WO2017005050A1 - Method and apparatus for adjusting diameter signaling link, and dra - Google Patents

Abstract

A method and apparatus for adjusting a Diameter signaling link, and a DRA. The method comprises: selecting, when determining that total load of activated Diameter signaling links between a Diameter routing agent (DRA) device and a Diameter node decreases to be less than a first threshold, a preset quantity of Diameter signaling links from the foregoing activated Diameter signaling links as to-be-deactivated signaling links; and performing deactivation on the foregoing to-be-deactivated signaling links between the foregoing DRA device and the Diameter node. The foregoing technical solution can avoid waste of Diameter signaling link resources due to incapability of scale in/out of Diameter signaling links, thereby achieving the effect of avoiding the waste of the Diameter signaling link resources.

Description

Diameter signaling link adjustment method, device and DRA Technical field

This document relates to, but is not limited to, the field of communications, and in particular, to a method, an apparatus, and a DRA for adjusting a Diameter signaling link.

Background technique

In the field of mobile communications, the virtualization of core network elements is a technology that is about to sweep the entire industry. Virtualization is not just for mobile communications, but a common type of Internet technology for all servers.

The essence of network element virtualization is the separation of software and hardware. The hardware in a broad sense includes "Central Processing Unit (CPU)", "Storage", "Bandwidth", "Network Resources", and the like. Through virtualization, hardware resources are “on-demand”, with excellent features such as high reliability, rapid deployment, and green environmental protection.

A virtual machine (virtual machine or virtual machine) is a core concept in virtualization. Each virtual machine can be configured with a certain amount of physical CPU, memory, hard disk, and other resources.

"Flexible scaling" is an important technology for virtualization. Users dynamically adjust the required hardware resources at the granularity of the virtual machine. When the traffic increases, the user applies for one or more new virtual machines, that is, Scale Out; when the traffic is reduced, one or more virtual machines are released, that is, Scale In. The criteria for elastic scaling are based on the most prominent hardware resources, the most common being the virtual CPU load. However, it is not limited to the Diameter Routing Agent (DRA).

The DRA is a Diameter signaling switching device and is a highway for Diameter signaling. Each DRA establishes a signaling connection with many other DRA or Diameter signaling nodes. A maximum of 32 Diameter signaling links can be established between a DRA and each adjacent node. According to the operator's specifications, a total number of adjacent nodes supported by a DRA is 8192, and the total number of signaling links is up to 15000. The operator configures the number of signaling links according to the maximum traffic.

The bandwidth of a single Diameter signaling link is up to 100 megabits/s, and the allocated transceiver buffer consumes a large memory space, and the memory capacity of each virtual machine is always limited. In addition, a fully loaded signaling link consumes a staggering CPU. According to the current CPU processing power, one physical CPU can only handle several full-load signaling links. Therefore, the maximum number of signaling links configured per VM is limited, for example 128. The Diameter signaling link becomes a more prominent scarce hardware resource for DRA network elements. For example, a DRA is configured with 6400 signaling links. When the traffic on all signaling links drops to close to 0, at least 50 virtual machines need to be allocated due to the number of signaling links on a single VM. But the CPU load of each virtual machine is not high.

Since the Diameter signaling link cannot be flexibly stretched, all signaling links need to be activated at any time. The consequence is that if the traffic of the DRA and a neighboring node is low, that is, all the nodes are When the traffic on the signaling link is very low, the relevant signaling link does not make the best use of it, but most of it is wasted, which does not meet the purpose of "on-demand allocation" in virtualization technology; The protruding bottleneck of Scale In. When the traffic is low, although the CPU load of each VM is not large, the VM cannot be elastically contracted because each VM cannot allocate a new signaling link. Therefore, in the related art, there is a problem that the Diameter signaling link resource is wasted due to the inability of the Diameter signaling link to be elastically stretched.

For the problem that the Diameter signaling link resources are wasted due to the inability of the Diameter signaling link to be elastically stretched in the related art, an effective solution has not been proposed yet.

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.

The embodiment of the invention provides a method, a device and a DRA for adjusting a Diameter signaling link, which can avoid waste of Diameter signaling link resources due to the inability of the Diameter signaling link to be flexibly stretched.

According to an aspect of the embodiments of the present invention, a method for adjusting a Diameter signaling link includes: determining that a total load of an activated Diameter signaling link between a Diameter routing proxy DRA device and a Diameter node is reduced to less than At a first threshold, a predetermined number of Diameter signaling links are selected from the activated Diameter signaling links as deactivation signaling a link; deactivating the to-be-deactivated signaling link between the DRA device and the Diameter node.

Optionally, the Diameter node includes: a plurality of Diameter adjacent nodes; wherein selecting a predetermined number of Diameter signaling links from the activated Diameter signaling links includes: selecting the DRA device and the multiple The Diameter signaling link between the first predetermined number of Diameter adjacent nodes in the Diameter adjacent nodes; the method further comprising: the to-be-deactivated letter between the DRA device and the Diameter node After deactivating the link, the first predetermined number of Diameter neighbor nodes are switched from an active state to an inactive state.

Optionally, selecting the activated Diameter signaling link between the DRA device and the first predetermined number of Diameter neighbor nodes of the plurality of Diameter neighbor nodes comprises: determining a number of the plurality of Diameter neighbor nodes Whether a predetermined number of Diameter adjacent nodes have the capability of carrying the total load; if the second predetermined number of Diameter adjacent nodes have the capability of carrying the total load, the plurality of Diameter adjacent nodes are excluded a Diameter adjacent node other than the second predetermined number of Diameter adjacent nodes as the first predetermined number of Diameter adjacent nodes, and selecting an activated Diameter letter between the DRA device and the first predetermined number of Diameter adjacent nodes Let the link.

Optionally, selecting a predetermined number of Diameter signaling links from the activated Diameter signaling links includes: selecting one of the activated Diameter signaling links according to a priority from low to high priority Or multiple Diameter signaling links.

Optionally, the method further includes: when the total load of the activated Diameter signaling link between the DRA device and the Diameter node increases to be greater than a second threshold, between the DRA device and the Diameter node A predetermined number of Diameter signaling links are selected as the to-be-activated signaling link in the configured but not yet activated Diameter signaling link; the to-be-activated letter is between the DRA device and the Diameter node The link is activated, wherein the to-be-activated signaling link is used to carry a predetermined proportion of the load in the total load after being activated.

