WO2017088494A1

WO2017088494A1 - Link management method and apparatus

Info

Publication number: WO2017088494A1
Application number: PCT/CN2016/089456
Authority: WO
Inventors: 王其磊
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-11-26
Filing date: 2016-07-08
Publication date: 2017-06-01
Also published as: CN106803785A

Abstract

A link management method and apparatus. The link management method comprises: in an embodiment of the present invention, a first node acquires link attribute information, the link attribute information comprising information of an unavailable timeslot of first link ports connected to the first node, the first link ports comprising a connection port of a second node connected to the first node, and the second node being connected to the first node; and the first node determines the unavailable timeslot of the first link port on a link according to the link attribute information. By means of the technical solution provided in embodiments of the present invention, a first node and a second node negotiate on available resources on two ends of a FlexE link, thereby improving the data transmission efficiency of the flexible Ethernet.

Description

Link management method and device

Technical field

The embodiments of the present invention relate to, but are not limited to, communication technologies, and in particular, to a link management method and apparatus.

Background technique

With the development of communication technology, a new transmission technology called Flexible Ethernet (FlexE) is developing.

Flexible Ethernet can implement multiple transmission methods. For example, the first one bundles multiple Ethernet physical layer (PHY) signals, for example, by binding two 100GBASE-R PHYs to carry a 200G media access. Control (MAC, Media Access Control) signal. Alternatively, second, the Ethernet PHY signal carries a sub-rate signal, such as a 100GBASE-R PHY, to carry a 50G signal. Or, third, a channelization within a PHY signal or a set of bound PHY signals, for example, supporting transmission of one 150G signal and two 25G signals on three bonded 100GBASE-R PHYs.

However, in the implementation process of flexible Ethernet, the link attribute is considered when establishing the path, and the first node in the related technology cannot automatically acquire the link attribute with the second node, so that the path establishment is likely to be caused. Success, so that data can not be transferred, resulting in less efficient data transmission of flexible Ethernet.

Summary of the invention

The embodiment of the invention provides a link management method and device, which can improve the data transmission efficiency of the flexible Ethernet.

In one aspect, an embodiment of the present invention provides a link management method, including:

The first node acquires link attribute information, where the link attribute information includes unavailable time slot information on the first link port connected to the first node, where the first link port includes a second connection with the first node The connection port of the node;

The first node determines an unavailable time slot of the first link port on the link according to the obtained link attribute information.

Optionally, the acquiring, by the first node, the link attribute information includes:

The first node receives first link digest response information from the second node; wherein the first link digest response information carries at least first attribute information including information of an unavailable time slot of the first link port .

Optionally, before the first node receives the first link digest response information sent by the second node, the method further includes:

Sending, by the first node, link summary information to the second node, where the link summary information carries the second attribute information, where the second attribute information includes that the second link port connected to the first node is unavailable. Information of the time slot, the second link port comprising a connection port of the first node.

Optionally, after the first node obtains the link attribute information, before the first node determines the unavailable time slot of the first link port on the link, the method further includes:

The first node sends a second link digest response information to the second node, where the second link digest response information carries the first attribute information and the second attribute information.

Optionally, the first attribute information is carried in a link summary message of a link management protocol;

The second attribute information is carried in a link summary message of the link management protocol.

The embodiment of the invention further provides a link management method, including:

The second node determines link attribute information, where the link attribute information includes unavailable time slot information on the first link port connected to the first node, where the first link port includes a connection port of the second node, The second node is connected to the first node;

The second node transmits the determined link attribute information to the first node.

Optionally, before the sending, by the second node, the link attribute information to the first node, the method further includes:

The second node receives the link summary information sent by the first node, where the link summary information carries the second attribute information, the second attribute information includes the information of the unavailable time slot of the second link port, and the second The link port includes a connection port of the first node;

The second node determines an unavailable time slot of the second link port according to the received link summary information.

Optionally, after the sending, by the second node, the link attribute information to the first node, the method further includes:

The second node receives the second link digest response information sent by the first node, where the second link digest response information carries the first attribute information and the second attribute information.

