CN108880971B - Capacity expansion method and device for virtual broadband remote access server vBRAS resource pool - Google Patents

Capacity expansion method and device for virtual broadband remote access server vBRAS resource pool Download PDF

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CN108880971B
CN108880971B CN201810542122.1A CN201810542122A CN108880971B CN 108880971 B CN108880971 B CN 108880971B CN 201810542122 A CN201810542122 A CN 201810542122A CN 108880971 B CN108880971 B CN 108880971B
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vbras
parameter information
sampling
vxlan
sampling parameter
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CN108880971A (en
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许露
刘颖
孙凯
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Hangzhou H3C Technologies Co Ltd
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Hangzhou H3C Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4637—Interconnected ring systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/825—Involving tunnels, e.g. MPLS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/70—Virtual switches

Abstract

The utility model relates to a virtual broadband remote access server vBRAS resource pool's dilatation method and device, including: when the first vBRAS meeting the capacity expansion condition is monitored, acquiring hardware parameters of the first vBRAS; sending a second vBRAS creation request to a Virtual Infrastructure Manager (VIM) so that the VIM creates a second vBRAS according to the hardware parameters of the first vBRAS carried in the second vBRAS creation request; after the second vBRAS is successfully established, acquiring a virtual switching instance VSI and a VXLAN ID which a first VXLAN tunnel established by the first vBRAS and a switch belongs to; a second tunnel creation instruction is sent to the switch to cause the switch to establish a second VXLAN tunnel between the switch and a second vbrs. According to the capacity expansion method and device for the vBRAS resource pool of the virtual broadband remote access server, the automatic capacity expansion of the vBRAS resource pool can be realized.

Description

Capacity expansion method and device for virtual broadband remote access server vBRAS resource pool
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for expanding a virtual broadband remote access server vbars resource pool.
Background
A vbars (Virtual Broadband Remote Access Server) is a virtualization of a BRAS (Broadband Remote Access Server). The network service POP (point of presence) located in the metropolitan area network of the operator is an entrance for realizing various services for the user, and is used as a first hop gateway for accessing the user to the network, and the vBRAS maintains a large number of service attributes, configurations and states related to the user, and comprises the following steps: user IP address, PPPoE (Point-to-Point Protocol over Ethernet based on Ethernet)/IPoE session, Qos (Quality of Service) and ACL attribute, etc., these table entries and attributes directly relate to the security and Quality of Service of user Service, and the key position of vBRAS in metropolitan area network is self-evident.
However, the vbars and the VXLAN ID have a mapping relationship, that is, a data packet with the same VXLAN ID can only be sent to the corresponding vbars for processing. If the load of the vbars is too high and there is no ability to process data packets, the service of the user may be affected.
Disclosure of Invention
In view of this, the present disclosure provides a method and an apparatus for expanding a vbrs resource pool of a virtual broadband remote access server, which can implement automatic expansion of the vbrs resource pool.
According to one aspect of the present disclosure, a capacity expansion method for a vbars resource pool of a virtual broadband remote access server is provided, which is applied to a service orchestrator, and includes:
when monitoring that a first vBRAS meeting capacity expansion conditions exists, acquiring hardware parameters of the first vBRAS;
sending a second vBRAS creation request to a Virtual Infrastructure Manager (VIM) so that the VIM creates a second vBRAS according to the hardware parameters of the first vBRAS carried in the second vBRAS creation request;
after the second vBRAS is successfully established, acquiring a virtual switching instance VSI and a VXLAN ID which a first VXLAN tunnel established by the first vBRAS and a switch belongs to;
sending a second tunnel creation instruction to the switch so that the switch establishes a second VXLAN tunnel between the switch and the second vBRAS;
wherein the second tunnel creation instruction includes: a destination IP address of the second VXLAN tunnel, a VSI to which the second VXLAN tunnel belongs, a VXLAN ID of the second VXLAN tunnel; the destination IP address of the second VXLAN tunnel is the IP address of the second vBRAS, the VSI to which the second VXLAN tunnel belongs is the same as the VSI to which the first VXLAN tunnel belongs, and the VXLAN ID of the second VXLAN tunnel is the same as the VXLAN ID of the first VXLAN tunnel.
According to another aspect of the present disclosure, there is provided a capacity expansion device for a vbars resource pool, which is applied to a service orchestrator, and includes:
the first acquisition module is used for acquiring hardware parameters of a first vBRAS when the first vBRAS meeting capacity expansion conditions is monitored;
the first sending module is used for sending a second vBRAS creation request to the VIM so that the VIM creates a second vBRAS according to the hardware parameters of the first vBRAS carried in the second vBRAS creation request;
a second obtaining module, configured to obtain, after the second vbrs is successfully created, a virtual switch instance VSI and a VXLAN ID to which a first VXLAN tunnel established between the first vbrs and the switch belongs;
a second sending module, configured to send a second tunnel creation instruction to the switch, so that the switch establishes a second VXLAN tunnel between the switch and the second vbrs;
wherein the second tunnel creation instruction includes: a destination IP address of the second VXLAN tunnel, a VSI to which the second VXLAN tunnel belongs, a VXLAN ID of the second VXLAN tunnel; the destination IP address of the second VXLAN tunnel is the IP address of the second vBRAS, the VSI to which the second VXLAN tunnel belongs is the same as the VSI to which the first VXLAN tunnel belongs, and the VXLAN ID of the second VXLAN tunnel is the same as the VXLAN ID of the first VXLAN tunnel.
