CN1254051C - User's data service sub speed delivering method in metropolitan area network transmission equipment - Google Patents

User's data service sub speed delivering method in metropolitan area network transmission equipment Download PDF

Info

Publication number
CN1254051C
CN1254051C CN 02147438 CN02147438A CN1254051C CN 1254051 C CN1254051 C CN 1254051C CN 02147438 CN02147438 CN 02147438 CN 02147438 A CN02147438 A CN 02147438A CN 1254051 C CN1254051 C CN 1254051C
Authority
CN
China
Prior art keywords
nested
user
data frame
user data
data
Prior art date
Application number
CN 02147438
Other languages
Chinese (zh)
Other versions
CN1492634A (en
Inventor
杨武
徐前锋
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
Priority to CN 02147438 priority Critical patent/CN1254051C/en
Publication of CN1492634A publication Critical patent/CN1492634A/en
Priority claimed from US11/113,411 external-priority patent/US7660313B2/en
Application granted granted Critical
Publication of CN1254051C publication Critical patent/CN1254051C/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/46Interconnection of networks
    • H04L12/4641Virtual LANs, VLANs, e.g. virtual private networks [VPN]

Abstract

本发明公开了一种利用含有嵌套标签的自定义数据帧在城域网中进行用户数据业务子速率传送的方法,其步骤为将转发表项下发给各传输设备;传输设备接收到用户的数据帧;依据业务需求在接收到的用户数据帧中嵌套入嵌套标签(Tag)以形成一个自定义数据帧,并发送此数据帧;远端传输设备接收到带有所述嵌套标签的自定义数据帧;远端传输设备利用所述自定义数据帧中的所述嵌套标签查找转发表项、删除此嵌套标签并根据转发表项将用户数据帧发送给用户。 The present invention discloses utilizing a custom data frames containing nested tags method subrate user data traffic transmitted in the metropolitan area network, the steps of the forwarding table entries sent in each transmission device; transmission apparatus receives a user data frame; based on business needs nested into nested user tags the received data frame (tag) to form a self-defined data frame, and send the data frame; remote transmission apparatus has received the nested custom tag data frame; distal from the transmission device using the nested label definition data frame forwarding entry lookup, remove this nested tags and transmits the frame data to the user according to the user forwarding entry. 上述方法可以通过增加支持的用户数据业务以降低成本。 The method described above can be supported by adding user data traffic to reduce costs. 另外,由于在嵌套入标签之后,用户数据帧中的VLAN ID可以不全网唯一,使用户数据的安全隔离得到了简化。 Further, since after the nested tags, user data frame network unique VLAN ID can be incomplete, so the user data security isolation is simplified.

Description

城域网传输设备中用户数据业务子速率传送方法 MAN transmission equipment user data traffic sub-rate transmission method

发明领域本发明涉及一种通信传输领域,特别涉及城域网传输设备中用户数据业务的传送方法。 Field of the Invention The present invention relates to a communication transmission, and in particular relates to a method of MAN transmission equipment transmits the user data traffic.

背景技术 Background technique

在城域传输设备中,用户对带宽的租用主要是根据SDH(同步数字体系)的速率,即城域传输设备通道侧VC-TRUNK(虚拟通道)带宽的粒度而定。 In metro transport device, a user of the leased bandwidth is mainly based on the rate SDH (Synchronous Digital Hierarchy), i.e., the channel side metro transport apparatus VC-TRUNK (virtual channel) bandwidth depending on the particle size. 也就是说,在城域网设备中,用户租用的带宽只能是VC-12,VC-3,VC-4等级别,VC-TRUNCK带宽粒度的最小级(VC-12)为2.048Mbps,当用户租用的带宽不足2.048Mbps或其倍数并且用户独自占用了此VC-TRUNCK带宽时,就会造成城域传输网带宽的浪费。 That is, in MAN equipment, a user can only be rented bandwidth VC-12, VC-3, VC-4 level and so on, VC-TRUNCK minimum bandwidth granularity level (VC-12) of 2.048Mbps, when when multiple users to rent or insufficient 2.048Mbps bandwidth and user alone take up this VC-TRUNCK bandwidth metro transport network will result in the waste of bandwidth. 为了使城域传输网的带宽得到有效利用,目前主要采用的是用户数据业务子速率传送技术。 For metropolitan transmission network bandwidth is effectively utilized, mainly uses a sub-rate user data traffic transmission technology. 如图1所示,来自不同端口携带相同或不同VLAN ID1和VLAN ID2(虚拟局域网标识)的以太数据报文(也称为数据帧)通过同一个VC-TRUNCK传送数据报文,在终端设备中再把数据分离出来。 As shown, carrying the same or different VLAN ID1 and VLAN ID2 (VLAN ID) of the Ethernet data packet from a different port 1 (also called data frame) through the same VC-TRUNCK transmit data packets, in the terminal device then the separated data.