In another aspect, an embodiment of the present invention further provides a link management apparatus, including:

An acquiring module, configured to obtain link attribute information, where the link attribute information includes unavailable time slot information on a first link port connected to the first node where the first link is located, and the first link port includes a connection port of the second node The second node is connected to the first node;

The determining module is configured to determine an unavailable time slot of the first link port on the link according to the obtained link attribute information.

Optionally, the acquiring module is specifically configured to: receive the first link digest response information from the second node, where the first link digest response information carries at least the first attribute information, where the first attribute information includes Information of the unavailable time slots of the first link port.

Optionally, the method further includes: a sending module, configured to send link summary information to the second node, where the link summary information carries second attribute information, where the second attribute information includes a first connection with the first node The information of the unavailable time slot of the two link port, and the second link port includes the connection port of the first node.

Optionally, the sending module is further configured to: send the second link digest response information to the second node, where the second link digest response information carries the first attribute information and the second attribute information .

In a further aspect, the embodiment of the present invention further provides a link management apparatus, including:

a determining module, configured to determine link attribute information, where the link attribute information includes unavailable time slot information on a first link port connected to the first node, where the first link port includes a connection port of the second node where the first link port is located The second node is connected to the first node;

And a sending module, configured to send the link attribute information to the first node.

Optionally, the method further includes: a receiving module, configured to:

Receiving the link summary information sent by the first node, where the link summary information carries the second attribute information, the second attribute information includes information of the unavailable time slot of the second link port, and the second link port includes the The connection port of the first node;

The determining module is further configured to: determine an unavailable time slot of the second link port according to the link summary information.

Optionally, the receiving module is further configured to: receive the second link digest response information sent by the first node, where the second link digest response information carries the first attribute information and the second attribute information.

The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing any of the above link management methods.

The embodiment of the present invention includes the first node acquiring link attribute information, where the link attribute information includes: unavailable time slot information on the first link port connected to the first node, where the first link port includes a connection port of the second node connected to the first node, the second node is connected to the first node; the first node determines the link on the link according to the link attribute information Unavailable time slot of the first link port. Thereby, the available resources at both ends of the FlexE link are negotiated between the first node and the second node, thereby improving the data transmission efficiency of the flexible Ethernet.

Other features and advantages of the embodiments of the invention will be set forth in the description in the description which The objectives and other advantages of the invention may be realized and obtained by means of the structure particularly pointed in the appended claims.

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

BRIEF abstract

The drawings serve to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. The technical solutions of the present invention are used in conjunction with the embodiments of the present application, and do not constitute a limitation of the technical solutions of the present invention.

1 is a schematic flowchart of an embodiment of a link management method according to an embodiment of the present invention;

2 is a schematic structural diagram of a flexible Ethernet unavailable time slot sub-object according to an embodiment of a link management method according to an embodiment of the present invention;

3 is a schematic structural diagram of an embodiment of a link management method according to an embodiment of the present invention;

4 is a schematic flowchart of a second embodiment of a link management method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of a link management apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a second embodiment of a link management apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a third embodiment of a link management apparatus according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a fourth embodiment of a link management apparatus according to an embodiment of the present invention.

Preferred embodiment of the invention

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The link management method provided in this embodiment of the present invention may be applied to a link in which a first node acquires a link attribute in a flexible Ethernet, where the link may be a link directly or indirectly connected to the first node. The link management method provided by the embodiment of the present invention may be specifically implemented by a link management apparatus, where the link management apparatus may be integrated in a node in a flexible Ethernet, or may be separately set, wherein the link management apparatus may adopt software. And / or hardware to achieve. The link management method and apparatus provided in the embodiments of the present invention are described in detail below.

FIG. 1 is a schematic flowchart of a link management method according to an embodiment of the present invention. As shown in FIG.

Step 101: The first node acquires link attribute information.

In this embodiment, the link attribute information includes: unavailable time slot information on the first link port connected to the first node; wherein, the first link port includes: a connection port of the second node, and the second node is The first node is connected, that is, the second node may be a node adjacent to the first node, Alternatively, the second node may be a node that is indirectly connected to the first node.

Step 102: The first node determines, according to the obtained link attribute information, an unavailable time slot of the first link port on the link.