Optionally, the Diameter node includes: a plurality of Diameter neighbor nodes, wherein a third predetermined number of Diameter neighbor nodes of the plurality of Diameter neighbor nodes are in an active state, the DRA device and the third predetermined number The activated Diameter signaling link exists between the Diameter adjacent nodes, and the fourth predetermined number of the plurality of Diameter adjacent nodes The Diameter adjacency node is in an inactive state, and the configured, but not yet activated, Diameter signaling link exists between the DRA device and the fourth predetermined number of Diameter neighbor nodes; wherein, the DRA device is Selecting a predetermined number of Diameter signaling links from a configured, but not yet activated, Diameter signaling link between the Diameter nodes includes: causing a fifth predetermined number of the fourth predetermined number of Diameter adjacent nodes Diameter adjacency node switches from the non-working state to an active state, and selects one of the configured or not yet activated Diameter signaling links between the DRA device and the fifth predetermined number of Diameter neighbor nodes A plurality of Diameter signaling links are used as the to-be-activated signaling link.

Optionally, selecting one or more Diameter signaling links from the configured, but not yet activated, Diameter signaling links between the DRA device and the fifth predetermined number of Diameter neighbor nodes comprises: prioritizing The highest to lowest order selects one or more Diameter signaling links from the configured, but not yet activated, Diameter signaling links between the DRA device and the fifth predetermined number of Diameter neighbor nodes.

Optionally, before determining that the total load of the activated Diameter signaling link between the Diameter routing agent DRA device and the Diameter node is reduced to be less than a first threshold, the method further includes: between the DRA device and the Diameter node The configured Diameter signaling link sets a priority, wherein the configured Diameter signaling link includes the activated Diameter signaling link.

Optionally, a first predetermined number of Diameter signaling links in the predetermined number of Diameter signaling links that are deactivated are configured between a first virtual machine and the Diameter node in the DRA device, An activated second predetermined number of Diameter signaling links are further configured between the first virtual machine and the Diameter node, wherein the DMA device and the Diameter node are to be deactivated Deactivating the signaling link includes: turning off the first virtual machine, and migrating the second predetermined number of Diameter signaling links to a second virtual machine in the DRA device and the Diameter node So that the activated second predetermined number of Diameter signaling links exist between the second virtual machine and the Diameter node.

According to another aspect of an embodiment of the present invention, there is provided an apparatus for adjusting a Diameter signaling link, comprising: a first selecting module configured to determine an activated Diameter signaling between a Diameter routing proxy DRA device and a Diameter node Selecting a predetermined number of Diameter signaling links from the activated Diameter signaling links when the total load of the link decreases below a first threshold, As a signal link to be deactivated; a deactivation module is arranged to deactivate the to-be-deactivated signaling link between the DRA device and the Diameter node.

Optionally, the Diameter node includes: a plurality of Diameter adjacent nodes; wherein the first selection module includes: a first selecting unit, configured to select the first one of the DRA device and the plurality of Diameter adjacent nodes An activated Diameter signaling link between a predetermined number of Diameter adjacent nodes; wherein the apparatus further comprises a switching module configured to switch the first predetermined number of Diameter adjacency nodes from an active state to an inactive state.

Optionally, the first selecting unit includes: a determining subunit, configured to determine whether a second predetermined number of Diameter adjoining nodes of the plurality of Diameter neighboring nodes have the capability of carrying the total load; and selecting a subunit, Providing, when the second predetermined number of Diameter adjacent nodes have the capability of carrying the total load, using a Diameter adjacent node of the plurality of Diameter adjacent nodes other than the second predetermined number of Diameter adjacent nodes The first predetermined number of Diameter adjacent nodes and selecting an activated Diameter signaling link between the DRA device and the first predetermined number of Diameter neighbor nodes.

Optionally, the first selection module further includes: a second selecting unit, configured to select one or more Diameter signaling from the activated Diameter signaling links in descending order of priority link.

Optionally, the device further includes: a second selecting module, configured to: when the total load of the activated Diameter signaling link between the DRA device and the Diameter node increases to be greater than a second threshold, Determining a predetermined number of Diameter signaling links in the Diameter signaling link configured between the DRA device and the Diameter node, but not yet activated, as a signaling link to be activated; an activation module, configured to The activation signaling link is activated between the DRA device and the Diameter node, wherein the to-be-activated signaling link is used to carry a predetermined proportion of the total load when activated.

Optionally, the Diameter node includes: a plurality of Diameter neighbor nodes, wherein a third predetermined number of Diameter neighbor nodes of the plurality of Diameter neighbor nodes are in an active state, the DRA device and the third predetermined number The activated Diameter signaling link exists between the Diameter adjacent nodes, a fourth predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes are in a non-working state, the DRA device and the fourth predetermined Quantity The configured, but not yet activated, Diameter signaling link exists between the Diameter adjacency nodes; wherein the second selection module comprises: a third selection unit configured to abut the fourth predetermined number of Diameter A fifth predetermined number of Diameter adjacency nodes in the node switch from the non-working state to the active state, and a Diameter configured between the DRA device and the fifth predetermined number of Diameter adjacency nodes but not yet activated One or more Diameter signaling links are selected as the to-be-activated signaling link in the signaling link.

Optionally, the third selecting unit is configured to: a configured but not yet activated Diameter between the DRA device and the fifth predetermined number of Diameter adjacent nodes in descending order of priority One or more Diameter signaling links are selected in the signaling link.

Optionally, the apparatus further includes: a setting module, configured to set a priority to a configured Diameter signaling link between the DRA device and the Diameter node, wherein the configured Diameter signaling chain The path includes the activated Diameter signaling link.

Optionally, a first predetermined number of Diameter signaling links in the predetermined number of Diameter signaling links that are deactivated are configured between a first virtual machine and the Diameter node in the DRA device, An activated second predetermined number of Diameter signaling links are further configured between the first virtual machine and the Diameter node, where the deactivation module includes: a processing unit, configured to close the first virtual And moving the second predetermined number of Diameter signaling links between the second virtual machine in the DRA device and the Diameter node, such that the second virtual machine and the Diameter node There is a second predetermined number of Diameter signaling links that are activated.

According to another aspect of an embodiment of the present invention, there is provided a Diameter Routing Agent DRA, comprising the apparatus of any of the above.

With the embodiment of the present invention, when determining that the total load of the activated Diameter signaling link between the Diameter routing agent DRA device and the Diameter node is reduced to less than a first threshold, from the activated Diameter signaling link Selecting a predetermined number of Diameter signaling links as a signaling link to be deactivated; deactivating the to-be-deactivated signaling link between the DRA device and the Diameter node can avoid the Diameter letter The link cannot be elastically stretched, which causes waste of Diameter signaling link resources, thereby achieving the effect of avoiding waste of Diameter signaling link resources.