目前,已有的用户数据业务子速率传送技术方案直接采用IEEE 802.1P/Q标准,即,将城域网划分成多个VLAN(虚拟局域网),为每个企业分配一个或多个VLAN,VLAN之间不能互访。 At present, the sub-rate user data traffic transmission aspect direct use IEEE 802.1P / Q standards, i.e., the metropolitan area is divided into a plurality of VLAN (Virtual LAN), one or more VLAN assignment for each enterprise, VLAN not between visits. 这样,在同一个VC-TRUNCK中的数据报文可以通过全网唯一的VLAN ID来识别,从而实现“端口+VLAN”查表转发。 Thus, in the same VC-TRUNCK the data packets may be identified by a unique network-wide its VLAN ID, so that "Port + VLAN" forward look-up table. 同时,利用802.1P标准定义的优先级,可以为VLAN分配不同的优先级,从而在一定程度上实现QoS(服务质量)特性。 Simultaneously, 802.1P standard defines priority may be assigned different VLAN priority, thereby realizing QoS (Quality of Service) characteristics to a certain extent. 图2示出了一个IEEE 802.1Q支持的带有VLAN ID的以太网数据帧格式。 FIG 2 illustrates an IEEE 802.1Q Ethernet frame format supported with the VLAN ID. 该数据帧由目标地址字段、源地址字段、802.1Q首标字段、长度/类型字段、数据字段以及校验字段组成,其中,802.1Q首标字段由TPID(标签协议标识符)和TCI(标签控制信息)组成,它们合在一起被称为VLAN Tag(虚拟局域网标签)。 The data frame consists of a destination address field, a source address field, 802.1Q header field, a length / type field, a data field and a check field, where, 802.1Q header field of the TPID (Tag Protocol Identifier) ​​and TCI (Label control information), which are together referred to as VLAN tag (VLAN tag). 从图2中可以看出,802.1Q定义的VLAN ID只有12位,因此在城域网上最多只能支持4096(212)个VLAN。 As can be seen from Figure 2, 802.1Q VLAN ID defined only 12, it can only support up to 4096 (212) on one VLAN MAN. 随着城域网规模的增大,4096个VLAN已经不能满足业务的需求。 With the increase in the size of the metropolitan area, 4096 VLAN can not meet the needs of the business. 另外,由于所有企业内部的VLANID的划分都必须在整个城域网中进行统一规划,因而操作起来十分复杂。 In addition, the plan must be unified throughout the metropolitan area due to the internal division VLANID of all enterprises, which operate very complicated.

发明内容 SUMMARY

本发明的一个目的是通过突破IEEE 802.1Q所规定的VLAN ID的缺乏问题而带来的局域网组网限制问题,以低成本实现大规模VLAN的端到端互联。 An object of the present invention is to break through VLAN ID specified in IEEE 802.1Q problems caused by the lack of LAN network limitations, large-scale Internet at low cost end-to-VLAN. 本发明的另一个目的是解决由于所有企业内部的VLAN ID的划分都必须在整个城域网中进行统一规划而带来的麻烦。 Another object of the invention is to solve the problems due to the division of internal VLAN ID of all enterprises must be unified planning throughout the MAN brought.

