WO2016202035A1

WO2016202035A1 - Ethernet ring network multicast proxy mode service convergence method and apparatus

Info

Publication number: WO2016202035A1
Application number: PCT/CN2016/077250
Authority: WO
Inventors: 徐向东
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-06-16
Filing date: 2016-03-24
Publication date: 2016-12-22
Also published as: CN106330645A; CN106330645B

Abstract

Disclosed are an Ethernet ring network multicast proxy mode service convergence method and apparatus. The method comprises: deleting, when a leaving message is received, a packet receiving port from a multicast group member; and checking the multicast group member, sending, if the group member have only one ring network port, the leaving message to the ring network port, and deleting the ring network port from the multicast group member.

Description

Method and device for service convergence of Ethernet ring network multicast proxy mode

Technical field

The embodiments of the present invention relate to, but are not limited to, the Ethernet ring network, and in particular, to an Ethernet ring multicast proxy (Proxy) mode service convergence method and apparatus.

Background technique

The Ethernet ring network is a typical networking application of Ethernet on the metropolitan area network. It solves the problems of weak protection of traditional data networks and poor time for recovery of faults. It can provide fast protection of 50ms and effectively improve the quality of service of the network. reliability.

The Ethernet ring network has the advantage of supporting multicast applications. The traditional data network needs to replicate the multicast stream on each downlink port of the multicast branch node, and the Ethernet ring network only needs to replicate the multicast stream once on the entire ring network. Thereby greatly improving the effectiveness of multicast data stream replication.

As shown in Figure 1, any node device in the Ethernet ring network (except for the root node connected to the multicast source) is peer-to-peer. The ports interconnected between the nodes are both source ports and receiving ports. If multiple multicast source scenarios are considered, all interconnect ports on the ring network are both source ports and receive ports.

For the ring network multicast service, the IGMP (Internet Group Management Protocol) Proxy mode is used to prevent a large number of protocol packets from impacting the network or generating a loopback storm. However, the ring network IGMP Proxy mode has a "ping-pong effect", that is, neighboring device nodes will send inquiries and join each other. If all the users on a node are removed, the ring network port is still in the multicast group. According to the mechanism of the last user leaving the Proxy mode, the device does not send the Leave message to the source port. As a result, the multicast cannot be disconnected on the ring network. The traffic always consumes network bandwidth and the service cannot converge.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a method and apparatus for service convergence in an Ethernet ring multicast Proxy mode. It enables multicast traffic to converge in a shorter time.

The method for the service convergence of the Ethernet ring multicast proxy mode in the embodiment of the present invention includes:

When receiving the leaving message, the receiving port is deleted from the multicast group member.

The multicast group member is checked. If only one ring network port is left in the group member, the leaving message is sent to the ring network port, and the ring network port is deleted from the multicast group member.

Optionally, the method further includes:

When receiving the query packet, check the multicast group member.

If the group member has only one ring network port left and the port is a receiving port, the query message is ignored.

Optionally, before receiving the query message, the method further includes:

Eliminate loops in the Ethernet ring network.

The embodiment of the invention further provides a method for service convergence in the Ethernet ring multicast proxy mode, including:

The multicast group member is checked, and if the group member has no port remaining, the leaving message is sent to the source port.

Optionally, the method further includes:

Stop receiving multicast group data flows forwarded by the uplink multicast source.

The embodiment of the invention further provides an apparatus for service convergence in the Ethernet ring multicast Proxy mode, including:

The first deleting module is configured to remove the receiving port from the multicast group member when receiving the leaving message;

a first processing module, configured to check the multicast group member, if the group member only has one ring network port, send the leaving message to the ring network port, and send the ring network port from Group Deleted in the broadcast group member.

Optionally, the device further includes:

The check module is set to check the multicast group members when receiving the query message.

Ignore the module, set to ignore the query message if there is only one ring port left in the group member and the port is a receiving port.

Optionally, the device further includes:

The first cancellation module is configured to eliminate loops in the Ethernet ring network before receiving the query message.

The second deleting module is configured to remove the receiving port from the multicast group member when receiving the leaving message;

The second processing module is configured to check the multicast group member, and if the group member has no port remaining, send the leaving message to the source port.