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

BRIEF abstract

1 is a flowchart of a method for adjusting a Diameter signaling link according to an embodiment of the present invention;

2 is a structural block diagram of an apparatus for adjusting a Diameter signaling link according to an embodiment of the present invention;

3 is a block diagram showing an optional structure of an adjustment apparatus of a Diameter signaling link according to an embodiment of the present invention;

4 is a structural block diagram of a first selecting unit 32 in an adjusting apparatus of a Diameter signaling link according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a first selection module 22 in an adjustment apparatus of a Diameter signaling link according to an embodiment of the present invention;

6 is a block diagram 1 of an optional structure of an adjustment apparatus for a Diameter signaling link according to an embodiment of the present invention;

FIG. 7 is a structural block diagram of a second selection module 62 in an adjustment apparatus of a Diameter signaling link according to an embodiment of the present invention;

8 is a block diagram 2 of an optional structure of an adjustment apparatus for a Diameter signaling link according to an embodiment of the present invention;

9 is a structural block diagram of a deactivation module 24 in an adjustment apparatus of a Diameter signaling link according to an embodiment of the present invention;

10 is a structural block diagram of a Diameter routing agent DRA according to an embodiment of the present invention;

11 is a schematic diagram of a signaling link configuration of a DRA and a peer node (Peer) according to an embodiment of the present invention;

12 is a schematic diagram of a scale intrusion of a signaling link of a DRA and a peer node (Peer) according to an embodiment of the present invention;

13 is a schematic diagram of a signaling link configuration of a DRA and a set of contiguous PCRFs according to an embodiment of the present invention;

14 is an elastic contraction (Scale In) of a DRA and a contiguous PCRF group according to an embodiment of the present invention. schematic diagram;

15 is a schematic diagram of signaling link, virtual machine, and traffic synchronization according to an embodiment of the present invention;

16 is a flowchart of establishing a signaling link when a DRA network element is started and powers on for the first time according to an embodiment of the present invention;

17 is a flow chart of a signaling link elastic intrusion (Scale In) according to an embodiment of the present invention;

18 is a flowchart of a signaling link elastic extension (Scale Out) according to an embodiment of the present invention;

19 is a flow chart of a server group elastic intrusion (Scale In) according to an embodiment of the present invention;

20 is a flow chart of server group elastic expansion (Scale Out) according to an embodiment of the present invention.

Embodiments of the invention

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In this embodiment, a method for adjusting a Diameter signaling link is provided. FIG. 1 is a flowchart of a method for adjusting a Diameter signaling link according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps. :

Step S102, when determining that the total load of the activated Diameter signaling link between the Diameter routing proxy DRA device and the Diameter node is reduced to less than a first threshold, selecting a predetermined number of Diameters from the activated Diameter signaling links. a signaling link as a signaling link to be deactivated;

Step S104: Deactivate the to-be-deactivated signaling link between the DRA device and the Diameter node.

In the foregoing steps, when it is determined that the total load of the activated Diameter signaling link between the DRA device and the Diameter node is less than the first threshold, the current traffic is low, and it is not necessary to use all activated Diameter signaling links. At this point, the active Diameter signaling link can be appropriately reduced. The number and the reduced Diameter signaling link can perform other services, thereby avoiding the waste of Diameter signaling link resources due to the inability of the Diameter signaling link to flexibly scale, thereby avoiding the Diameter signaling chain. The wasteful effect of road resources.

In an optional embodiment, the Diameter node includes: a plurality of Diameter adjacent nodes; wherein selecting a predetermined number of Diameter signaling links from the activated Diameter signaling links includes: selecting a DRA device and multiple Diameter activating a Diameter signaling link between a first predetermined number of Diameter neighbor nodes in a node; wherein, after deactivating a selected predetermined number of Diameter signaling links between the DRA device and the Diameter node, The method also includes switching a first predetermined number of Diameter adjacency nodes from a working state to a non-working state. Wherein, the selected predetermined number of Diameter signaling links that are subjected to the deactivation operation may be concentrated in the first predetermined number of Diameter adjacent nodes, when the predetermined number of Diameter signaling links selected above are performed. After the deactivation operation, all of the Diameter signaling links in the first predetermined number of Diameter neighbor nodes may have been deactivated, so that the first predetermined number of Diameter neighbor nodes may be switched from the working state to the inactive state; Of course, the above selected predetermined number of Diameter signaling links may also be only a part of the first predetermined number of Diameter adjacent nodes, after the selected predetermined number of Diameter signaling links are subjected to the deactivation operation, There is another portion of the Diameter signaling link in the first predetermined number of Diameter adjacent nodes, in which case the load transfer in another portion of the Diameter signaling link of the first predetermined number of Diameter adjacent nodes may be Go to the Diameter signaling link of the active state in the other Diameter adjacent nodes. When the Diameter signaling link of the active state in the other Diameter neighboring nodes cannot bear the load in the other part of the Diameter signaling link of the first predetermined number of Diameter neighboring nodes, it may be appropriate in other Diameter neighboring nodes. The Diameter signaling link of the active state is added to carry the load.

In an optional embodiment, selecting the activated Diameter signaling link between the foregoing DRA device and the first predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes comprises: determining, in the plurality of Diameter adjacent nodes Whether the second predetermined number of Diameter adjacent nodes have the capability of carrying the total load; if the second predetermined number of Diameter adjacent nodes have the capability of carrying the total load, the second predetermined number of Diameter adjacencies of the plurality of Diameter adjacent nodes a Diameter adjacency node other than the node as the first predetermined number of Diameter adjoining nodes, and selecting a DRA device and a first predetermined number of Diameter adjacent nodes The activated Diameter signaling link.

In an optional embodiment, selecting a predetermined number of Diameter signaling links from the activated Diameter signaling links includes: from the above-described activated Diameter signaling links in descending order of priority Select one or more Diameter signaling links. When a plurality of Diameter signaling links need to be selected, a Diameter signaling link having the lowest priority may be selected, and then a Diameter signaling link having the lowest priority may be selected from the remaining Diameter signaling links. By analogy, it is known to select the number of Diameter signaling links that meet the requirements.

In an optional embodiment, the method further includes: when the total load of the activated Diameter signaling link between the DRA device and the Diameter node is increased to be greater than a second threshold, then the relationship between the DRA device and the Diameter node is A predetermined number of Diameter signaling links are selected as the to-be-activated signaling link in the configured but not yet activated Diameter signaling link; and the to-be-activated signaling link is activated between the DRA device and the Diameter node, The to-be-activated signaling link is used to carry a predetermined proportion of the load in the total load after being activated.