为了实现上述目的,本发明提供了一种利用自定义数据帧在城域网中进行用户数据业务子速率传送的方法,该方法包括以下步骤:a)通过对各传输设备进行配置以形成转发表项;b)传输设备接收到用户的数据帧;c)依据业务需求在接收到的用户数据帧中嵌套入嵌套标签(Tag)以形成一个自定义数据帧,并发送此数据帧;d)远端传输设备接收到带有所述嵌套标签的自定义数据帧;e)远端传输设备利用所述自定义数据帧中的所述嵌套标签查找转发表项、删除此嵌套标签并根据转发表项将用户数据帧发送给用户。 To achieve the above object, the present invention provides a method of using custom data frame transmission rate of user data traffic in the sub-MAN, the method comprising the steps of: a) by each transmission apparatus configured to generate forwarding item; b) transmission apparatus receives the user data frames; c) based on business needs nested into nested tags (tag) user data received frames to form a self-defined data frame, and send the data frame; D ) receiving the distal end of the transmission device with the nested custom tag data frames; E) from the distal end of the transmission apparatus using the nested label definition data frame forwarding entries to find, delete nested tags and frames are sent to the user based on the user data forwarding entry.

通过利用在用户数据帧中嵌套的标签来查找转发通道,就可以突破现有技术方案的4096的限制,从而通过增加支持的用户数据业务以降低成本。 To look forward channel by using nested tags in the user data frame, can break through the limitations of the prior art solutions 4096, so that by increasing the support of user data traffic to reduce costs. 另外,由于在嵌套入标签之后,用户数据帧中的VLAN ID可以不全网唯一,从而使用户数据的安全隔离得到了简化。 Further, since after the nested tags, user data frame network unique VLAN ID can be incomplete, so that the user data security isolation is simplified.

附图说明 BRIEF DESCRIPTION

以下将结合多个实施例并参考附图对本发明进行更加详细的说明。 A plurality of embodiments below with reference to the drawings and embodiments of the present invention will be explained in more detail.

图1是城域网传输设备接收和发送用户数据帧的示意图;图2是IEEE 802.1Q支持的带有VLAN ID的以太网帧格式;图3是本发明总体技术方案的流程示意图;图4是根据本发明第一实施例所述的标签嵌套方式;图5是根据本发明第二实施例所述的标签嵌套方式;图6是根据本发明第三实施例所述的标签嵌套方式。 1 is a schematic MAN transmission equipment receives and transmits user data frames; FIG. 2 is supported by the IEEE 802.1Q Ethernet frame format with a VLAN ID; FIG. 3 is a schematic flow diagram of the general aspect of the present invention; FIG. 4 is nested label according to a first embodiment of the embodiment of the present invention; FIG. 5 is a nested label according to a second embodiment of the present invention described in Example; FIG. 6 is a nested label according to a third embodiment of the present invention described .

