réseau privé virtuel

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11855230

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11855230

Country of ref document: EP

Kind code of ref document: A1