The first link port refers to a port connected to the first node at the other end of the link, and the first node can determine the unavailable time slot information on the link according to the attribute of the other end port of the link.

Specifically, the first node determines the unavailable time slot on the link according to the link attribute information, such as the unavailable time slot information on the link connected to the first node.

The embodiments of the present invention implement the negotiation of the available resources at the two ends of the FlexE link between the first node and the second node, thereby improving the data transmission efficiency of the flexible Ethernet.

The first node in the foregoing step 101 obtains link attribute information, including:

The first node receives the first link digest response information sent by the second node, where the first link digest response information carries at least the first attribute information, where the first attribute information includes the information of the unavailable time slot of the first link port, that is, the chain Road attribute information.

Specifically, the first link digest response information may include link summary veto information (LinkSummaryNAck message), and the link digest veto information carries at least the first attribute information, where the first attribute information includes when the first link port is unavailable. Information on the gap. Alternatively, the first link digest response information may include link digest acknowledgement information, and the link digest dormant information carries at least first attribute information, where the first attribute information includes information of an unavailable time slot of the first link port.

Further, before the first node receives the first link digest response information sent by the second node, the method further includes:

The first node sends a link summary information (LinkSummary message) to the second node, where the link summary information carries the second attribute information, where the second attribute information includes information about the unavailable time slot of the second link port connected to the first node. The second link port includes a connection port of the first node.

Further, after the first node obtains the link attribute information, before step 102, the method further includes:

The first node sends the second link digest response information to the second node, where the second link digest response information carries the first attribute information and the second attribute information.

FIG. 2 is a schematic structural diagram of a flexible Ethernet unavailable time slot sub-object according to an embodiment of a link management method according to an embodiment of the present invention. As shown in FIG. 2, the first attribute information is carried in a flexible Ethernet. The time slot sub-object is used; the second attribute information is carried in the flexible Ethernet unusable time slot sub-object.

Among them, flexible Ethernet can not use the time slot sub-objects including: type, length and unusable time slot identification. The type is used to identify the information of the unavailable time slot, the length includes the length of the flexible Ethernet unusable time slot sub-object, and the non-use time slot identifier is set to 1 at the corresponding position of the unusable time slot.

FIG. 3 is a schematic structural diagram of an embodiment of a link management method according to an embodiment of the present invention; as shown in FIG. 3, the link management protocol of this embodiment performs port 21 of node 1 (Node 1) and port 31 of Node 2 The case of between unavailable time slots. In this embodiment, it is assumed that the unavailable slot on the port 21 of the Node 1 is the slot 1 and the slot 3, and the unavailable slot on the port 31 of the Node 2 is the slot 14 and the slot 18, then,

First, the Node 1 sends a Link Summary message to the Node 2, and the message carries a FlexE unavailable slot sub-object, indicating that the unavailable slot of the port 21 of the Node 1 is the slot 1 and the slot 3. At this time, the encoding of the FlexE unavailable slot sub-object is to set the slot 1 and slot 3 identification positions to 1, and all other flag bits are set to 0;

Then, after receiving the Link Summary message, the Node 2 determines that the unavailable state of the slot 1 and the slot 3 is acceptable by checking the unavailable slot of the FlexE unavailable slot sub-object, but the available states of the slot 14 and the slot 18 are available. It is unacceptable, so Node 2 sends a Link Summary NAck message to Node 1, which carries the FlexE unavailable slot sub-object, which clearly indicates that the status of some slots needs to be renegotiated, where the sub-object's slot 1 The four identification positions of the time slot 3, the time slot 14, and the time slot 18 are 1, indicating that the four time slots are in an unavailable state.

In this way, the Node 1 receives the four identified locations of the slot 1, the slot 3, the slot 14, and the slot 18 by checking the status of the identifier of the FlexE unavailable slot sub-object in the Link Summary NAck message sent by the Node 2. It is acceptable that the four timeslots are unavailable. At this time, Node 1 sends a second link digest response message, that is, Link Summary Ack information to the Node 2 node, Link. The FlexE unavailable slot sub-object carried in the summary Ack message, in which the four identification positions of the time slot 1, the time slot 3, the time slot 14, and the time slot 18 are 1, thus completing the negotiation of the unavailable slot status at both ends of the link.

4 is a schematic flowchart of a second embodiment of a link management method according to an embodiment of the present invention, as shown in FIG. 4 Show, including:

Step 401: The second node determines link attribute information.

In this embodiment, the link attribute information includes unavailable time slot information on a first link port connected to the first node, the first link port includes a connection port of the second node, and the second node is first Node connection

Step 402: The second node sends link attribute information to the first node.

Before the foregoing second node sends the link attribute information to the first node, the method further includes:

The second node receives the link summary information sent by the first node, the link summary information carries the second attribute information, the second attribute information includes the information of the unavailable time slot of the second link port, and the second link port includes the first The connection port of the node;

The second node determines an unusable time slot of the second link port according to the link summary information.

Further, after the second node sends the link attribute information to the first node, the method further includes:

Further, the first attribute information is carried in a link summary message of the link management protocol;

FIG. 5 is a schematic structural diagram of an embodiment of a link management apparatus according to an embodiment of the present invention. As shown in FIG. 5, the link management apparatus provided by the present invention includes: an obtaining module 51 and a determining module 52. among them,

The obtaining module 51 is configured to obtain link attribute information, where the link attribute information includes unavailable time slot information on the first link port connected to the first node where the obtaining module 51 is located, where the first link port includes the first link port a connection port of a second node connected by a node;

The determining module 52 is configured to determine an unavailable time slot of the first link port on the link according to the obtained link attribute information.

The acquiring module 51 is specifically configured to receive the first link digest response information sent by the second node, where the first link digest response information carries at least the first attribute information, where the first attribute information includes a second connection with the second node. The information of the unavailable time slot of a link port is link attribute information.

Figure 6 is a schematic structural diagram of a second embodiment of a link management apparatus according to an embodiment of the present invention. As shown in Figure 6, the link management apparatus provided by the present invention may further include: a sending module 53;

The sending module 53 is configured to send link summary information to the second node, where the link summary information carries the second attribute information, where the second attribute information includes an unavailable time slot of the second link port connected to the first node where the first node is located. Information, the second link port includes a connection port of the first node where it is located.

Further, the sending module 53 is further configured to send the second link digest response information to the second node, where the second link digest response information carries the first attribute information and the second attribute information.

Optionally, the first attribute information is carried in a link summary message of the link management protocol;

FIG. 7 is a schematic structural diagram of a third embodiment of a link management apparatus according to an embodiment of the present invention. As shown in FIG. 7, the method includes: a determining module 71 and a sending module 72. among them,

The determining module 71 is configured to determine link attribute information, where the link attribute information includes unavailable time slot information on the first link port connected to the first node, where the first link port includes a connection of the second node where the determining module 71 is located a port, where the second node of the determining module 71 is connected to the first node;

The sending module 72 is configured to send link attribute information to the first node.

Figure 8 is a schematic structural diagram of a fourth embodiment of a link management apparatus according to an embodiment of the present invention. As shown in Figure 8, the link management apparatus provided by the present invention may further include: a receiving module 73;

The receiving module 73 is configured to receive the link summary information sent by the first node, where the link summary information carries the second attribute information, where the second attribute information includes information about the unavailable time slot of the second link port connected to the first node. The second link port includes a connection port of the first node;

The determining module 71 is further configured to determine an unusable time slot of the second link port according to the link summary information.

Further, on the basis of the foregoing embodiment, the receiving module 73 is further configured to receive the second link digest response information sent by the first node, where the second link digest response information carries the first attribute information and the second attribute. information.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The link management method and apparatus provided by the embodiments of the present invention implement the negotiation of the available resources at both ends of the FlexE link between the first node and the second node, thereby improving the data transmission efficiency of the flexible Ethernet.