In an optional embodiment, the Diameter node includes: a plurality of Diameter adjacent nodes, wherein a third predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes are in an active state, and the DRA device and the third predetermined number of There is an activated Diameter signaling link between the Diameter neighboring nodes, and a fourth predetermined number of Diameter neighboring nodes among the plurality of Diameter neighboring nodes are in an inactive state, and the DRA device is in a non-operating state between the DRA device and the fourth predetermined number of Diameter adjacent nodes There is a Diameter signaling link that has been configured but not yet activated; wherein a predetermined number of Diameter signaling links are selected from the configured, but not yet activated, Diameter signaling links between the DRA device and the Diameter node. Resetting a fifth predetermined number of Diameter adjacency nodes of the fourth predetermined number of Diameter adjacent nodes from an inactive state to an active state, and configured from the DRA device and the fifth predetermined number of Diameter adjacent nodes, but not yet One or more Diameter signaling links are selected as the to-be-activated signaling links in the activated Diameter signaling link.

In an optional embodiment, selecting one or more Diameter signaling links from the configured, but not yet activated, Diameter signaling links between the DRA device and the fifth predetermined number of Diameter neighbor nodes includes: One or more Diameter signaling links are selected from the configured, but not yet activated, Diameter signaling links between the DRA device and the fifth predetermined number of Diameter neighbor nodes in descending order of priority. Wherein, when multiple Diameter signaling links are selected, The highest priority Diameter signaling link can be selected first, then the highest priority Diameter signaling link is selected from the remaining Diameter signaling links, and so on, until a satisfactory number of Diameter signaling links are selected. .

In an optional embodiment, before determining that the total load of the activated Diameter signaling link between the Diameter routing agent DRA device and the Diameter node is reduced to less than a first threshold, the method further includes: for the DRA device and the Diameter node The configured Diameter signaling link sets a priority, wherein the configured Diameter signaling link includes an activated Diameter signaling link.

In an optional embodiment, the first predetermined number of Diameter signaling links in the deactivated predetermined number of Diameter signaling links are configured between the first virtual machine and the Diameter node in the DRA device, An activated second predetermined number of Diameter signaling links are further configured between the first virtual machine and the Diameter node, wherein deactivating the deactivated signaling link between the DRA device and the Diameter node includes: turning off a first virtual machine, and migrating the second predetermined number of Diameter signaling links between the second virtual machine and the Diameter node in the DRA device such that an activated first exists between the second virtual machine and the Diameter node Two predetermined number of Diameter signaling links.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A 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, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.

In this embodiment, a device for adjusting the Diameter signaling link is further provided, and the device is used to implement the foregoing embodiments and optional embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a group of software and hardware The implementation of the combination is also possible and conceived.

2 is a structural block diagram of an apparatus for adjusting a Diameter signaling link according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes a first selection module 22 and a deactivation module 24. The apparatus will be described below.

The first selection module 22 is configured to, when determining that the total load of the activated Diameter signaling link between the Diameter routing agent DRA device and the Diameter node is reduced to less than a first threshold, from the activated Diameter signaling link Selecting a predetermined number of Diameter signaling links as a signaling link to be deactivated;

The deactivation module 24 is coupled to the first selection module 22 and is configured to deactivate the deactivation signaling link between the DRA device and the Diameter node.

Optionally, the above Diameter node includes: a plurality of Diameter adjacent nodes; wherein, FIG. 3 is an optional structural block diagram of an adjustment device of a Diameter signaling link according to an embodiment of the present invention, as shown in FIG. The module 22 includes a first selection unit 32 that includes, in addition to all of the modules shown in FIG. 2, a switching module 34, which is described below.

The first selecting unit 32 is configured to select an activated Diameter signaling link between the DRA device and the first predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes;

The switching module 34 is coupled to the deactivation module 24 and configured to cause the first predetermined number of Diameter adjacent nodes to switch from the active state to the inactive state.

FIG. 4 is a structural block diagram of a first selecting unit 32 in a adjusting apparatus of a Diameter signaling link according to an embodiment of the present invention. As shown in FIG. 4, the first selecting unit 32 includes a determining subunit 42 and a selecting subunit 44. The first selection unit 32 will be described below.

The determining subunit 42 is configured to determine whether the second predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes have the capability of carrying a total load;

The selecting subunit 44 is connected to the judging subunit 42 and configured to divide the plurality of Diameter adjacent nodes by a second predetermined number of Diameter adjacent nodes when the second predetermined number of Diameter adjacent nodes have the capability of carrying the total load. The outer Diameter adjacency node acts as a first predetermined number of Diameter adjoining nodes and selects an activated Diameter signaling link between the DRA device and the first predetermined number of Diameter neighbor nodes.

FIG. 5 is a structural block diagram of a first selection module 22 in a device for adjusting a Diameter signaling link according to an embodiment of the present invention. As shown in FIG. 5, the first selection module 22 includes a second selection unit 52. The first selection module 22 is described.

The second selection unit 52 is arranged to select one or more Diameter signaling links from the activated Diameter signaling links in descending order of priority.

FIG. 6 is a block diagram of an optional structure of an adjustment apparatus for a Diameter signaling link according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes a second selection module 62 in addition to all the modules shown in FIG. And the activation module 64, wherein the connection relationship between the second selection module 62 and the activation module 64 and the first selection module 22 described above is various, and FIG. 6 is only an example. The apparatus will be described below with reference to FIG.

The second selection module 62 is configured to: when the total load of the activated Diameter signaling link between the DRA device and the Diameter node increases to be greater than a second threshold, configured from the DRA device and the Diameter node, but not yet Selecting a predetermined number of Diameter signaling links in the activated Diameter signaling link as a signaling link to be activated;

The activation module 64 is connected to the second selection module 62 and the first selection module 22, and is configured to activate the activation signaling link between the DRA device and the Diameter node, wherein the to-be activated signaling link is activated. It is then used to carry a predetermined proportion of the load in the total load.

Optionally, the Diameter node includes: a plurality of Diameter neighbor nodes, wherein a third predetermined number of Diameter neighbor nodes of the plurality of Diameter neighbor nodes are in an active state, and the DRA device is adjacent to a third predetermined number of Diameter neighbor nodes. There is an activated Diameter signaling link, a fourth predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes are in an inactive state, and there is a configured but between the DRA device and the fourth predetermined number of Diameter adjacent nodes. Figure 7 is a block diagram showing the structure of the second selection module 62 in the adjustment device of the Diameter signaling link according to the embodiment of the present invention. As shown in FIG. 7, the second selection module 62 includes The third selection unit 72 will be described below with respect to the second selection module 62.

The third selecting unit 72 is configured to switch a fifth predetermined number of Diameter adjacent nodes of the fourth predetermined number of Diameter adjacent nodes from the non-working state to the working state, and from the DRA device and the fifth predetermined number of Diameter adjacent nodes Between, but not yet activated One or more Diameter signaling links are selected as the to-be-activated signaling links in the Diameter signaling link.

Optionally, the foregoing third selecting unit 72 is configured to: a Diameter signaling link configured between the DRA device and the fifth predetermined number of Diameter adjacent nodes in order from the highest to the lowest priority, but not yet activated. Select one or more Diameter signaling links.