According to another aspect of the present invention, there is provided a capacity expansion apparatus for a vbars resource pool, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.
According to another aspect of the present invention, there is provided a non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-described method.
Therefore, when the service orchestrator monitors that the first vBRAS meeting the capacity expansion condition exists, the service orchestrator can acquire the hardware parameter of the first vBRAS and create the second vBRAS according to the hardware parameter of the first vBRAS. And after the creation of the second vBRAS is completed, sending a second tunnel creation instruction to the switch, so that the switch creates a second VXAAN tunnel with the destination address being the IP address of the second vBRAS, wherein the second VXAAN tunnel and the first VXAAN tunnel corresponding to the first vBRAS correspond to the same VXAN ID and are bound under the same VSI. According to the capacity expansion method and device for the vBRAS resource pool of the virtual broadband remote access server, when the first vBRAS meets the capacity expansion condition, the second vBRAS which is consistent with the hardware resource specification of the first vBRAS can be automatically and rapidly established, and the automatic capacity expansion of the vBRAS resource pool can be realized; the load of the first vBRAS can be reduced by carrying out load sharing on the first vBRAS through the second vBRAS, and the problem that the service of a user is influenced due to the fact that the load of the first vBRAS is too high is avoided.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a flowchart of a method for expanding a virtual broadband remote access server vbars resource pool according to an embodiment of the present disclosure;
fig. 2 is a flowchart illustrating a method for expanding a virtual broadband remote access server vbars resource pool according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a method for expanding a virtual broadband remote access server vbars resource pool according to an embodiment of the present disclosure;
fig. 4 shows a schematic networking structure diagram of a vbars resource pool in the embodiment of the present disclosure;
fig. 5 is a flowchart illustrating a method for expanding a virtual broadband remote access server vbars resource pool according to an embodiment of the present disclosure;
fig. 6 is a block diagram illustrating a configuration of a capacity expansion apparatus of a vbars resource pool according to an embodiment of the present disclosure;
fig. 7 is a block diagram illustrating a configuration of a capacity expansion apparatus of a vbars resource pool according to an embodiment of the present disclosure;
fig. 8 is a block diagram illustrating a hardware configuration of a capacity expansion apparatus of a vbars resource pool according to an exemplary embodiment.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 is a flowchart illustrating a method for expanding a virtual broadband remote access server vbars resource pool, which may be applied in a service orchestrator according to an embodiment of the present disclosure. As shown in fig. 1, the method may include the following steps.
Step 101, when monitoring that a first vBRAS meeting capacity expansion conditions exists, acquiring hardware parameters of the first vBRAS;
the service orchestrator may monitor the vbars in the metro network to which it belongs. For example, the service orchestrator may obtain various pieces of sampling parameter information of the first vbrs, and monitor the various pieces of sampling parameter information; or the service orchestrator may receive various pieces of sampling parameter information actively reported by the first vbrs, and monitor the various pieces of sampling parameter information.
The service orchestrator may determine whether the first vbrs satisfies a capacity expansion condition according to each item of sampling parameter information of the first vbrs, where each item of sampling parameter information of the first vbrs is parameter information capable of representing a load state of the first vbrs. For example, the sampling parameter information may include: at least one of a CPU usage rate, a memory usage rate, a DHCP (Dynamic Host Configuration Protocol) Address pool usage rate, a PPPoE user number, an IPoE user number, an uplink link rate, a downlink link rate, and a NAT (Network Address Translation) session number.
The capacity expansion condition may be a trigger condition for the service orchestrator to expand the capacity of the first vbrs. For example, the capacity expansion condition may be that each item of sampling parameter information of the first vbrs reaches a threshold, and when the service orchestrator monitors that each item of sampling parameter information of the first vbrs reaches the threshold, it is determined that the first vbrs satisfies the capacity expansion condition.
It can be understood that, the above capacity expansion condition is that each item of sampling parameter information of the first vbrs reaches a threshold, which is only an example of the capacity expansion condition of the present disclosure, and actually, the condition that the service orchestrator may be triggered to perform capacity expansion on the first vbrs may also be:
sampling parameter information with preset item number in various sampling parameter information of the first vBRAS reaches a threshold value; alternatively, the first and second electrodes may be,
all the sampling parameter information of the first vBRAS reaches a threshold value; alternatively, the first and second electrodes may be,
the frequency of the preset number of sampling parameter information reaching the threshold reaches a frequency threshold; alternatively, the first and second electrodes may be,
in each item of sampling parameter information of the first vbrs, sampling parameter information of a preset number of items reaches a threshold, and the number of times that the sampling parameter information of the preset number of items reaches the threshold reaches a number of times threshold, and the like.
When determining that the first vbrs meets the capacity expansion condition, the service orchestrator may obtain a hardware parameter of the first vbrs, where the hardware parameter information may include: the number of CPU cores, the size of the memory space, network resource information including the mapping relation between the port and the physical network card, parameter information for mirroring (for example, the parameter information of the operating system of the first vBRAS) and other parameter information.
For example, the service orchestrator may retrieve the hardware parameters of the first vbrs from a memory area for storing the hardware parameters of the respective vbrs. Or, the service orchestrator may send a hardware parameter acquisition message to the first vbrs, and after receiving the hardware parameter acquisition message, the first vbrs may respond to the hardware parameter acquisition message, thereby sending the hardware parameter of the first vbrs to the service orchestrator.