具体实施方式 Detailed ways

图3是根据本发明所述用户数据业务子速率传送方法的总体流程框图。 FIG 3 is a block diagram of the overall flow of the user data transfer method of the present invention subrate traffic. 如图3所示,在步骤1中,各传输设备收到转发表项,此转发表项可在当传输设备间有多个用户数据帧通过虚拟通道时由网络管理员配置并下发,也可在用户租用线路时就由网络管理员配置下发到各传输设备中。 3, in step 1, each of the transmission device receives forwarding entry, this forwarding entries may be disposed between the transmission apparatus when there is a plurality of frames of user data through virtual channels and issued by the network administrator, and it may be configured by the network administrator at the time of transmission equipment onward transport leased line user. 在步骤2中,传输设备通过千兆以太网或百兆以太网(GE/FE)端口接收到用户数据帧。 In step 2, the transmission device receives the user interface data frame Fast Ethernet or Gigabit Ethernet (GE / FE). 接下来,步骤3中,传输设备依据业务的需求,通过硬件、软件或硬件与软件结合的方式在用户数据帧中嵌套入嵌套标签(Tag),从而形成一个自定义数据帧,并通过虚拟通道将此自定义数据帧发送至远端传输设备。 Next, in Step 3, the transmission apparatus needs based services, hardware, software, or a combination of hardware and software in the user data into a nested frame nested tags (the Tag), thereby forming a custom data frame, and by this custom virtual channel frames sent to the remote data transmission apparatus. 在步骤4中,远端传输设备通过其GE/FE端口接收到上述自定义数据帧。 In step 4, the remote transmission device receives the data frame through its custom GE / FE ports. 最后,在步骤5中,在接收到上述带有嵌套标签的自定义数据帧之后,远端传输设备从该自定义数据帧中提取出嵌套标签,并且利用提取出来的嵌套标签查找转发表项,然后删除嵌套标签并根据转发表项将数据帧转发给用户。 Finally, in step 5, after receiving the data frame with nested custom tag, the remote transmission device is extracted from the data frame out of custom nested labels, and extracted using nested tag lookup turn entry, and then delete the entries based on nested tags and turn forwards the data frame to the user.

从以上内容中可以看出,本发明的目的是通过在用户数据帧中嵌套入标签以形成一个新的自定义数据帧而得以实现的。 As can be seen from the above, the object of the present invention is a user data frame by the nested label to form a new custom data frames can be realized. 对所属领域的技术人员来说,在用户数据帧中嵌套标签可以采用多种已知的方式。 Of ordinary skill in the art, nested tags in the user data frame may be employed a variety of known ways. 本发明所要解决的技术问题是利用现有的在数据帧中嵌套标签的方法,根据在用户数据帧中标签嵌套位置的不同,以及标签的局域性和全局性概念,本发明给出了以下几种实现方案。 The present invention solves the technical problem is to use the conventional method of nested tags in the data frame, in accordance with local and global concept of different tags nested position, and a label in the user data frame, the present invention is given in the following implementation.

第一实施例:在用户数据帧的802.1Q的前面嵌套一个标签,标签使用局部变量如图4所示,第一实施例中采用了VLAN嵌套技术,即,在802.1Q数据帧的VLAN Tag(即,图2中的802.1Q标签首标)之前再添加一个与802.1Q定义相同的VLAN Tag。 First embodiment: user data in the previous frame 802.1Q nesting a label, the label using local variables shown in Figure 4, a first embodiment of nested VLAN technology employed, i.e., the data frame 802.1Q VLAN tag (i.e., 802.1Q tag header in FIG. 2) prior to re-add the same definition 802.1Q VLAN tag. 这样,在实现用户业务子速率传送时,当数据帧带有相同的802.1Q的VLAN ID时,可以通过嵌套的VLAN ID来识别它。 Thus, when implementing the user traffic sub-rate transmission, when the data frames with the same VLAN ID 802.1Q, it may be identified using nested VLAN ID. 在采用图4所示标签嵌套方式的情况下,其处理流程如下:1)在两个传输设备间有多个用户数据帧通过一个虚拟通道时,由网络管理员配置嵌套VLAN ID数据区来区分不同的用户数据业务,并下发转发表项到两个传输设备中。 In the case of nested tags shown in FIG. 4, the process is as follows: 1) a plurality of user data frames via a transmission virtual channel between two devices, the network administrator configures the VLAN ID nested data area to distinguish different user data traffic, and the forwarding entries to two transmission devices. 2)城域网传输设备接收到用户的802.1Q VLAN帧。 2) MAN transmission equipment receives a user's 802.1Q VLAN frame. 3)当有用户数据业务子速率传送时,城域网传输设备添加嵌套的VLAN Tag。 3) When the user traffic sub-rate data transmission, the MAN transmission equipment is added nested VLAN Tag. 4)远端的城域网传输设备接收到带有嵌套VLAN Tag的数据帧。 4) the distal end of MAN transmission equipment is received with nested VLAN Tag data frames. 5)有用户业务子速率传送时,远端的城域网传输设备删除嵌套的VLAN Tag并将根据转发表项将802.1Q帧发送给用户。 5) there is a user traffic sub-rate transmission, the distal end of the MAN transmission equipment nesting VLAN Tag and delete the forwarding entry sent 802.1Q frame according to the user. 在第一实施例所述的嵌套VLAN的方案中,对转发通道的查找采用“Port(端口)+VLAN+嵌套VLAN”的方式。 In the embodiment according to the first embodiment nested VLAN embodiment, the lookup of the forwarding path by way of "Port (Port) + VLAN + nested VLAN" of. 这里,所述嵌套VLAN是一个局部变量,它与VLAN和Port一起构成了用户数据帧的目的地址。 Here, the nesting VLAN is a local variable, and it VLAN Port constitute the destination address with the user data frame. 因此,用户数据帧中的VLAN ID可以不全网唯一,只需配置传输设备两个节点之间的嵌套的VLAN ID即可。 Thus, the user data frame network unique VLAN ID can be incomplete, simply disposed nested between the transmission device to two nodes VLAN ID.