FIG. 8 is a block diagram showing an optional structure of a device for adjusting a Diameter signaling link according to an embodiment of the present invention. As shown in FIG. 8, the device includes a setting module 82, in addition to all the modules shown in FIG. The device will be described.

The setting module 82 is connected to the first selection module 22, and is configured to set a priority for the configured Diameter signaling link between the DRA device and the Diameter node, wherein the configured Diameter signaling link includes the activated Diameter signaling link.

Optionally, the first predetermined number of Diameter signaling links in the deactivated predetermined number of Diameter signaling links are configured between the first virtual machine and the Diameter node in the DRA device, in the first virtual machine The second predetermined number of Diameter signaling links that are activated are also configured between the Diameter nodes. FIG. 9 is a structural block diagram of the deactivation module 24 in the adjusting device of the Diameter signaling link according to the embodiment of the present invention, as shown in FIG. 9. As shown, the deactivation module 24 includes a processing unit 92, which is described below.

The processing unit 92 is configured to shut down the first virtual machine, and migrate the second predetermined number of Diameter signaling links to the second virtual machine in the DRA device and the Diameter node, so that the second virtual machine and the Diameter There is a second predetermined number of Diameter signaling links that have been activated between the nodes.

FIG. 10 is a structural block diagram of a Diameter routing agent DRA according to an embodiment of the present invention. As shown in FIG. 10, the DRA 102 includes the adjustment device 104 of the Diameter signaling link of any of the above.

The above embodiments can effectively solve the problem in the related art. In the DRA network element, the operator plans a larger number of signaling links according to traffic peak traffic and other factors, but because of the signaling link. The elastic scalability cannot be performed, which causes a large amount of waste of signaling link resources during normal traffic or low traffic, and seriously affects the elastic expansion and contraction of virtual machines, so that the green environmental protection capability brought by virtualization is invalid to some extent. problem.

An embodiment of the present invention further provides an implementation method for elastic contraction of a Diameter signaling link. The method will be described below.

The operator configures the DRA to the signaling link of other Diameter peer nodes (Peers). For neighboring nodes that support elastic scaling, configure the maximum number of signaling links (for example, 32) and the minimum number of signaling links (for example, 2). Configure which links are not flexibly stretched and which are used for elastic scaling. For the elastically scalable signaling link, set the elastic scaling priority of each signaling link. And set which signaling links are initially established after power-on.

When a Diameter signaling link is established, a capability negotiation (Capabilities Exchange-Request (CER) and Capabilities Exchange-Answer (CEA)) is required. In the capability negotiation message, a letter is added. Negotiation of link elastic scaling attributes (ie, "elastic scaling type" and "elastic scaling priority"). The elastic scaling class is: "Scale Fix", "Scale Enable". The link with the elastic scaling type is not flexibly scalable. You need to set the elastic scaling priority. The link with the elastic scalability is Scale Enable. You can flexibly flex the link. ;

Scale In): When the total link load of a peer (Peer) drops and some or all of the signaling links need to be closed, the flexibility is selected according to the elastic scaling priority of the signaling link. The signaling link with the lowest scaling priority initiates a broken link, that is, a DPR (Disconnect-Peer-Request) message is sent. The reason for the disconnection is indicated by setting the enumeration value of "Disconnect-Cause AVP" in the DPR message to "SCALE_IN(3)". For a link down situation caused by elastic contraction, the two NEs cannot generate a serious alarm and do not immediately reestablish the link.

Scale Out: When the total link load of a peer (Peer) increases and the signaling link needs to be added, the priority of the signaling link is selected according to the elastic scaling priority of the signaling link. The link initiates the reconstruction of the signaling link.

11 is a schematic diagram of a signaling link configuration of a DRA and a peer node (Peer) according to an embodiment of the present invention (does not support the dual impact of signaling link elastic scaling). The number of signaling links between the DRA and the adjacent peer node is According to the maximum traffic, when the 4G user volume is large, if the full configuration is performed, some adjacent peer nodes can configure up to 32 signaling links. When the traffic volume is low (for example, the load per link is a%), the utilization of the signaling link bandwidth is very low, resulting in waste of resources; DRA needs to apply for more virtual machines and cannot continue to scale in (Scale In).

FIG. 12 is a schematic diagram of elastic contraction of a signaling link between a DRA and a peer node (supporting the dual benefits of elastic extension of a signaling link) according to an embodiment of the present invention. For the case of Figure 10, if the elastic scaling of the signaling link is supported, and the scalability is performed when the traffic volume is low (for example, the load per link is a%), then each peer node only Two signaling links are required for activation (for example, the load per link is 16xa%); at the same time, this DRA only needs to apply for fewer VM virtual machines.

13 is a schematic diagram of a signaling link configuration of a DRA and a group of contiguous PCRFs according to an embodiment of the present invention (the elastic link of the signaling link is not supported), and it is assumed that the DRA is connected to 16 PCRFs, and the functions of each PCRF are completely equal. Price, each adjacent PCRF is configured with 32 signaling links. When the traffic is extremely low (for example, the load per link is b%), signaling link resources, and even many PCRF node resources are wasted; at the same time, the DRA also needs to apply for more virtual machines (VMs). .

14 is a schematic diagram of elastic indentation of a DRA and a contiguous PCRF group according to an embodiment of the present invention. For the case of FIG. 13, if the elastic scaling of the signaling link is supported, only two PCRFs need to be activated, and each PCRF is activated. Two signaling links are available, each signaling link has a load of 128Xb% (assuming 128xb% is less than 0.5), other PCRFs sleep, and only link reconstruction is monitored; at the same time, this DRA only needs to apply for fewer VMs. virtual machine.

FIG. 15 is a schematic diagram of signaling link, virtual machine, and traffic synchronization according to an embodiment of the present invention. The DRA network element needs to follow the following principles to implement synchronization of signaling links, virtual machines, and traffic:

Virtual DRA network elements need to apply for the least virtual machine (VM) and signaling links even if there is no load or only very low load. These virtual machines and signaling links are never released or elastically stretched.

When there is low traffic and need to apply for virtual machine and signaling link, the corresponding high priority, the probability of applying for use is high throughout the operation.

When there is medium traffic and a virtual machine and signaling link are required, the corresponding priority is medium priority.

When there is a large amount of traffic and the VM and signaling link need to be applied, the corresponding low priority. In the whole operation, the probability of applying for use is very low, and only the traffic peak needs to be applied. Once the peak period expires, Immediately released.

Since the signaling link and the VM and the traffic change are consistent and linear, therefore, Either apply at the same time or release at the same time to minimize the migration of signaling links between VMs.

The CER/CEA capability negotiation message adds the elastic scalability attribute AVP.