Step 102, sending a second vBRAS creation request to a Virtual Infrastructure Manager (VIM) so that the VIM can create the hardware parameter of the first vBRAS carried in the request according to the second vBRAS;
for example, the service orchestrator may generate a capacity expansion instruction according to a hardware parameter of the first vbars, and send the capacity expansion instruction to a VNFM (Virtualized Network Function Manager), where the VNFM generates a vbars creation second vbars creation request according to the capacity expansion instruction, and sends the second vbars creation request to a VIM (Virtualized infrastructure Manager), and the VIM creates a second vbars in the resource device managed by the VIM according to a hardware parameter of the first vbars carried in the second vbars creation request and the resource information managed by the VIM according to the hardware parameter of the first vbars and the resource information managed by the VIM, where the hardware parameter of the second vbars is consistent with the hardware parameter of the first vbars. And after the VIM completes the creation of the second vBRAS, sending a successful creation response message to the VNFM, and sending a successful capacity expansion response to the service orchestrator by the VNFM according to the successful creation response message.
Step 103, after the second vbrs is successfully created, acquiring the virtual switch instance VSI and VXLAN ID to which the first VXLAN tunnel established by the first vbrs and the switch belongs.
For different networking conditions, the vbars can establish VXLAN tunnels with different types of switches. For example, the switch that creates the VXLAN tunnel with the vbars may be an access switch or a resource pool gateway. The type of switch that establishes the VXLAN tunnel with the vbars is not limited in this embodiment.
After the service orchestrator completes creation of the second vbrs, first VXLAN tunnel information corresponding to the first vbrs may be obtained from a local storage area for storing tunnel information of each vbrs, where the first VXLAN tunnel information may include VSI (Virtual Switch Instance) information corresponding to the first VXLAN tunnel and VXLAN ID of the first VXLAN tunnel.
Step 104, sending a second tunnel creation instruction to the switch, so that the switch establishes a second VXLAN tunnel between the switch and the second vbrs;
wherein the second tunnel creation instruction includes: a destination IP address of the second VXLAN tunnel, a VSI to which the second VXLAN tunnel belongs, a VXLAN ID of the second VXLAN tunnel; the destination IP address of the second VXLAN tunnel is the IP address of the second vBRAS, the VSI to which the second VXLAN tunnel belongs is the same as the VSI to which the first VXLAN tunnel belongs, and the VXLAN ID of the second VXLAN tunnel is the same as the VXLAN ID of the first VXLAN tunnel.
The service orchestrator may generate a second tunnel creation instruction according to the virtual switch instance VSI information of the first VXLAN tunnel corresponding to the first vbrs, the VXLAN ID of the first VXLAN tunnel, and the IP address of the second vBRAS, and issue the second tunnel creation instruction to the switch. After receiving the second tunnel creation command, the switch may create a second VXLAN tunnel corresponding to the second VXLAN tunnel under the VSI represented by the VSI information, where a destination address of the second VXLAN tunnel is an IP address of the second VXLAN tunnel, and a VXLAN ID of the second VXLAN tunnel is the same as a VXLAN ID of the first VXLAN tunnel.
For example, after receiving a data packet reported by a host, a switch may perform VXLAN encapsulation on the data packet according to a relevant VSI, and send the encapsulated data packet to a first vBRAS and a second vBRAS through a first VXLAN tunnel and a second VXLAN tunnel bound by the VSI, so as to perform load sharing on the first vBRAS through the second vBRAS (for example, a service orchestrator may send a delay processing instruction to the first vBRAS when the first vBRAS is overloaded, and after receiving the delay processing instruction, the first vBRAS does not process the received data packet, and at this time, the second vBRAS processes the received data packet, which may refer to a relevant description part in the following embodiments, and this disclosure is not repeated here).
Of course, in order to establish a tunnel between the second vbrs and the switch, in addition to sending the second tunnel creation command to the switch, a tunnel creation command is also sent to the second vbrs accordingly. In a possible implementation manner, the method may further include:
the service orchestrator sends a third tunnel creation instruction to the second vBRAS, so that the second vBRAS establishes a third VXLAN tunnel between the switch and the second vBRAS;
wherein the third tunnel creation instruction includes: a destination IP address of the third VXLAN tunnel, a VSI to which the third VXLAN tunnel belongs, and a VXLAN ID of the third VXLAN tunnel; the destination IP address of the third VXLAN tunnel is the IP address of the switch, the VSI to which the third VXLAN tunnel belongs is the same as the VSI to which the first VXLAN tunnel belongs, and the VXLAN ID of the third VXLAN tunnel is the same as the VXLAN ID of the first VXLAN tunnel.
Wherein, the source IP address of the second VXLAN tunnel is the IP address of the switch, and the source IP address of the third VXLAN tunnel is the IP address of the second vBRAS. It can be seen that the third VXLAN tunnel and the second VXLAN tunnel are actually a tunnel, since the destination IP address of the tunnel is directed to the switch for the second vBRAS, and the destination IP address of the tunnel is directed to the second vBRAS for the switch, since the destination IP address of the tunnel in the tunnel creation command issued to the vBRAS is different from the destination IP address of the tunnel in the tunnel creation command issued to the switch when the tunnel creation command is issued, in this embodiment, the tunnel creation command is distinguished as "second tunnel creation command" and "third tunnel creation command", but it should be understood that the third VXLAN tunnel and the second VXLAN tunnel are the same tunnel.