第二实施例:在用户数据帧的802.1Q的前面嵌套一个标签,标签使用全局变量。 Second Embodiment: In the front of the user data frame a nesting 802.1Q label, tag global variables.

如图5所示,在第二实施例中,嵌套在802.1Q标签之前的标签由VCLine字段和Type(类型)域组成。 5, in the second embodiment, the nested label before 802.1Q tag field and by VCLine the Type (type) domain. 这里,本发明人引入了一个VCLine ID(虚拟通道线路标识)的概念。 Here, the present invention introduces a concept VCLine ID (Virtual Channel Line Identity). 当用户向运营商租用线路的时候,每配置一条租用线路,就有一个VCLine ID产生,并且VCLine ID的长度可由用户自定义。 When the user of the leased line to the operator, a leased line for each configuration, there is a VCLine ID generated by the user and the length VCLine ID custom. 另外,Type域是IEEE组织没有使用、可供设备制造商使用的字段。 In addition, Type IEEE domain organization is not used, the field device manufacturer for use. 在采用图5所示标签嵌套方式的情况下,其处理流程如下:1)在网络管理员对用户向运营商租用的线路进行配置的过程中,VCLine ID就被下发到经过传输设备所有节点的表项中。 In the case of nested tags embodiment shown in Figure 5, which process is as follows: 1) In the process for the user to configure the network administrator to the operator leased line, VCLine ID was issued to the transmission apparatus through all entry nodes. 2)城域网传输设备接收到用户的802.1QVLAN帧。 2) MAN transmission equipment receives a user's 802.1QVLAN frame. 3)无论有无用户数据业务子速率传送,城域网传输设备都将嵌套的VLAN Tag添加在数据帧中;4)远端的城域网传输设备接收到带有VCLine ID的数据帧。 3) regardless of whether user data traffic sub-rate transmission, the MAN transmission equipment will be added to the nested VLAN Tag data frame; 4) of the distal end of the MAN transmission equipment receiving the data frames with the VCLine ID. 5)远端的城域网传输设备删除VCLine ID并将802.1Q帧发送给用户。 5) Remove the distal end of the MAN transmission equipment VCLine ID 802.1Q frame and sent to the user. 与第一实施例中利用“Port(端口)+VLAN+嵌套VLAN”来查找转发通道的方式相比,本实施例只需使用“VCLine ID”来查找,因此它具有较高的转发效率。 Using the first embodiment "Port (Port) + VLAN + nested VLAN" in a way to find the forwarding path as compared to the present embodiment, just use "VCLine ID" to locate, so it has a higher forwarding efficiency. 另外,由于VCLine ID为全局变量,并且其长度可由用户自定义,因此其支持的用户数据业务没有限制。 Further, since the VCLine ID global variable, and its length can be user-defined, so that it supports user data traffic is not limited.

第三实施例:在用户数据帧的802.1Q的后面嵌套一个标签,标签使用局部变量。 Third Embodiment: a nested 802.1Q tag behind a user data frame, the local variable label used.