The CER (Capabilities-Exchange-Request) message is defined as follows:

<CER>::=<Diameter Header:257,REQ>

...

[Scale-attribute] (new)

The CEA message is defined as follows:

<CEA>::=<Diameter Header:257>

...

[Scale-attribute] (new)

Scale-attribute AVP definition:

AVP Code: 8000, Vendor-Id: 3902, group type.

Scale-attribute::=<AVP Header:8000>

{Scale-type}

[Scale-priority]

*[AVP]

Scale-type AVP definition:

AVP Code: 8001, Vendor-Id: 3902, Type: Enumeration.

Enumeration value:

SCALE_FIX (corresponding to S_F in the figure) 0

SCALE_ENABLE (corresponding to S_E in the figure) 1

Scale-type AVP definition:

AVP Code: 8002, Vendor-Id: 3902, type: Unsigned32.

Value range: (0, 31)

0: The highest priority (the highest priority is established for this link, and the lowest priority is for the link)

1: the highest priority

...

31: The lowest priority (the highest priority is to release the link, and the lowest priority is to establish the link)

DPR (Disconnect-Peer-Request) disconnects the link request message. The reason why the AVP increases the "elastic contraction cause" enumeration value.

<DPR>::=<Diameter Header:282,REQ>

{Origin-Host}

{Origin-Realm}

{Disconnect-Cause}

*[AVP]

AVP Disconnect-Cause AVP definition:

AVP Code: 273, Type: Enumeration.

Enumeration value:

REBOOTING 0

BUSY 1

DO_NOT_WANT_TO_TALK_TO_YOU 2

SCALE_IN 3 (new, elastic contraction reason)

For the first time of establishing a link, the negotiation process of elastic scalability attributes can be seen in Figure 16: Figure 16 is The DRA network element is activated according to the embodiment of the present invention, and the flow chart of the signaling link establishment at the time of first power-on is started. The DRA network element is started, and the SCTP bearer is established first when the power is first powered on, and then the CER/CEA capability negotiation is performed. The capability negotiation negotiates the elastic scaling attributes (elastic scaling type and elastic scaling priority) to facilitate subsequent elastic contraction.

The process includes the following steps:

Step S1602: The DRA network element is started for the first time, and the operator determines the total number of signaling links according to, but not limited to, the following factors:

In the past year, during the peak traffic hours (such as the Spring Festival, Christmas, Mid-Autumn Festival), the maximum traffic volume of the DRA;

If the DRA is a dual-plane network, you need to consider disaster recovery. The temporary signaling caused by the partner DRA is doubled.

The growth rate of 4G business and other related businesses in the near or medium term, such as annual growth of 50%;

The necessary margin.

Determination of link priority: For the same bearer signaling link (for example, both SCTP or TCP), each link is randomly assigned a different priority; if the bearers are different, and SCTP or In TCP, each link is assigned a priority according to the bearer classification, and all SCTP links have higher priority than TCP, or vice versa.

Determination of the correspondence between the link and the virtual machine: See Figure 15 for consistency.

Step S1604: The first establishment of the link, the DRA selects a signaling link with a link type of SCALE_FIX and a link type of SCALE_ENABLE as the highest priority of the elastic extension according to the configuration (for example, the number of activated links).

For a link, the SCTP bearer is established first, and then the CER/CEA capability negotiation is performed. The capability negotiation has elastic scaling attributes (for example, Scale_Type is ‘SCALE_FIX’; or Scale_Type is ‘SCALE_ENABLE, and the elastic scaling priority is 0);

Step S1606: After receiving the message, the peer node (PEER) returns to the CEA, and the negotiation result of the elastic scaling attribute (for example, Scale_Type is 'SCALE_FIX'; or Scale_Type is 'SCALE_ENABLE and the elastic scaling priority is 0), DRA Recorded after receiving.

If the CEA does not return the negotiation result of the elastic scaling attribute, the signaling link cannot be played. Scaling (Scale In).

The Scale In process of the signaling link can be seen in FIG. 17, which is a flowchart of the signaling link elastic intrusion (Scale In) according to an embodiment of the present invention, when a peer node (Peer) The total link load is decreased. When some or all of the signaling links need to be closed, the signaling link with the lowest priority is selected to initiate the disconnection according to the elastic scaling priority of the signaling link, that is, the DPR message is sent. The reason for the disconnection is indicated by the enumeration value of "Disconnect-Cause AVP" in the message "SCALE_IN 3". For a link that is closed due to elastic contraction, the two NEs cannot generate a serious alarm and do not immediately reestablish the link.

The process includes the following steps:

Step S1702: When a total link load of a peer node (Peer) decreases and some or all signaling links need to be closed, the DRA decides to perform a signaling chain for a peer node (Peer) through a local virtualization algorithm. In the case of Scale In, the elastic negotiation is successful and the elastic scaling priority is among the lowest links. The VM virtual machine is used to determine an active link. The DPR is sent to the peer to disconnect the link. The reason is "SCALE_IN". The node does not perform serious alarms and does not perform link reestablishment immediately.

Links of type 'SCALE_FIX' must not be elastically released.

Step S1704: After receiving the message, the peer node (PEER) returns to the DPA. No serious alarms are issued.

The Scale Out process of the signaling link is shown in FIG. 18. FIG. 18 is a flowchart of the elastic extension of the signaling link according to an embodiment of the present invention. When the total link load of the peer node (Peer) increases, it is required. When the signaling link is added, the link with the highest priority is selected to initiate the reconstruction of the signaling link according to the elastic scaling priority of the signaling link: the SCTP bearer is established first, and then the CER/CEA capability negotiation is performed. The capability negotiation negotiates the elastic scaling attributes (elastic scaling type and elastic scaling priority) to facilitate subsequent elastic contraction.

The process includes the following steps:

Step S1802: When the total link load of a peer node (Peer) rises, signaling needs to be added. On the link, when the DRA determines the scale out of the signaling link for a peer node through the local virtualization algorithm, the inactive link with the highest elastic priority is selected to establish the SCTP bearer. CER/CEA capacity negotiation. Capability negotiation has elastic scaling attributes (for example, Scale_Type is ‘SCALE_ENABLE; elasticity priority is 3);

Step S1804: After receiving the message, the peer node (PEER) returns to the CEA, and includes the negotiation result of the elastic extension attribute, and the DRA receives the record after receiving the message. If the CEA does not return the negotiation result of the elastic scaling attribute, the signaling link cannot perform Scale In.

FIG. 19 is a flowchart of elastic contraction of a server group according to an embodiment of the present invention. When the total load of a server group decreases and some servers need to be closed, the unconfigured elastic expansion is selected. A server of type 'SCALE_FIX'. A DPR message is sent on each link. The reason for the disconnection is indicated by the "SCALE_IN 3" enumeration value of "Disconnect-Cause AVP" in the message. The NEs on both sides cannot generate serious alarms and do not immediately reestablish links.