Optionally, the device further includes:

The reject module is set to stop receiving the multicast group data stream forwarded by the uplink multicast source.

The embodiment of the invention further provides a computer readable storage medium storing program instructions, which can be implemented when the program instructions are executed.

The embodiment of the present invention effectively solves the "ping-pong effect" of the ring network Proxy multicast by processing the uplink node, the intermediate node, and the edge node in the IGMP Proxy mechanism, and the multicast traffic can converge in a relatively short time, thereby avoiding Long-term occupation of network bandwidth.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a topological diagram of an Ethernet ring network according to an embodiment of the present invention;

2 is a structural diagram of an Ethernet ring network chain structure according to an embodiment of the present invention;

3 is a flowchart of a method for service convergence in an Ethernet ring multicast Proxy mode according to an embodiment of the present invention;

4 is a flowchart of another method for convergence of an Ethernet ring network multicast Proxy mode according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an apparatus for service convergence in an Ethernet ring multicast Proxy mode according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of another apparatus for convergence of an Ethernet ring network multicast Proxy mode according to an embodiment of the present invention.

Embodiments of the invention

The embodiments of the present invention are described below with reference to the accompanying drawings. It should be noted that the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other without conflict.

As shown in Figure 2, the Ethernet ring network that has been clipped by the STP (Spanning Tree Protocol) can be regarded as a chain structure. There are three types of node devices: the uplink node (connecting to the multicast source). Intermediate nodes (both ends are in forwarding state) and edge nodes (only one end is in forwarding state).

The ring network port is an interconnection port between nodes in the Ethernet ring network, which is a source port and a receiving port.

Receiving port: the port that receives the protocol packet;

Source port: Connects to the uplink port of the multicast source.

Receive port: The port connected to the user. The multicast data stream and protocol query packets are forwarded from the port.

As shown in FIG. 2 and FIG. 3, the fast convergence method of the Ethernet ring multicast proxy mode service is applied to an edge node or an intermediate node, including:

Step 31: When the edge node or the intermediate node receives the leaving packet, the receiving port is deleted from the multicast group member.

Step 32: Check the multicast group member, if the group member has only one ring network port, send the leaving message to the ring network port, and set the ring network port from the multicast group member. Deleted.

Optionally, the method further includes:

When receiving the query packet, check the multicast group member.

Optionally, before receiving the query message, the method further includes: eliminating a loop in the Ethernet ring network.

As shown in FIG. 2 and FIG. 4, a fast convergence method of the Ethernet ring multicast proxy mode service is applied to the uplink node, including:

Step 41: When receiving the leaving message, deleting the receiving port from the multicast group member;

In step 42, the multicast group member is checked, and if the group member has no port remaining, the leaving message is sent to the source port.

Optionally, the method further includes: stopping receiving the multicast group data stream forwarded by the uplink multicast source.

In the embodiment of the present invention, the ping-pong effect of the Ethernet ring network Proxy multicast is effectively solved by the special processing of the IGMP proxy mechanism, and the multicast traffic can converge in a short time, thereby avoiding occupying the network bandwidth for a long time.

As shown in FIG. 2 and FIG. 5, a device for fast convergence of an Ethernet ring multicast proxy mode service is configured on an edge node or an intermediate node, including:

The first deleting module 51 is configured to: when receiving the leaving message, deleting the receiving port from the multicast group member;

The first processing module 52 is configured to check the multicast group member, if the group member only has one ring network port, send the leaving message to the ring network port, and send the ring network port Remove from a multicast group member.

Optionally, the device further includes:

As shown in FIG. 2 and FIG. 6 , an apparatus for fast convergence of an Ethernet ring network multicast proxy mode service is configured on an uplink node, including:

The second deleting module 61 is configured to delete the receiving port from the multicast group member when receiving the leaving message;

The second processing module 62 is configured to check the multicast group member, and if the group member has no port remaining, send the leaving message to the source port.

Optionally, the device further includes:

The second cancellation module is configured to eliminate loops in the Ethernet ring network.

Embodiment 1:

As shown in Figure 1, the Ethernet ring network consists of four nodes, of which node 3 is connected to a multicast source, and

ports

2, 3, 4, 5, 7, 8, 9, and 10 are ring ports. Port 6 is configured as the source port, 1 is configured as the receiving port, and 2, 3, 4, 5, 7, 8, 9, 10 are both the source port and the receiving port. The STP status of

ports

9 and 10 is block.