第三实施例中采用了MPLS嵌套技术,即,在802.1Q数据帧的VLANTag之后添加一个与MPLS(多协议标签交换)协议定义相同的标签。 The third embodiment uses a nested MPLS technology, i.e., adding the same and a MPLS (Multiprotocol Label Switching) protocol defined in 802.1Q tag after data frame VLANTag. 图6中示出了MPLS标签的结构。 FIG. 6 shows the structure of the MPLS label. 当有用户业务子速率传送时,用户数据帧通过嵌套的MPLS标签中的Label字段来识别。 When a user traffic sub-rate transmission, user data frames identified by the nested MPLS label Label field. 在采用图6所示标签嵌套方式的情况下,其处理流程如下:1)在两个传输设备间有多个用户数据帧通过一个虚拟通道时,由网络管理员配置MPLS Label(标签)区分不同的用户数据业务,并下发转发表项到两个传输设备中。 In the case of nested tags shown in FIG. 6, the process is as follows: 1) a plurality of user data frames via a transmission virtual channel between two devices, the network administrator has MPLS Label (label) to distinguish different user data traffic, and the forwarding entries to two transmission devices. 2)城域网传输设备接收到用户的数据帧。 2) MAN transmission equipment receives a user data frame. 3)城域网传输设备添加嵌套的MPLS标签。 3) add a nested MAN transmission equipment MPLS label. 4)远端的城域网传输设备接收到带有嵌套MPLS标签的数据帧。 4) the distal end of the MAN transmission equipment receives a data frame with nested MPLS labels. 5)远端的城域网传输设备删除嵌套的MPLS并将数据帧发送给用户。 5) the distal end of the MAN transmission equipment and remove the nested MPLS data frame transmitted to the user. 在第三实施例所述的嵌套MPLS的方案中,对转发表项的查找是利用MPLS标签中的Label字段进行的,转发表项采用静态配置,支持用户数据业务报文为MPLS类型的报文。 Nested MPLS protocol according to the third embodiment, the lookup table entry for forwarding by using the MPLS label of the Label fields, static forwarding entries arranged to support packet data service to the user type of MPLS packets Wen. 如图6所示,由于MPLS标签中的Label的长度足够长(20位),因而可以满足用户业务的需求。 6, since the MPLS label Label length is sufficiently long (20), and thus meet the needs of the business users. 而且只需一种方式就可以实现有无子速率的多种配置方式。 And only one way you can achieve a variety of configurations with or without the child rate.

在本说明书中,对本发明的说明是根据多个具体实施例来进行的。 In the present specification, description of the present invention is carried out according to various embodiments. 对所属领域的技术人员来说,在不脱离本发明的精神和范围的情况下,可以对其进行各种修改和变换。 Of ordinary skill in the art, without departing from the spirit and scope of the present invention, it can make various modifications and variations. 例如,在第一实施例中,局部变量嵌套标签被插入到VLAN Tag的前面,但是,也可将其放在VLAN Tag的后面,而且嵌套标签也可以使用全局变量。 For example, in the first embodiment, the local variables are nested tags inserted before the VLAN Tag, however, it may be placed behind the VLAN Tag, and nested tags may use global variables. 类似地,在第二和第三实施例中,嵌套标签的位置及变量类型也可被改变。 Similarly, in the second embodiment and the third embodiment, the position of the variable type and nested tags may also be changed. 另外,也可以采用符合其它通讯协议定义的嵌套标签。 Further, nested labels may be used in line with other communication protocol definition. 不背离本发明精神的各种改型均在本发明所附的权利要求的保护范围内。 Without departing from the spirit of the invention various modifications are within the scope of the appended claims.