Claims

A link management method includes:

The first node acquires link attribute information, where the link attribute information includes unavailable time slot information on the first link port connected to the first node, where the first link port includes the second node connected to the first node Connection port

The first node determines an unavailable time slot of the first link port on the link according to the obtained link attribute information.
The link management method according to claim 1, wherein the acquiring, by the first node, the link attribute information comprises:

The first node receives first link digest response information from the second node; wherein the first link digest response information carries at least information including information of an unavailable time slot of the first link port An attribute information.
The link management method according to claim 2, before the first node receives the first link digest response information sent by the second node, the method further includes:

Sending, by the first node, link summary information to the second node, where the link summary information carries the second attribute information, where the second attribute information includes that the second link port connected to the first node is unavailable. Information about the time slot, the two link ports including the connection port of the first node.
The link management method according to claim 3, after the first node obtains the link attribute information, before the first node determines the unavailable time slot of the first link port on the link, the method further includes:

The first node sends a second link digest response information to the second node, where the second link digest response information carries the first attribute information and the second attribute information.
The link management method according to any one of claims 2 to 4, wherein the first attribute information is carried in a link summary message of a link management protocol;

The second attribute information is carried in a link summary message of the link management protocol.
A link management method includes:

The second node determines link attribute information, wherein the link attribute information includes unavailable time slot information on a first link port connected to the first node, where the first link port includes a connection of the second node Connected to the port, the second node is connected to the first node;

The second node transmits the determined link attribute information to the first node.
The link management method according to claim 6, before the sending, by the second node, the link attribute information to the first node, the method further includes:

The second node receives the link summary information sent by the first node, where the link summary information carries the second attribute information, the second attribute information includes the information of the unavailable time slot of the second link port, and the second The link port includes a connection port of the first node;

The second node determines an unavailable time slot of the second link port according to the received link summary information.
The link management method according to claim 7, after the sending, by the second node, the link attribute information to the first node, the method further includes:

The second node receives the second link digest response information sent by the first node, where the second link digest response information carries the first attribute information and the second attribute information.
The link management method according to any one of claims 7-8, wherein the first attribute information is carried in a link summary message of a link management protocol;

The second attribute information is carried in a link summary message of the link management protocol.
A link management device includes:

An acquiring module, configured to obtain link attribute information, where the link attribute information includes unavailable time slot information on a first link port connected to the first node where the first link is located, and the first link port includes a connection port of the second node The second node is connected to the first node;

The determining module is configured to determine an unavailable time slot of the first link port on the link according to the obtained link attribute information.
The link management apparatus according to claim 10, wherein the acquiring module is specifically configured to: receive first link digest response information from the second node, where the first link digest response information carries at least The first attribute information includes information of an unavailable time slot of the first link port.
The link management apparatus according to claim 11, further comprising: a transmitting module configured to Sending link summary information to the second node, where the link summary information carries second attribute information, where the second attribute information includes information of an unavailable time slot of the second link port connected to the first node, The second link port includes a connection port of the first node.
The link management apparatus according to claim 12, wherein the sending module is further configured to: send second link digest response information to the second node, where the second link digest response information carries the first attribute Information and the second attribute information.
The link management apparatus according to any one of claims 11 to 13, wherein the first attribute information is carried in a link summary message of a link management protocol;

The second attribute information is carried in a link summary message of the link management protocol.
A link management device includes:

a determining module, configured to determine link attribute information, where the link attribute information includes unavailable time slot information on a first link port connected to the first node, where the first link port includes a connection port of the second node where the first link port is located The second node is connected to the first node;

And a sending module, configured to send the link attribute information to the first node.
The link management apparatus according to claim 15, further comprising: a receiving module, configured to:

Receiving the link summary information sent by the first node, where the link summary information carries the second attribute information, the second attribute information includes information of the unavailable time slot of the second link port, and the second link port includes the The connection port of the first node;

The determining module is further configured to: determine an unavailable time slot of the second link port according to the link summary information.
The link management apparatus according to claim 15 or 16, wherein the receiving module is further configured to: receive second link digest response information sent by the first node, where the second link digest response information carries the First attribute information and the second attribute information.
The link management apparatus according to any one of claims 16-17, wherein the first attribute information is carried in a link summary message of a link management protocol;

The second attribute information is carried in a link summary message of the link management protocol.
A computer readable storage medium storing computer executable instructions, the computer The executable instruction is used to execute the link management method of any one of rights 1 to 5, and/or the computer executable instructions are used to execute the link management method of any one of rights 6 to 9.