Therefore, when the service orchestrator monitors that the first vBRAS meeting the capacity expansion condition exists, the service orchestrator can acquire the hardware parameter of the first vBRAS and create the second vBRAS according to the hardware parameter of the first vBRAS. And after the creation of the second vBRAS is completed, sending a second tunnel creation instruction to the switch, so that the switch creates a second VXAAN tunnel with the destination address being the IP address of the second vBRAS, wherein the second VXAAN tunnel and the first VXAAN tunnel corresponding to the first vBRAS correspond to the same VXAN ID and are bound under the same VSI. According to the capacity expansion method for the vBRAS resource pool of the virtual broadband remote access server, when the first vBRAS meets the capacity expansion condition, the second vBRAS which is consistent with the hardware resource specification of the first vBRAS can be automatically and quickly established, and the automatic capacity expansion of the vBRAS resource pool can be realized; the load of the first vBRAS can be reduced by carrying out load sharing on the first vBRAS through the second vBRAS, and the problem that the service of a user is influenced due to the fact that the load of the first vBRAS is too high is avoided.
Fig. 2 is a flowchart illustrating a method for expanding a virtual broadband remote access server vbars resource pool according to an embodiment of the present disclosure.
In a possible implementation manner, referring to fig. 2, in step 101, when it is monitored that there is a first vbrs meeting a capacity expansion condition, acquiring a hardware parameter of the first vbrs, which may be implemented by the following steps:
step 1011, collecting sampling parameter information of the first vBRAS, wherein the sampling parameter information is information representing the load state of the first vBRAS;
for example, the service orchestrator may periodically retrieve sampled parameter information for a first vbrs from a memory area for recording parameter information for each vbrs.
Step 1012, when the sampling parameter information meets a preset condition, increasing the overload statistic corresponding to the first vbars according to a preset step length;
the preset condition may be a trigger condition for triggering the service orchestrator to increase the overload statistics of the first vbars. For example, the sampling parameter information includes: the preset conditions include a CPU utilization rate, a memory utilization rate, and a DHCP address pool utilization rate, where N sampling parameter information in the sampling parameter information reaches a corresponding threshold, where N is a preset positive integer. If N is 1, it may be determined that the sampling parameter information satisfies a preset condition when the CPU utilization reaches a CPU utilization threshold, or the memory utilization reaches a memory utilization threshold, or the DHCP address pool utilization reaches a DHCP address pool utilization threshold.
Or, assuming that N is 2, that is, when any two of the 3 items of parameter information reach corresponding threshold values, it may be determined that the sampling parameter information satisfies the preset condition. Or, assuming that N is 3, that is, when all of the above 3 items of sampling parameter information reach the corresponding threshold, it may be determined that the sampling parameter information satisfies the preset condition.
When the sampling parameter information meets the preset condition, the service orchestrator can increase the overload statistic value of the first vBRAS according to the preset step length. Wherein the preset step length is the increase amplitude of the preset overload statistic value.
And 1013, when the overload statistic corresponding to the first vbrs reaches an overload statistic threshold, acquiring the hardware parameter of the first vbrs.
In the statistical period of the overload statistical value, if the overload statistical value corresponding to the first vbars reaches the overload statistical value threshold, the service orchestrator may determine that the first vbars satisfies the capacity expansion condition, may obtain the hardware parameter of the first vbars, and creates a second vbars according to the hardware parameter of the first vbars.
For example, the initial value of the overload statistic value corresponding to the first vbrs may be 0 in the statistic period, and if the preset step size is 10%, the service orchestrator may increase the overload statistic value of the first vbrs by 10% when it is determined that the sampling parameter information of the first vbrs satisfies the capacity expansion condition, and repeat the step of increasing the overload statistic value until the overload statistic value of the first vbrs reaches 100% in the statistic period of the overload statistic value when it is detected that the parameter information of the first vbrs satisfies the capacity expansion condition again.
Further exemplarily, the initial value of the overload statistic value corresponding to the first vbrs may be 0 in the statistic period, and if the preset step size is 5, the service orchestrator may increase the overload statistic value of the first vbrs by 5 when it is determined that the sampling parameter information of the first vbrs satisfies the capacity expansion condition, and in the statistic period of the overload statistic value, when it is detected again that the parameter information of the first vbrs satisfies the capacity expansion condition, the service orchestrator may repeat the step of increasing the overload statistic value until the overload statistic value of the first vbrs reaches 50, and then it may be determined that the first vbrs satisfies the capacity expansion condition.
Therefore, the service orchestrator can increase the overload statistical value corresponding to the first vbars when the sampling parameter information of the first vbars meets the preset condition, and create a second vbars having the same service processing capability and the same network mapping relation as the first vbars according to the hardware parameter of the first vbars when the overload statistical value reaches the overload statistical value threshold, that is, the service orchestrator can expand the capacity of the first vbars in the vbars resource pool when determining that the sampling parameter information of the first vbars meets the preset condition for many times, so that the problem of resource waste caused by expansion when the traffic at a certain moment is too large due to an emergency can be avoided, and resource consumption caused by network oscillation can be reduced.
In a possible implementation manner, the sampling parameter information of the first vbrs may include at least one item, and the acquiring, in step 1011, the sampling parameter information of the first vbrs specifically may include:
and for each item of sampling parameter information in the sampling parameter information, acquiring a value corresponding to the item of sampling parameter information of the first vBRAS at one or more moments.