On node 1, the user sends a join message to join the multicast group 224.1.1.1, and adds port 1 as the member port of the multicast group 224.1.1.1. At the same time, the source port 2 sends the join message. Port 3 joins the multicast group member and sends the join message from the source port 3 and 4. In turn, all the interconnected ring ports are added as the member ports of the multicast group 224.1.1.1, and the node 3 is the port. 6 Send the join message to the multicast source, and the multicast data stream enters node 3 from port 6 and forwards it.

At this time,

ports

1, 2, 3, 4, 5, 7, and 8 are member ports of the multicast group 224.1.1.1. The data stream of multicast 224.1.1.1 is forwarded to all nodes and users along 6→7→8 and 6→5→4→3→2→1.

The edge node 4 does not have a corresponding multicast group requesting user, so the data flow forwards the occupied bandwidth to the node. Nodes 3 and 4 communicate with each other through the

ports

7 and 8. The node 4 receives the query packet and checks that only the ring port 9 is in the multicast group and does not respond to the query. Port 7 in node 3 After being removed from the multicast group 224.1.1.1 by aging, the data flow will no longer be forwarded to node 4.

On the node 1, the user sends a Leave message, leaves the multicast group 224.1.1.1, and removes the port 1 from the multicast group member. At this time, the member of the multicast group 224.1.1.1 is checked. Only one ring network port 2 is used, so the slave port 2 Send the leave message and remove port 2 from the multicast group member. After receiving the Leave message, Node 2 deletes the port 3 from the multicast group member. The member of the multicast group is only the ring network 4. Therefore, the port 4 sends the Leave message and the port 4 is deleted from the multicast group member. All the ring ports in the ring network are no longer members of the multicast group 224.1.1.1, and the node 3 sends the leaving packets to the multicast source. The multicast source does not forward the multicast group. Data flow of 224.1.1.1.

A person skilled in the art should understand that the technical solutions of the embodiments of the present invention may be modified or equivalent, without departing from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function. Embodiments of the invention are not limited to any specific form of combination of hardware and software.

Industrial applicability

Claims

A method for service convergence of an Ethernet ring multicast proxy proxy mode includes:

When receiving the leaving message, the receiving port is deleted from the multicast group member.

The multicast group member is checked. If only one ring network port is left in the group member, the leaving message is sent to the ring network port, and the ring network port is deleted from the multicast group member.
The method of claim 1 further comprising:

When receiving the query packet, check the multicast group member.

If the group member has only one ring network port left and the port is a receiving port, the query message is ignored.
The method of claim 2, before the receiving the query message, the method further comprises:

Eliminate loops in the Ethernet ring network.
A method for service convergence of an Ethernet ring multicast proxy proxy mode includes:

When receiving the leaving message, the receiving port is deleted from the multicast group member.

The multicast group member is checked, and if the group member has no port remaining, the leaving message is sent to the source port.
The method of claim 4 further comprising:

Stop receiving multicast group data flows forwarded by the uplink multicast source.
An apparatus for service convergence of an Ethernet ring multicast proxy proxy mode includes:

The first deleting module is configured to remove the receiving port from the multicast group member when receiving the leaving message;

a first processing module, configured to check the multicast group member, if the group member only has one ring network port, send the leaving message to the ring network port, and send the ring network port from Deleted in the multicast group member.
The apparatus of claim 6 further comprising:

The check module is set to check the multicast group members when receiving the query message.

Ignore the module, set to if there is only one ring port left in the group member, and the port If the port is the receiving port, the query message is ignored.
The apparatus of claim 7 further comprising:

The first cancellation module is configured to eliminate loops in the Ethernet ring network before receiving the query message.
An apparatus for service convergence of an Ethernet ring multicast proxy proxy mode includes:

The second deleting module is configured to remove the receiving port from the multicast group member when receiving the leaving message;

The second processing module is configured to check the multicast group member, and if the group member has no port remaining, send the leaving message to the source port.
The apparatus of claim 9 further comprising:

The reject module is set to stop receiving the multicast group data stream forwarded by the uplink multicast source.