Claims (6)

1.一种城域网中进行用户数据业务子速率传送的方法,包括以下步骤:(a)通过对各传输设备进行配置以形成转发表项;(b)传输设备接收到用户的数据帧;(c)依据业务需求在接收到的用户数据帧中嵌套入嵌套标签以形成一个自定义数据帧,并发送此数据帧;(d)远端传输设备接收到带有所述嵌套标签的自定义数据帧;以及(e)远端传输设备利用所述自定义数据帧中的所述嵌套标签查找转发表项然后删除所述自定义数据帧的该嵌套标签,根据转发表项将所述用户数据帧发送给用户。 CLAIMS 1. A method for MAN service sub-rate transmission of user data, comprising the steps of: (a) by each transmission device to configure forwarding entries; (b) transmitting user device receives the data frame; (c) based on business needs of the user data received frames nested into nested to form a custom tag data frame, and send the data frame; (d) receiving the remote transmission device with the nested labels custom data frame; and (e) using the transmission device from the distal end of the nested label definition data frame to find the nested label forwarding entry is then deleted from the definition of the data frame, according to the forwarding table entry the user data frames are sent to the user.
2.根据权利要求1所述的用户数据业务子速率传送方法,其特征在于,所述嵌套标签使用局部变量或者全局变量。 2. The sub-rate user data traffic transmission method according to claim 1, wherein said nested tags using a local variable or global variable.
3.根据权利要求2所述的用户数据业务子速率传送方法,其特征在于,所述嵌套标签是与所述用户数据帧中的802.1Q标签定义相同的VLAN Tag局部变量,它与所述用户数据帧结合在一起形成了所述自定义数据帧。 3. The user data traffic sub-rate transmission method according to claim 2, wherein said nested tags are the same as defined in the user data frame 802.1Q tag VLAN Tag local variable, with said user data frame together form a frame of the custom data.
4.根据权利要求2所述的用户数据业务子速率传送方法,其特征在于,所述嵌套标签是含有自定义字段的全局变量,它与所述用户数据帧结合在一起形成了所述自定义数据帧。 The user data traffic sub-rate transmission method according to claim 2, wherein said tag is a global variable containing nested custom fields, combined to form a frame from the data that the user define a data frame.
5.根据权利要求2所述的用户数据业务子速率传送方法,其特征在于,所述嵌套标签是与MPLS协议定义相同的标签局部变量,它与所述用户数据帧结合在一起形成了所述自定义数据帧。 The user data traffic sub-rate transmission method according to claim 2, wherein said nested tags are the same as defined MPLS Label local variable, with said user data frames are combined together to form said custom data frames.
6.根据权利要求3、4或5中的任何一个权利要求所述的用户数据业务子速率传送方法,其特征在于,在步骤(c)中,所述嵌套标签被嵌套在用户数据帧的802.1Q标签的前面或者后面。 The 3,4 subrate traffic or user data transmission method as claimed in any one of claim 5 to claim, wherein, in step (c), the nested tags are nested in the user data frame front or rear of the 802.1Q tag.
CN 02147438 2002-10-25 2002-10-25 User's data service sub speed delivering method in metropolitan area network transmission equipment CN1254051C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02147438 CN1254051C (en) 2002-10-25 2002-10-25 User's data service sub speed delivering method in metropolitan area network transmission equipment

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN 02147438 CN1254051C (en) 2002-10-25 2002-10-25 User's data service sub speed delivering method in metropolitan area network transmission equipment
PCT/CN2003/000897 WO2004039001A1 (en) 2002-10-25 2003-10-24 The sub-rate transmission method of user data service in transmission apparatus of wan
CA 2505004 CA2505004C (en) 2002-10-25 2003-10-24 A sub-rate transmission method for user data services in transmission devices of a metropolitan area network
AU2003280542A AU2003280542A1 (en) 2002-10-25 2003-10-24 The sub-rate transmission method of user data service in transmission apparatus of wan
US11/113,411 US7660313B2 (en) 2002-10-25 2005-04-22 Sub-rate transmission method for user data services in transmission devices of a metropolitan area network

Publications (2)

Publication Number Publication Date
CN1492634A CN1492634A (en) 2004-04-28
CN1254051C true CN1254051C (en) 2006-04-26

Family

ID=32111551

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02147438 CN1254051C (en) 2002-10-25 2002-10-25 User's data service sub speed delivering method in metropolitan area network transmission equipment