The number of the sampling parameter information is preset. For example, for the memory usage, the corresponding sampling number may be 3, and the service orchestrator may collect memory usage of 3 first vbars, including: the memory utilization rate at the current moment and the memory utilization rates corresponding to the two moments before the current moment respectively.
It should be noted that the number of samples corresponding to each item of sampling parameter information may be the same or different, and this is not limited in this disclosure.
Fig. 3 shows a flowchart of a method for expanding a vbars resource pool of a broadband remote access server according to an embodiment of the present disclosure.
In a possible implementation manner, referring to fig. 3, in step 1012, when the sampling parameter information meets a preset condition, the overload statistic corresponding to the first vbrs is increased according to a preset step size, which may be specifically implemented in step 10121 and step 10122.
Step 10111, for each item of sampling parameter information in the sampling parameter information, acquiring a value corresponding to the item of sampling parameter information of the first vbars at one or more time points.
It should be noted that, in the embodiment of the present disclosure, reference may be made to relevant contents of the above method embodiment for implementing the step 10111, and the present disclosure is not limited herein.
10121, determining a sampling value corresponding to each item of sampling parameter information in the sampling parameter information according to a value corresponding to the item of sampling parameter information at one or more moments;
for each item of parameter information in the sampling parameter information of the first vbrs collected by the service orchestrator, the service orchestrator may determine, according to a value corresponding to the sampling parameter information at one or more of the collected times, a sampling value corresponding to the sampling parameter information. For example, the service orchestrator may determine that a maximum value or a minimum value of the plurality of pieces of sampling parameter information is a sampling value corresponding to the piece of sampling parameter information, or the service orchestrator may determine that an average value of the plurality of pieces of sampling parameter information at a plurality of times is a sampling value corresponding to the piece of sampling parameter information.
For example, the service orchestrator collects the memory usage of the first vbrs at 3 times: the memory usage rate 1 corresponding to the current time 1, the memory usage rate 2 corresponding to the time 2 before the time 1, and the memory usage rate 3 corresponding to the time 3. The service orchestrator may determine that a maximum value or a minimum value in the 3 pieces of memory usage information is a sampling value corresponding to the memory usage, or the service orchestrator may determine that an average value of the 3 pieces of memory usage is a sampling value corresponding to the memory usage.
Step 10122, if N sampling values are greater than sampling threshold values corresponding to the sampling values in the sampling values corresponding to the parameter information, determining that the sampling parameter information meets preset conditions, and calculating overload statistics values corresponding to the first vbars according to preset step lengths; wherein N is a positive integer.
For example, the sampling parameter information may include: the preset conditions include a CPU utilization rate, a memory utilization rate and a DHCP address pool utilization rate, wherein N sampling values in the sampling values corresponding to various sampling parameter information reach corresponding sampling threshold values, and N is a preset positive integer. Assuming that N is 1, that is, when the sampling value of the CPU usage reaches the CPU usage sampling threshold, or the sampling value of the memory usage reaches the memory usage sampling threshold, or the sampling value of the DHCP address pool usage reaches the DHCP address pool usage sampling threshold, it may be determined that the sampling parameter information satisfies the preset condition.
Or, assuming that N is 2, that is, when any two sampling values of the sampling values corresponding to the above 3 sampling parameter information reach the corresponding sampling threshold, it may be determined that the sampling parameter information satisfies the preset condition. Or, assuming that N is 3, that is, when all the sampling values corresponding to the above 3 sampling parameter information reach the corresponding sampling threshold, it may be determined that the sampling parameter information satisfies the preset condition.
In a possible implementation manner, the above sampling parameter information, the sampling number corresponding to the sampling parameter information, the sampling threshold corresponding to the sampling parameter information, the preset condition, and the like may be set by a user in a command line manner or through a setting interface of a client.
Therefore, the service orchestrator acquires the value corresponding to each item of sampling parameter information at one or more moments for each item of sampling parameter information in the sampling parameter information, determines the sampling value corresponding to the item of sampling parameter information through the value of one or more items of sampling parameter information, and determines that the sampling parameter information meets the preset condition when the sampling value is greater than the sampling threshold value, so that the accuracy of the vBRAS resource pool capacity expansion can be improved, and further resources are saved.
Fig. 4 shows a schematic diagram of a networking structure of a vbars resource pool in the embodiment of the present disclosure. It should be noted that the networking structure is only an example of the embodiment of the present disclosure, but the embodiment of the present disclosure is not limited to the networking structure. In a possible implementation manner, the method may further include:
and when the sampling parameter information meets a preset condition, sending a delay processing instruction to the first vBRAS, wherein the delay processing instruction indicates the first vBRAS to process the received data message after the delay threshold time.
Referring to fig. 4, the service orchestrator may send a delay processing instruction to the first vbrs when the sampling parameter information of the first vbrs satisfies a preset condition, where the delay processing instruction indicates that the first vbrs performs delay processing on the received data packet within a delay threshold specified by the delay processing instruction. And after receiving the delay processing instruction, the first vBRAS enters a delay processing state, and in the delay processing state, the first vBRAS carries out delay processing on the received data message.
After receiving the data message, the switch determines a VSI corresponding to the data message, encapsulates the data message by a corresponding VXLAN, and then sends the encapsulated data message to a first vBRAS and a second vBRAS through a first VXLAN tunnel and a second VXLAN tunnel bound by the VSI.