The process includes:

Determine the elastic link attribute of the server link in the server group: Select two (or more) servers and configure two (or more) links with the elastic extension type of 'SCALE_FIX'. This type of server will not be elastically stretched. , but the link supports elastic scaling.

For other servers, configure a link with the elastic scalability type of ‘SCALE_FIX’. This type of server supports elastic scaling and the link also supports elastic scaling.

Step S1902: When the total load of a certain server group decreases and some servers need to be closed, the server whose elastic scaling type is ‘SCALE_FIX’ is not selected. On the A-link of the server, the DPR is sent to the peer to disconnect the link. The reason is "SCALE_IN". The node does not perform serious alarms and does not perform link re-establishment immediately.

Step S1904: After receiving the message, the peer node (PEER) returns to the DPA. No serious alarms are issued.

Step S1906: On the B link of the server, the DPR is sent to the peer to disconnect the link, and the reason is "SCALE_IN". The node does not perform a serious alarm and does not immediately perform link reestablishment.

The disconnection process of the A/B link can be performed in parallel.

Step S1908: After receiving the message, the peer node returns to the DPA. No serious alarms are issued.

After all the links on the server are elastically released, the server is Scale In.

FIG. 20 is a flowchart of a server group elastic extension according to an embodiment of the present invention. When a total load of a server group rises and a part of servers need to be activated, Select a server that does not have an elastic scaling type of 'SCALE_FIX'. Select to activate m links. The SCTP bearer setup is performed first, and then the CER/CEA capability negotiation is performed. The capability negotiation negotiates the elastic scaling attributes (elastic scaling type and elastic scaling priority) to facilitate subsequent elastic contraction.

The process includes the following steps:

Step S2002: When the total load of a certain server group rises and a part of the server needs to be activated, the server with the elastic extension type ‘SCALE_FIX’ is not configured. Select to activate 2 (or more, the same number of links as other services) link. On the A link on the server, SCTP bearer setup is performed, and then CER/CEA capability negotiation is performed. Capability negotiation has elastic scaling attributes (for example, Scale_Type is ‘SCALE_ENABLE; elasticity priority is 0);

Step S2004: After receiving the message, the peer node returns to the CEA, and the negotiation result of the elastic scalability attribute is recorded after the DRA receives the message.

Step S2006: On the B link, perform SCTP bearer establishment, and then perform CER/CEA capability negotiation. Capability negotiation has elastic scaling attributes (for example, Scale_Type is ‘SCALE_ENABLE; elasticity priority is 1);

The establishment process of the A/B link can be performed in parallel.

Step S2008: After receiving the message, the peer node returns to the CEA, and the negotiation result of the elastic scalability attribute is recorded after the DRA receives the message.

After the server is scaled out, you can take on the business.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; Alternatively, the above modules are located in multiple processors.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. When it is determined that the total load of the activated Diameter signaling link between the Diameter routing proxy DRA device and the Diameter node is reduced to less than a first threshold, selecting a predetermined number of Diameters from the activated Diameter signaling links. a signaling link as a signaling link to be deactivated;

S2: Deactivate the signaling link to be deactivated between the DRA device and the Diameter node.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in the embodiment, the processor performs steps S1-S3 according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

The following beneficial effects can be achieved by the above embodiments:

Supports elastic scaling based on Diameter signaling links. The Diameter signaling link is allocated on demand, and the ability to utilize a single Diameter signaling link can save the resource overhead of the Diameter signaling link for most of the time.

Preventing the Diameter signaling link from becoming a factor affecting the VM's elastic scaling function is even a short board, enabling the VM to be Scale In without being affected.

Reduce the migration probability of the Diameter signaling link. When the Diameter node reasonably arranges the distribution on the VM according to the elastic scaling priority of the signaling link, the probability of migration of the Diameter signaling link between the VMs in the network element can be significantly reduced, thereby avoiding unnecessary internal loss.

Support for server group-based elastic scaling. DRA may connect to some groups of servers, such as connecting a group of PCRFs, a group of OCSs, a group of HLRs, and any one of the services can select any one of the groups. Servers. When traffic is low, it takes only one or two servers to provide services in these groups. Other servers can disconnect all the links and sleep. The embodiments of the present invention can be carried out as long as they are supported by two or two Diameter nodes, and thus are easy to implement.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only an alternative 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 foregoing technical solution can avoid the waste of Diameter signaling link resources caused by the inability of the Diameter signaling link to be elastically stretched, thereby achieving the effect of avoiding waste of Diameter signaling link resources.

Claims (19)

1. A method for adjusting a Diameter signaling link includes:

   Determining a predetermined number of Diameter signaling from the activated Diameter signaling links when it is determined that the total load of the activated Diameter signaling link between the Diameter routing agent DRA device and the Diameter node is reduced to less than a first threshold The link acts as a signaling link to be deactivated;

   Deactivating the to-be-deactivated signaling link between the DRA device and the Diameter node.
2. The method of claim 1, wherein the Diameter node comprises: a plurality of Diameter adjacency nodes;

   Selecting a predetermined number of Diameter signaling links from the activated Diameter signaling links includes: selecting that the DRA device is activated between a first predetermined number of Diameter neighbor nodes of the plurality of Diameter neighbor nodes Diameter signaling link;

   The method further includes: after deactivating the to-be-deactivated signaling link between the DRA device and the Diameter node, switching the first predetermined number of Diameter neighbor nodes from a working state to a non-deactivation Working status.
3. The method of claim 2, wherein selecting an activated Diameter signaling link between the DRA device and a first predetermined number of Diameter neighbor nodes of the plurality of Diameter neighbor nodes comprises:

   Determining whether a second predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes have the capability of carrying the total load;

   If the second predetermined number of Diameter adjacent nodes have the capability of carrying the total load, the Diameter adjacent nodes of the plurality of Diameter adjacent nodes except the second predetermined number of Diameter adjacent nodes are used as the A first predetermined number of Diameter adjacent nodes and selecting an activated Diameter signaling link between the DRA device and the first predetermined number of Diameter neighbor nodes.
4. The method of any one of claims 1 to 3, wherein selecting a predetermined number of Diameter signaling links from the activated Diameter signaling links comprises:

   Select one of the activated Diameter signaling links in descending order of priority Strip or multiple Diameter signaling links.
5. The method of claim 1 further comprising:

   And when the total load of the activated Diameter signaling link between the DRA device and the Diameter node is increased to be greater than a second threshold, configured from the DRA device and the Diameter node but not yet activated Selecting a predetermined number of Diameter signaling links in the Diameter signaling link as a signaling link to be activated;