Country Status (4)

Country Link
CN (1) CN1254051C (en)
AU (1) AU2003280542A1 (en)
CA (1) CA2505004C (en)
WO (1) WO2004039001A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194656B2 (en) * 2005-04-28 2012-06-05 Cisco Technology, Inc. Metro ethernet network with scaled broadcast and service instance domains
CN100377548C (en) * 2005-07-15 2008-03-26 华为技术有限公司 Method and device for realizing virtual exchange
DE102005035201B4 (en) 2005-07-27 2009-02-26 Siemens Ag Network node unit and method for forwarding data packets
CN101064682B (en) * 2006-04-29 2010-08-04 华为技术有限公司 Optical network terminal and its packet processing method thereof
CN101453673B (en) * 2006-08-21 2011-09-14 华为技术有限公司 Optical network terminal, and packet process method thereof
CN101616020B (en) 2008-06-27 2011-09-21 中兴通讯股份有限公司 Alarming information processing method
CN103475559B (en) * 2013-09-18 2017-01-11 北京锐安科技有限公司 A method of processing according to the message and forwards the contents of the packet and system
CN103532857B (en) * 2013-10-28 2016-09-14 北京锐安科技有限公司 A method and apparatus for data forwarding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7088721B1 (en) * 1997-07-17 2006-08-08 International Business Machines Corporation Method and apparatus for multipoint-to-point transmission in an ATM network
KR100703499B1 (en) * 2000-12-09 2007-04-03 삼성전자주식회사 Database structure for implementing traffic engineering function in multi protocol label switching system and constructing method thereof
CN1125545C (en) * 2001-12-31 2003-10-22 刘军民 Data formarding method for implementing virtual channel transmission in LAN

Also Published As

Publication number Publication date
WO2004039001A1 (en) 2004-05-06
CA2505004C (en) 2011-08-02
AU2003280542A1 (en) 2004-05-13
CN1492634A (en) 2004-04-28
CA2505004A1 (en) 2004-05-06

Similar Documents

Publication Publication Date Title
US7283465B2 (en) Hierarchical virtual private LAN service protection scheme
US7463597B1 (en) Spanning tree protocol synchronization within virtual private networks
RU2321959C2 (en) Source identifier for finding the mac-address
US7821929B2 (en) System and method for controlling communication flow rates
EP1720024B1 (en) A method for realizing the pseudo wire emulation edge-to-edge protocol
US8213435B2 (en) Comprehensive model for VPLS
US8693323B1 (en) System and method for managing communications in an access network
US9124486B2 (en) Method for establishing multi segment pseudowire across domains having different pseudowire signaling protocol
US7619966B2 (en) Hybrid virtual private LAN extensions
US7463639B1 (en) Edge devices for providing a transparent LAN segment service and configuring such edge devices
US8713185B2 (en) Methods of establishing virtual circuits and of providing a virtual private network service through a shared network, and provider edge device for such network
Martini et al. Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)
JP4225681B2 (en) Virtual private network construction method and apparatus, and a relay device
US8009674B2 (en) Transport networks supporting virtual private networks, and configuring such networks
US7221675B2 (en) Address resolution method for a virtual private network, and customer edge device for implementing the method
EP3171545A1 (en) Data mirroring
EP1943785B1 (en) Multilink trunking for encapsulated traffic
US7606203B1 (en) Packet/octet loss measurement for bridging domains
US7751399B2 (en) Scalable virtual private local area network service
US7417950B2 (en) Method and apparatus for performing data flow ingress/egress admission control in a provider network
JP4531063B2 (en) System and method for ensuring quality of service in a virtual private network
EP1713197B1 (en) A method for implementing the virtual leased line
US20050190757A1 (en) Interworking between Ethernet and non-Ethernet customer sites for VPLS
EP1585258A1 (en) System and method for a communications access network
Knight et al. Layer 2 and 3 virtual private networks: taxonomy, technology, and standardization efforts

Legal Events

Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted