CN109617814B - Method for forwarding packet access network policy - Google Patents
Method for forwarding packet access network policy Download PDFInfo
- Publication number
- CN109617814B CN109617814B CN201910028482.4A CN201910028482A CN109617814B CN 109617814 B CN109617814 B CN 109617814B CN 201910028482 A CN201910028482 A CN 201910028482A CN 109617814 B CN109617814 B CN 109617814B
- Authority
- CN
- China
- Prior art keywords
- forwarding
- port
- strategy
- network
- policy
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A method for packet access network strategy forwarding can solve the technical problem that network bandwidth is wasted due to the fact that a special line of a packet access network pursues high reliability at present. The method comprises the following steps of S100, creating a policy forwarding instance; s200, configuring a matching strategy based on the characteristics of the Ethernet data message in a strategy forwarding example; s300, configuring an output port for policy forwarding, and distinguishing a user side port and a network side port; s400, binding an Ethernet data message receiving port by the strategy forwarding instance, and distinguishing a user side port from a network side port. The invention can reduce the relevance between the ports of the private line and is convenient for readjusting the path at the network side; idle resources can be selected through a strategy, and the waste of network bandwidth construction is effectively utilized; scheduling can be carried out aiming at a specific message, and high-priority service transmission is guaranteed preferentially; when the network fails, a method for rapidly recovering the service and a positioning means are provided.
Description
Technical Field
The invention relates to the technical field of network communication, in particular to a method for forwarding a packet access network policy.
Background
A packet access network is a special transmission line established for a user by utilizing a load-bearing network of a packetized mobile data return network (IPRAN/PTN/UTN) to meet the network communication requirement of a large government and enterprise customer while a domestic communication operator conducts base station return network packetization construction, and is a solution for providing a packet network transmission special line specially for the requirement of long-distance communication of the large government and enterprise customer. The whole packet network is based on IP packet forwarding technology, and in particular, in the aspect of special line construction and implementation, a two-layer VPN encapsulation transmission mode based on a label technology is usually adopted, namely, a boundary network element encapsulates a label on an original message accessed by a user side of an operator, then the original message is exchanged and forwarded on the network side according to a set label path, and then the label is popped up at the last hop network element to recover the original message and forward the original message to a target user, so that the purpose that the user can transmit communication through a network private line is achieved.
The general packet access network transmission special line has the following characteristics:
the ports of the same network element belonging to the same special line are correlated;
the path of the private line through which the communication packet is transmitted is deterministic;
the type of the message carried and transmitted is not distinguished in the private line;
different network private lines are logically isolated from each other.
In summary, in a packet access network, a dedicated transmission line is generally established end to end by a border access network element, once established, network element ports of the same path are associated with each other, a user packet enters the access network element port and then starts to encapsulate a label and perform switching forwarding according to the established label path, and service transmissions among a plurality of dedicated transmission lines are independent from each other.
At present, a packet access network dedicated line is a relatively mature scheme, and basically meets the requirements of various network communications of government and enterprise customers, but besides providing high-quality transmission service, network dedicated line transmission has some defects in practical application, specifically as follows:
1. pursuing high reliability results in wasted network bandwidth
In general, in order to ensure the reliability of a dedicated transmission line, an operator may establish a spare dedicated line for a dedicated user line, and in general, the spare dedicated line is in a standby state and does not carry any user message, and all user communication messages are switched to the spare dedicated line for transmission only when an abnormality occurs in the (main) dedicated line. And under the condition that resource conditions allow, part of users also actively require an operator to establish a plurality of equivalent private lines for standby in order to pursue higher reliability. But this also indirectly causes a waste of network resources while improving the transmission reliability.
2. The association of network-side and user-side ports results in complex unbinding
The fault of the private line occurs in the network side of the operator frequently, and besides the need of rapid positioning and fault removal, it is more desirable to rapidly adjust the transmission path of the network side in many cases to preferentially ensure the recovery of user communication. This necessitates the original operations of unbinding and rebinding the association between the network side and the user side ports of the network element, which is cumbersome and may affect the communication traffic that is still being transmitted normally.
3. The path scheduling can not be carried out aiming at the specific message in the special line
Due to different network conditions, transmission quality of transmission private lines passing through different network element paths also differs, and users expect that important services and high-priority messages can be transmitted on private lines with higher transmission quality and more sufficient bandwidth. The transmission private line schedules the messages based on the access port of the user side, and does not distinguish the types of the messages carried in the access port of the private line, so that the transmission of some specific messages in the designated private line cannot be accurately adjusted.
Disclosure of Invention
The invention provides a method for forwarding a packet access network strategy, which can solve the technical problem of network bandwidth waste caused by pursuing high reliability of a special line of the current packet access network.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for packet access network policy forwarding includes:
creating a policy forwarding instance;
configuring a matching strategy based on the characteristics of the Ethernet data message in a strategy forwarding example, wherein the selectable matching items comprise: a source MAC address, a destination MAC address, a VLAN ID, a VLAN priority, an Ethertype ID, a source IP address, a destination IP address, an IP priority, a protocol number, a TCP/UDP source port number, a TCP/UDP destination port number;
configuring an exit port for policy forwarding, and distinguishing a user side port and a network side (logic) port;
and the strategy forwarding instance binds an Ethernet data message receiving port and distinguishes a user side port and a network side port.
The invention has the beneficial effects that:
1) the relevance between the ports of the private lines can be reduced, and the readjustment of the network side path is facilitated;
2) idle resources can be selected through a strategy, and the waste of network bandwidth construction is effectively utilized;
3) scheduling can be carried out aiming at a specific message, and high-priority service transmission is guaranteed preferentially;
4) when the network fails, a method for rapidly recovering the service and a positioning means are provided.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is an introduction of an application scenario in the present invention;
FIG. 3 is a normal forwarding scheme of the dedicated transmission line according to the present invention;
FIG. 4 is an example effect of configuration using policy forwarding in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Fig. 2 is a typical application scenario of the present invention, which uses an access layer border network element as a boundary to distinguish a user side and a network side, and the whole network side network element forms a service transmission bearer network layer by layer.
Fig. 3 shows a normal forwarding manner of the message in the dedicated transmission line according to the present invention, that is, the dedicated transmission line is established end to end, the network side and the user side port of the border network element are associated, and the received message is forwarded according to the predetermined label path without distinguishing the type of the message to be transmitted.
As shown in fig. 4, this example describes that a matching policy for a user packet 2 is configured on a user-side port of a transmission private line 1, and a forwarding action is to modify a next hop-out port to be a network-side (logical) port of the private line 2, so that the user packet 2 is adjusted to be forwarded through the network-side port of the private line 2 without changing an association relationship between an original private network side and the user-side port; and normal forwarding of the user message 1 is not affected.
As shown in fig. 1, a method for packet access network policy forwarding in this embodiment includes:
s100, creating a policy forwarding instance;
s200, configuring a matching strategy based on the characteristics of the Ethernet data message in a strategy forwarding example;
s300, configuring an output port for policy forwarding, and distinguishing a user side port and a network side port;
s400, binding an Ethernet data message receiving port by the strategy forwarding instance, and distinguishing a user side port from a network side port.
The specific implementation comprises the following processes:
case one, policy forwarding binding user side ports:
establishing a (matching item + next hop-out port) forwarding strategy example, and binding a receiving port of a network element user side;
receiving a port enabling strategy forwarding mark by a network element user side;
after entering a network element receiving port, a user Ethernet data message is preferentially matched with message characteristics;
matching the next hop-out port set by the hit message query strategy forwarding, and forwarding unmatched messages normally;
the inquiry strategy forwarding output port is a user side port, and then forwarding is carried out through the output port according to the original Ethernet data message;
if the policy forwarding output port is a network side (logic) port, the corresponding label is encapsulated by the Ethernet data message, and then the Ethernet data message is forwarded according to the corresponding (actual) port according to the label forwarding flow.