If the first vBRAS is in a delay processing state at the moment, the data message is not processed, the second vBRAS receives the data message and then carries out response processing on the data message, response information aiming at the data message is sent to a host sending the data message, the host can send response feedback information to the second vBRAS after receiving the response information aiming at the data message from the second vBRAS, and the second vBRAS starts to process the data message after receiving the response feedback information.
After the first vbrs exits the delay processing state (for example, when the service orchestrator determines that the sampling parameter information of the first vbrs does not satisfy the preset condition, an exit delay instruction is sent to the first vbrs, where the exit delay instruction indicates that the first vbrs exits the delay processing state, or the delay processing duration reaches the delay threshold time), the first vbrs may send response information for the data packet to the host, and after the host receives the response message for the data packet from the first vbrs, the host does not respond because the data packet is already processed by the second vbrs, and the first vbrs does not receive a response feedback message of the host within the preset time, and may discard the data packet.
Therefore, when monitoring that the load of the first vBRAS is too heavy and meets the preset condition, the service orchestrator can send a delay processing instruction to the first vBRAS, and the first vBRAS can respond to the delay processing instruction and delay the received data message, so that the data message can be processed through the second vBRAS, and further the load sharing of the first vBRAS is realized, the utilization rate of resources can be improved, and the processing speed of the data message can be improved. Fig. 5 is a flowchart illustrating a method for expanding a vbars resource pool of a broadband remote access server according to an embodiment of the present disclosure.
In one possible implementation manner, referring to fig. 5, the method may further include:
step 104, when monitoring a first vBRAS meeting capacity expansion conditions, determining whether the first vBRAS has a second vBRAS associated with the first vBRAS;
step 105, when the first vBRAS has a second vBRAS associated with the first vBRAS, determining whether the second vBRAS meets a capacity expansion condition;
and step 106, when the second vBRAS meets the capacity expansion condition, sending a third vBRAS creation request to a Virtual Infrastructure Manager (VIM) so that the VIM creates a third vBRAS according to the hardware parameters of the first vBRAS carried in the third vBRAS creation request.
And step 107, sending a third vBRAS creation request to the VIM according to the hardware parameters of the first vBRAS, creating the third vBRAS by the VIM according to the third vBRAS creation request, and allocating an IP address to the third vBRAS.
After creating the third vbrs, the service orchestrator may generate a fourth tunnel creation instruction according to the IP address of the third vbrs, the virtual switch interface VSI information of the first VXLAN tunnel corresponding to the first vbrs, and the VXLAN ID of the first VXLAN tunnel, and send the fourth tunnel creation instruction to the switch, so that the switch may create the fourth VXLAN tunnel according to the fourth tunnel creation instruction.
And the switch creates a fourth VXLAN tunnel according to the fourth tunnel creation instruction, wherein the fourth VXLAN tunnel is bound in the VSI represented by the VSI information, the destination address is the IP address of the third vBRAS, and the VXLAN ID is the same as the VXLAN ID of the first VXLAN tunnel.
Therefore, the third vBRAS can share the load of the first vBRAS and the second vBRAS, the expansion of a vBRAS resource pool can be realized, resources are reasonably utilized, and the processing efficiency of the data message is improved.
Fig. 6 is a block diagram illustrating a configuration of a capacity expansion apparatus for a vbars resource pool of a virtual broadband remote access server according to an embodiment of the present disclosure, where the apparatus may be applied to a service orchestrator. As shown in fig. 6, the apparatus may include:
a first obtaining module 601, configured to obtain a hardware parameter of a first vbrs when it is monitored that the first vbrs meeting a capacity expansion condition exists;
a first sending module 602, configured to send a second vbars creation request to a virtualized infrastructure manager VIM, so that the VIM creates a second vbars according to a hardware parameter of the first vbars carried in the second vbars creation request;
a second obtaining module 603, configured to obtain, after the second vbrs is successfully created, a virtual switch instance VSI and a VXLAN ID to which a first VXLAN tunnel established by the first vbrs and the switch belongs;
a second sending module 604, configured to send a second tunnel creation instruction to the switch, so that the switch establishes a second VXLAN tunnel between the switch and the second vbrs;
wherein the second tunnel creation instruction includes: a destination IP address of the second VXLAN tunnel, a VSI to which the second VXLAN tunnel belongs, a VXLAN ID of the second VXLAN tunnel; the destination IP address of the second VXLAN tunnel is the IP address of the second vBRAS, the VSI to which the second VXLAN tunnel belongs is the same as the VSI to which the first VXLAN tunnel belongs, and the VXLAN ID of the second VXLAN tunnel is the same as the VXLAN ID of the first VXLAN tunnel.
Therefore, when the service orchestrator monitors that the first vBRAS meeting the capacity expansion condition exists, the service orchestrator can acquire the hardware parameter of the first vBRAS and create the second vBRAS according to the hardware parameter of the first vBRAS. And after the creation of the second vBRAS is completed, sending a second tunnel creation instruction to the switch, so that the switch creates a second VXAAN tunnel with the destination address being the IP address of the second vBRAS, wherein the second VXAAN tunnel and the first VXAAN tunnel corresponding to the first vBRAS correspond to the same VXAN ID and are bound under the same VSI. According to the capacity expansion device for the vBRAS resource pool of the virtual broadband remote access server, when the first vBRAS meets the capacity expansion condition, the second vBRAS which is consistent with the hardware resource specification of the first vBRAS can be automatically and quickly established, and the automatic capacity expansion of the vBRAS resource pool can be realized; the load of the first vBRAS can be reduced by carrying out load sharing on the first vBRAS through the second vBRAS, and the problem that the service of a user is influenced due to the fact that the load of the first vBRAS is too high is avoided.
Fig. 7 is a block diagram illustrating a configuration of a capacity expansion apparatus of a vbars resource pool according to an embodiment of the present disclosure.
In a possible implementation manner, referring to fig. 7, the first obtaining module 601 includes:
an acquisition submodule 6011, configured to acquire sampling parameter information of a first vbrs, where the sampling parameter information is information representing a load state of the first vbrs;
a growth submodule 6012, configured to increase, when the sampling parameter information meets a preset condition, an overload statistic corresponding to the first vbars according to a preset step length;
obtaining sub-module 6013 may be configured to obtain a hardware parameter of the first vbrs when the overload statistic corresponding to the first vbrs reaches an overload statistic threshold.
In a possible implementation manner, the sampling parameter information of the first vbars includes at least one item, and the acquisition sub-module 6011 may be further configured to, for each item of sampling parameter information in the sampling parameter information, acquire a value corresponding to the item of sampling parameter information of the first vbars at one or more time instants.
In a possible implementation manner, the growth submodule 6012 may be further configured to:
for each item of sampling parameter information in the sampling parameter information, determining a sampling value corresponding to the item of sampling parameter information according to a value corresponding to the item of sampling parameter information at one or more moments;
if N sampling values are larger than sampling threshold values corresponding to the sampling values in the sampling values corresponding to the sampling parameter information, determining that the sampling parameter information meets preset conditions, and increasing overload statistics values corresponding to the first vBRAS according to preset step lengths; wherein N is a positive integer.
In one possible implementation, referring to fig. 7, the apparatus may further include:
the third sending module 605 may be configured to send a delay processing instruction to the first vbrs when the sampling parameter information meets a preset condition, where the delay processing instruction indicates that the received data packet is processed after the first vbrs delays for a threshold time.
In one possible implementation, referring to fig. 7, the apparatus may further include:
a first determining module 606, configured to determine whether a second vbars associated with a first vbars exists when the first vbars meeting a capacity expansion condition is monitored;
a second determining module 607, configured to determine whether a second vbrs satisfies a capacity expansion condition when the first vbrs has an associated second vbrs;
a fourth sending module 608, configured to send a third vbrs creation request to the virtualized infrastructure manager VIM when the second vbrs meets the capacity expansion condition, so that the VIM creates the third vbrs according to the hardware parameter of the first vbrs carried in the third vbrs creation request.
Fig. 8 is a block diagram illustrating a hardware configuration of a capacity expansion apparatus of a vbars resource pool according to an exemplary embodiment. In practical applications, the device may be implemented by a server. Referring to fig. 8, the apparatus 1300 may include a processor 1301, a machine-readable storage medium 1302 storing machine-executable instructions. The processor 1301 and the machine-readable storage medium 1302 may communicate via a system bus 1303. Moreover, the processor 1301 executes the above-described capacity expansion method of the virtual broadband remote access server vbars resource pool by reading a machine executable instruction in the machine readable storage medium 1302, which corresponds to the capacity expansion logic of the virtual broadband remote access server vbars resource pool.
The machine-readable storage medium 1302 referred to herein may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and the like. For example, the machine-readable storage medium may be: random Access Memory (RAM), volatile Memory, non-volatile Memory, flash Memory, a storage drive (e.g., a hard drive), a solid state drive, any type of storage disk (e.g., an optical disk, dvd, etc.), or similar storage media, or a combination thereof. Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A virtual broadband remote access server vBRAS resource pool capacity expansion method is characterized in that the method is applied to a service orchestrator and comprises the following steps:
when monitoring that a first vBRAS meeting capacity expansion conditions exists, acquiring hardware parameters of the first vBRAS;
sending a second vBRAS creation request to a Virtual Infrastructure Manager (VIM) so that the VIM creates a second vBRAS according to the hardware parameters of the first vBRAS carried in the second vBRAS creation request;
after the second vBRAS is successfully established, acquiring a virtual switching instance VSI and a VXLAN ID which a first VXLAN tunnel established by the first vBRAS and a switch belongs to;
sending a second tunnel creation instruction to the switch so that the switch establishes a second VXLAN tunnel between the switch and the second vBRAS;
wherein the second tunnel creation instruction includes: a destination IP address of the second VXLAN tunnel, a VSI to which the second VXLAN tunnel belongs, a VXLAN ID of the second VXLAN tunnel; the destination IP address of the second VXLAN tunnel is the IP address of the second vBRAS, the VSI to which the second VXLAN tunnel belongs is the same as the VSI to which the first VXLAN tunnel belongs, and the VXLAN ID of the second VXLAN tunnel is the same as the VXLAN ID of the first VXLAN tunnel;
when it is monitored that a first vBRAS meeting capacity expansion conditions exists, acquiring hardware parameters of the first vBRAS, wherein the hardware parameters include: acquiring sampling parameter information of a first vBRAS, wherein the sampling parameter information is information representing the load state of the first vBRAS;
the sampling parameter information of the first vbars includes at least one item, and the acquiring of the sampling parameter information of the first vbars includes: and for each item of sampling parameter information in the sampling parameter information, acquiring a value corresponding to the item of sampling parameter information of the first vBRAS at one or more moments.