   Activating the to-be-activated signaling link between the DRA device and the Diameter node, wherein the to-be-activated signaling link is used to carry a predetermined proportion of the total load after being activated load.
6. The method of claim 5, wherein the Diameter node comprises: a plurality of Diameter adjacency nodes, wherein a third predetermined number of Diameter adjoining nodes of the plurality of Diameter adjoining nodes are in an active state, the DRA device The activated Diameter signaling link exists between the third predetermined number of Diameter adjacent nodes, and a fourth predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes are in an inactive state, the DRA The configured, but not yet activated, Diameter signaling link exists between the device and the fourth predetermined number of Diameter adjacent nodes;

   Wherein, selecting a predetermined number of Diameter signaling links from the configured, but not yet activated, Diameter signaling links between the DRA device and the Diameter node comprises: causing the fourth predetermined number of Diameter adjacent nodes The fifth predetermined number of Diameter adjacency nodes in the switch from the non-working state to the active state, and a Diameter letter configured between the DRA device and the fifth predetermined number of Diameter adjacent nodes but not yet activated One or more Diameter signaling links are selected in the link as the to-be-activated signaling link.
7. The method of claim 6 wherein one or more Diameter letters are selected from a configured, but not yet activated, Diameter signaling link between said DRA device and said fifth predetermined number of Diameter adjacent nodes Let the link include:

   Selecting one or more Diameter signaling chains from the configured, but not yet activated, Diameter signaling links between the DRA device and the fifth predetermined number of Diameter neighbor nodes in descending order of priority road.
8. The method of any one of claims 1 to 3, 5 to 6, further comprising:

   Determining a configured Diameter signaling chain between the DRA device and the Diameter node before determining that the total load of the activated Diameter signaling link between the Diameter routing agent DRA device and the Diameter node is reduced below a first threshold The path sets a priority, wherein the configured Diameter signaling link includes the activated Diameter signaling link.
9. The method of any one of claims 1 to 3, 5 to 6, wherein a first predetermined number of Diameter signaling links of said predetermined number of Diameter signaling links deactivated are configured Between the first virtual machine and the Diameter node in the DRA, a second predetermined number of Diameter signaling links that are activated are further configured between the first virtual machine and the Diameter node, where

   Deactivating the to-be-deactivated signaling link between the DRA device and the Diameter node includes: turning off the first virtual machine, and migrating the second predetermined number of Diameter signaling links Between the second virtual machine in the DRA device and the Diameter node, such that the activated second predetermined number of Diameter signaling links exist between the second virtual machine and the Diameter node .
10. An adjustment device for a Diameter signaling link, comprising:

    a first selection module configured to determine from the activated Diameter signaling link when it is determined that a total load of the activated Diameter signaling link between the Diameter routing agent DRA device and the Diameter node is reduced to less than a first threshold Selecting a predetermined number of Diameter signaling links as a signaling link to be deactivated;

    And deactivating the module, configured to deactivate the to-be-deactivated signaling link between the DRA device and the Diameter node.
11. The apparatus of claim 10, wherein the Diameter node comprises: a plurality of Diameter adjacency nodes;

    The first selection module includes: a first selection unit configured to select an activated Diameter signaling link between the DRA device and a first predetermined number of Diameter neighbor nodes of the plurality of Diameter adjacent nodes;

    The apparatus also includes a switching module configured to abut the first predetermined number of Diameter The node switches from the working state to the non-working state.
12. The apparatus of claim 11 wherein said first selection unit comprises:

    a determining subunit, configured to determine whether a second predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes have the capability of carrying the total load;

    Selecting a subunit, configured to: when the second predetermined number of Diameter adjacent nodes have the capability of carrying the total load, except the second predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes The Diameter adjacency node acts as the first predetermined number of Diameter neighbor nodes and selects an activated Diameter signaling link between the DRA device and the first predetermined number of Diameter neighbor nodes.
13. The apparatus according to any one of claims 11 to 12, the first selection module further comprising: a second selection unit arranged to be from the activated Diameter signaling chain in descending order of priority Select one or more Diameter signaling links in the path.
14. The apparatus of claim 10 further comprising:

    a second selection module, configured to: when the total load of the activated Diameter signaling link between the DRA device and the Diameter node increases to be greater than a second threshold, between the DRA device and the Diameter node A predetermined number of Diameter signaling links are selected as the to-be-activated signaling links in the configured, but not yet activated, Diameter signaling links;

    An activation module configured to activate an activation signaling link between the DRA device and the Diameter node, wherein the to-be-activated signaling link is used to carry a reservation in the total load after being activated The proportion of the load.
15. The apparatus of claim 14, wherein the Diameter node comprises: a plurality of Diameter adjacency nodes, wherein a third predetermined number of Diameter adjoining nodes of the plurality of Diameter adjoining nodes are in an active state, the DRA device The activated Diameter signaling link exists between the third predetermined number of Diameter adjacent nodes, and a fourth predetermined number of Diameter adjacent nodes of the plurality of Diameter adjacent nodes are in an inactive state, the DRA The configured, but not yet activated, Diameter signaling link exists between the device and the fourth predetermined number of Diameter adjacent nodes;

    The second selection module includes: a third selection unit, configured to enable the fourth predetermined number The fifth predetermined number of Diameter neighbor nodes in the Diameter adjacency node switch from the non-working state to the active state, and are configured between the DRA device and the fifth predetermined number of Diameter adjacent nodes, but One or more Diameter signaling links are selected as the to-be-activated signaling link in the Diameter signaling link that has not been activated.
16. The device according to claim 15, wherein

    The third selection unit is configured to set, but not yet activated, a Diameter signaling link between the DRA device and the fifth predetermined number of Diameter adjacent nodes in order of priority from highest to lowest Select one or more Diameter signaling links.
17. The apparatus according to any one of claims 10 to 12, 14 to 15, further comprising:

    a setting module configured to set a priority for a configured Diameter signaling link between the DRA device and the Diameter node, wherein the configured Diameter signaling link includes the activated Diameter signaling link.
18. The apparatus of any one of claims 10 to 12, 14 to 15, wherein a first predetermined number of Diameter signaling links of said predetermined number of Diameter signaling links deactivated are configured Between the first virtual machine and the Diameter node in the DRA, a second predetermined number of Diameter signaling links that are activated are further configured between the first virtual machine and the Diameter node, where

    The deactivation module includes: a processing unit configured to shut down the first virtual machine, and migrate the second predetermined number of Diameter signaling links to a second virtual machine in the DRA device and the Diameter Between the nodes, the second predetermined number of Diameter signaling links that are activated are present between the second virtual machine and the Diameter node.
19. A Diameter routing agent DRA comprising the apparatus of any one of claims 10 to 18.

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