Case two, policy forwarding binding network side ports:
establishing a (matching item + next hop-out port) forwarding strategy example, and binding a network element network side receiving port;
a network element network side receives a port enabling strategy forwarding mark;
the bearing message enters a network element receiving port to perform label decapsulation, and then the message characteristics are preferentially matched;
matching the next hop-out port set by the hit message query strategy forwarding, and forwarding unmatched messages normally;
the inquiry strategy forwarding output port is a user side port, and then forwarding is carried out through the output port according to the original Ethernet data message;
if the policy forwarding output port is a network side (logic) port, the corresponding label is encapsulated by the Ethernet data message, and then the Ethernet data message is forwarded according to the corresponding (actual) port according to the label forwarding flow.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A method for packet access network policy forwarding is characterized in that: comprises the following steps of (a) carrying out,
s100, creating a policy forwarding instance;
s200, configuring a matching strategy based on the characteristics of the Ethernet data message in a strategy forwarding example;
s300, configuring an output port for policy forwarding, and distinguishing a user side port and a network side port;
the specific implementation of policy forwarding binding to a user-side port includes the following procedures:
establishing a forwarding strategy example and binding a receiving port of a network element user side;
receiving a port enabling strategy forwarding mark by a network element user side;
after entering a network element receiving port, a user Ethernet data message is preferentially matched with message characteristics;
matching the next hop-out port set by the hit message query strategy forwarding, and forwarding unmatched messages normally;
the inquiry strategy forwarding output port is a user side port, and then forwarding is carried out through the output port according to the original Ethernet data message;
if the strategy forwarding output port is a network side port, encapsulating the corresponding label of the Ethernet data message, and forwarding according to the label forwarding flow and the corresponding port;
the specific implementation of the policy forwarding binding network side port comprises the following procedures:
establishing a forwarding strategy example and binding a receiving port of a network side of a network element;
a network element network side receives a port enabling strategy forwarding mark;
the bearing message enters a network element receiving port to perform label decapsulation, and then the message characteristics are preferentially matched;
matching the next hop-out port set by the hit message query strategy forwarding, and forwarding unmatched messages normally;
the inquiry strategy forwarding output port is a user side port, and then forwarding is carried out through the output port according to the original Ethernet data message;
if the strategy forwarding output port is a network side port, encapsulating the corresponding label of the Ethernet data message, and forwarding according to the label forwarding flow and the corresponding port;
s400, binding an Ethernet data message receiving port by the strategy forwarding instance, and distinguishing a user side port from a network side port.
2. The method of packet access network policy forwarding according to claim 1, wherein:
the step S200 specifically includes:
s201, strategy matching is carried out on the Ethernet data message entering the strategy forwarding process according to the message characteristics of the Ethernet data message;
s202, matching successively according to the configuration items, and if the current item is not hit, switching to the next item for matching;
s203, the matching item is hit and terminated, and the strategy is switched to a strategy forwarding port processing flow;
and S204, if the matching item is not hit, entering normal forwarding flow processing.
3. The method of packet access network policy forwarding according to claim 2, wherein:
the step S200 of matching the policy includes: source MAC address, destination MAC address, VLAN ID, VLAN priority, ethertype ID, source IP address, destination IP address, IP priority, protocol number, TCP/UDP source port number, TCP/UDP destination port number.
4. The method of packet access network policy forwarding according to claim 1, wherein: the step S400 specifically includes:
s401, the network element selects a flow process for the received Ethernet data message according to whether the port enables policy forwarding or not;
s402, if the network element port enables the strategy forwarding, receiving the message and entering a strategy forwarding flow;
and S403, otherwise, entering normal forwarding flow processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028482.4A CN109617814B (en) | 2019-01-11 | 2019-01-11 | Method for forwarding packet access network policy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028482.4A CN109617814B (en) | 2019-01-11 | 2019-01-11 | Method for forwarding packet access network policy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109617814A CN109617814A (en) | 2019-04-12 |