2. The method of claim 1, wherein when it is monitored that there is a first vbrs that meets a capacity expansion condition, acquiring a hardware parameter of the first vbrs, further comprising:
when the sampling parameter information meets a preset condition, increasing the overload statistical value corresponding to the first vBRAS according to a preset step length;
and when the overload statistic value corresponding to the first vBRAS reaches an overload statistic value threshold value, acquiring the hardware parameter of the first vBRAS.
3. The method of claim 2,
when the sampling parameter information meets a preset condition, the overload statistic value corresponding to the first vBRAS is increased according to a preset step length, and the method comprises the following steps:
for each item of sampling parameter information in the sampling parameter information, determining a sampling value corresponding to the item of sampling parameter information according to a value corresponding to the item of sampling parameter information at one or more moments;
if N sampling values are larger than sampling threshold values corresponding to the sampling values in the sampling values corresponding to the sampling parameter information, determining that the sampling parameter information meets preset conditions, and increasing overload statistics values corresponding to the first vBRAS according to preset step lengths; wherein N is a positive integer.
4. The method of claim 2, further comprising:
and when the sampling parameter information meets a preset condition, sending a delay processing instruction to the first vBRAS, wherein the delay processing instruction indicates the first vBRAS to process the received data message after the delay threshold time.
5. The method of claim 1, further comprising:
when monitoring a first vBRAS meeting capacity expansion conditions, determining whether the first vBRAS has a second vBRAS associated with the first vBRAS;
when the first vBRAS has a second vBRAS associated with the first vBRAS, determining whether the second vBRAS meets a capacity expansion condition;
and when the second vBRAS meets the capacity expansion condition, sending a third vBRAS creation request to a Virtual Infrastructure Manager (VIM) so that the VIM creates a third vBRAS according to the hardware parameters of the first vBRAS carried in the third vBRAS creation request.
6. The utility model provides a dilatation device of virtual broadband remote access server vBRAS resource pool which characterized in that is applied to the business orchestrator, includes:
the first acquisition module is used for acquiring hardware parameters of a first vBRAS when the first vBRAS meeting capacity expansion conditions is monitored;
the first sending module is used for sending a second vBRAS creation request to the VIM so that the VIM creates a second vBRAS according to the hardware parameters of the first vBRAS carried in the second vBRAS creation request;
a second obtaining module, configured to obtain, after the second vbrs is successfully created, a virtual switch instance VSI and a VXLAN ID to which a first VXLAN tunnel established between the first vbrs and the switch belongs;
a second sending module, configured to send a second tunnel creation instruction to the switch, so that the switch establishes a second VXLAN tunnel between the switch and the second vbrs;
wherein the second tunnel creation instruction includes: a destination IP address of the second VXLAN tunnel, a VSI to which the second VXLAN tunnel belongs, a VXLAN ID of the second VXLAN tunnel; the destination IP address of the second VXLAN tunnel is the IP address of the second vBRAS, the VSI to which the second VXLAN tunnel belongs is the same as the VSI to which the first VXLAN tunnel belongs, and the VXLAN ID of the second VXLAN tunnel is the same as the VXLAN ID of the first VXLAN tunnel;
the first obtaining module includes:
the acquisition submodule is used for acquiring sampling parameter information of a first vBRAS, wherein the sampling parameter information is information representing the load state of the first vBRAS;
the sampling parameter information of the first vbars at least comprises one item, and the acquisition sub-module is further configured to acquire, for each item of sampling parameter information in the sampling parameter information, a value corresponding to the item of sampling parameter information of the first vbars at one or more time instants.
7. The apparatus of claim 6, wherein the first obtaining module further comprises:
the growth submodule is used for increasing the overload statistical value corresponding to the first vBRAS according to a preset step length when the sampling parameter information meets a preset condition;
and the obtaining sub-module is used for obtaining the hardware parameter of the first vBRAS when the overload statistic value corresponding to the first vBRAS reaches an overload statistic value threshold value.
8. The apparatus of claim 7, wherein the grow submodule is further configured to:
for each item of sampling parameter information in the sampling parameter information, determining a sampling value corresponding to the item of sampling parameter information according to a value corresponding to the item of sampling parameter information at one or more moments;
if N sampling values are larger than sampling threshold values corresponding to the sampling values in the sampling values corresponding to the sampling parameter information, determining that the sampling parameter information meets preset conditions, and increasing overload statistics values corresponding to the first vBRAS according to preset step lengths; wherein N is a positive integer.
9. The apparatus of claim 7, further comprising:
and the third sending module is used for sending a delay processing instruction to the first vBRAS when the sampling parameter information meets a preset condition, wherein the delay processing instruction indicates that the first vBRAS processes the received data message after the delay threshold time.
10. The apparatus of claim 6, further comprising:
the first determining module is used for determining whether a second vBRAS associated with the first vBRAS exists when the first vBRAS meeting the capacity expansion condition is monitored;
a second determining module, configured to determine whether a second vbrs meets a capacity expansion condition when the first vbrs has an associated second vbrs;
and a fourth sending module, configured to send a third vbars creation request to a virtualized infrastructure manager VIM when the second vbars meets the capacity expansion condition, so that the VIM creates the third vbars according to the hardware parameter of the first vbars carried in the third vbars creation request.
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