| CN109617814B true CN109617814B (en) | 2021-07-27 |
Family
ID=66016694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910028482.4A Active CN109617814B (en) | 2019-01-11 | 2019-01-11 | Method for forwarding packet access network policy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109617814B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350773A (en) * | 2008-06-20 | 2009-01-21 | 中兴通讯股份有限公司 | Mobile packet network architecture as well as access method for equalizing load of a plurality of firewalls |
| CN102255787A (en) * | 2010-05-19 | 2011-11-23 | 杭州华三通信技术有限公司 | Message processing method based on quality of service and operator network edge equipment |
| CN103152257A (en) * | 2013-03-14 | 2013-06-12 | 杭州华三通信技术有限公司 | Data transmission method and device |
| WO2014147197A1 (en) * | 2013-03-20 | 2014-09-25 | Wolting Holding B.V. | Compiler for and method for software defined networks |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461732C (en) * | 2006-06-16 | 2009-02-11 | 华为技术有限公司 | Ethernet technology switching and forwarding method, system and equipment |
| US8264949B2 (en) * | 2006-08-30 | 2012-09-11 | Rockstar Bidco Lp | Method and apparatus for selecting between available neighbors in a rapid alternate path calculation |
| CN102413060B (en) * | 2011-12-31 | 2014-10-29 | 杭州华三通信技术有限公司 | User private line communication method and equipment used in VPLS (Virtual Private LAN (Local Area Network) Service) network |
| CN103888307B (en) * | 2012-12-20 | 2017-11-17 | 中国电信股份有限公司 | For optimizing method, user side board and the broad access network gate of deep-packet detection |
| US9497129B2 (en) * | 2013-04-10 | 2016-11-15 | Cisco Technology, Inc. | Methods and devices for providing a self-stretching policer |
| CN107959611B (en) * | 2016-10-17 | 2021-03-23 | 华为技术有限公司 | Method, device and system for forwarding message |
-
2019
- 2019-01-11 CN CN201910028482.4A patent/CN109617814B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350773A (en) * | 2008-06-20 | 2009-01-21 | 中兴通讯股份有限公司 | Mobile packet network architecture as well as access method for equalizing load of a plurality of firewalls |
| CN102255787A (en) * | 2010-05-19 | 2011-11-23 | 杭州华三通信技术有限公司 | Message processing method based on quality of service and operator network edge equipment |
| CN103152257A (en) * | 2013-03-14 | 2013-06-12 | 杭州华三通信技术有限公司 | Data transmission method and device |
| WO2014147197A1 (en) * | 2013-03-20 | 2014-09-25 | Wolting Holding B.V. | Compiler for and method for software defined networks |
Non-Patent Citations (2)
| Title |
|---|
| 《Compute-and-Forward Strategies for Cooperative Distributed Antenna Systems》;Song-Nam Hong 等;《IEEE》;20131231;全文 * |
| 《WCDMA系统中高速下行分组接入的接纳控制策略》;邓为 等;《现代电子技术》;20060731;第29卷(第13期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109617814A (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3949293B1 (en) | Slice-based routing | |
| US8817593B2 (en) | Method and apparatus providing failover for a point to point tunnel for wireless local area network split-plane environments | |
| US8948179B2 (en) | Method of multiprotocol label switching encapsulation for united router farm forwarding | |
| US9049106B2 (en) | Multipath virtual router redundancy | |
| US6952397B2 (en) | Communication in a bidirectional ring network with single-direction receiving | |
| US8553552B2 (en) | Stateless load balancer in a multi-node system for transparent processing with packet preservation | |
| US8081611B2 (en) | Mobility label-based networks | |
| CN109995654B (en) | Method and device for transmitting data based on tunnel | |
| US8959201B2 (en) | Limiting control traffic in a redundant gateway architecture | |
| US10075394B2 (en) | Virtual link aggregations across multiple fabric switches | |
| US8446818B2 (en) | Routed split multi-link trunking resiliency for wireless local area network split-plane environments | |
| US20140177475A1 (en) | Method and Device for Managing MAC Address Entry in Trill Network | |
| CN107154896B (en) | Data transmission method and forwarding equipment | |
| CN101164299B (en) | IP network resource configuring method and IP network | |
| US20030210693A1 (en) | Methods and systems preventing frame mis-ordering in explicitly routed networks | |
| WO2007104201A1 (en) | A method for forwarding message in the service tunnel of the ethernet application and a system thereof | |
| CN109617814B (en) | Method for forwarding packet access network policy | |
| CN102461110B (en) | For carrying out the method and system of load balancing to the call session by dicyclo Internet Protocol (IP) network | |
| CN101702664A (en) | Data transmission method, device and system of virtual local area network | |
| EP3190752B1 (en) | Method, apparatus and medium for avoiding traffic flooding due to asymmetric mac learning and achieving predictable convergence for pbb-evpn active-active redundancy | |
| CN116054929A (en) | business protection system | |
| US11516123B2 (en) | Configuring logical network devices for label-switched networks | |
| US20120177055A1 (en) | Switch device, network, and address learning method used for them | |
| CN1859430B (en) | IP Transmission system and its method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |