Table of contents
Combined revision comparison
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SoftEther VPN Server is VPN server software thatequipped equips with superior performance and functions. AltoughThroughput the power a single computer can exhibit by hardware resource is always limited, the throughput and number of simultaneous connections that can be supported by a single VPN Server that differsdiffer according to the hardware performance of the computer running VPN Server, but the power a single computer can exhibit by hardware resource is always limited. No matter how much the server hardwares areserverhardware is optimized and speeded up, hardware performance limitations ultimately exist, and more processing cannot be executed on a single computer.
Using the clustering function of SoftEther VPN Server enables you to consolidate multiple VPN Servers as a single cluster. VPN connection source computers that attempt to connect to the cluster (usually connection from VPN Client, but there may also be cascade connection from VPN Server / Bridge, etc., in some cases) are automatically connected to one of the VPN Servers in the cluster by cluster controller. At this pointtime, the cluster controller decides the load balancing algorithm by operation mode of connection destination of Virtual Hub.
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If one of the computer operatscomputers operating in the cluster experiences trouble, such as fault and stops running, it will directly connectconnection is directed to other cluster computers by participating in the cluster and VPN communication processing continues. At this point, it appears thattime it appears the VPN communication from VPN connection source has stopped instantaneously, but it will be restored right away. Because of the processing thebutis restored right away, because processing of Virtual Hub that had conducted by VPN Server up to that point is executed, communication will continue automatically bycontinues by automatically avoiding the trouble without the VPN Server administrator or VPN users performing any special processing at all.
In the case where processing cannot be carried out with a single SoftEther VPN Server using these features, in the case where large amount of simultaneous connections that decreases throughput dramatically. And it can be processed in parallel by properly balancing the load or in the case a server in the cluster stops, also processing can be taken over by another server, so it can be used effectively in large scale environments or environments demanding high reliability.
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A cluster controller is a special computer. Each cluster of server requirs onlyone cluster controllerservers required one cluster controller only. The cluster controller manages all other computers that participatparticipating in the cluster (cluster member servers) and conducts important processing to maintain compatibility among the various servers.
If you are about to constructconstructing a cluster of VPN Servers using SoftEther VPN Server, at first, set as the cluster controller one of the server computerfirstone of the server computers is set as the cluster controller and other server computers will beare connected to the cluster controller.
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All computers which participating in the cluster other than the cluster controller are cluster member servers. Cluster member servers cannot operate on their own, but by executing the cluster control connection to the cluster controller to the SoftEther VPN Server cluster will beginbegins to operate as a single unit based on the connection destination cluster controller.
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The cluster function of SoftEther VPN Server operates optimally with primarily two applications: large scale remote access VPN Server and large scale Virtual Hub hosting VPN Server. It will also function correctly,alsofunctions correctly if it is necessary to use the two applications combined.
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The SoftEther VPN Server clustering function can be used when constructis used when constructing a remote access VPN server by using SoftEther VPN Server to connect computers at a remote location to company LAN. Also itand there is expected to be an extremely large number of connections or whileif high reliability is required and you want to shorten stop time as much as possible for remote access VPN server hardware fault, etc.
A cluster of VPN Servers is constructed, a static Virtual Hub is established within for instance of static Virtual Hub generated by VPN server, load balancing is automatically carried out for large quantities of users that attempt remote access to the network and are connected to the proper VPN Server computer in the cluster by bridge connection of network such as physical company LAN. At this time the user does not have to be aware that whom connectshe is connected to the cluster and no special operation will beis required. Also, as a result of load balancing, the same communication can be carried out as when connected to any VPN Server computer. In case hardware fault occurs for the connection destination VPN Server computer or if the server needs to be temporarily shut off or restarted for adding hardware or updating the operating system, that computer is already connected and when reconnected the VPN session is automatically switched to another VPN Server so communication can continue.
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Version from 18:50, 3 Mar 2013
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SoftEther VPN Server is VPN server software equippedwith superior performance and functions. Throughput and number of simultaneous connections that can be supported by a single VPN Server differ according to the hardware performance of the computer running VPN Server, but the power a single computer can exhibit by hardware resource is always limited. No matter how much server hardware is optimized and speeded up, hardware performance limitations ultimately exist, and more processing cannot be executed on a single computer.
Using the clustering function of SoftEther VPN Server enables you to consolidate multiple VPN Servers as a single cluster. VPN connection source computers that attempt to connect to the cluster (usually connection from VPN Client, but there may also be cascade connection from VPN Server / Bridge, etc., in some cases) are automatically connected to one of the VPN Servers in the cluster by cluster controller. At this time, the cluster controller decides the load balancing algorithm by operation mode of connection destination Virtual Hub.
...
If one of the computers operating in the cluster experiences trouble such as fault and stops running, connection is directed to other cluster computers participating in the cluster and VPN communication processing continues. At this time it appears the VPN communication from VPN connection source has stopped instantaneously but is restored right away, because processing of Virtual Hub that had conducted by VPN Server up to that point is executed, communication continues by automatically avoiding the trouble without the VPN Server administrator or VPN users performing any special processing at all.
In the case where processing cannot be carried out with a single SoftEther VPN Server using these features, in the case where large amount of simultaneous connections that decreases throughput dramatically can be processed in parallel by properly balancing the load or in the case a server in the cluster stops, processing can be taken over by another server, so it can be used effectively in large scale environments or environments demanding high reliability.
...
A cluster controller is a special computer. Each cluster of servers required one cluster controller only. The cluster controller manages all other computers participating in the cluster (cluster member servers) and conducts important processing to maintain compatibility among the various servers.
If constructing a cluster of VPN Servers using SoftEther VPN Server, first one of the server computers is set as the cluster controller and other server computers are connected to the cluster controller.
...
All computers participating in the cluster other than the cluster controller are cluster member servers. Cluster member servers cannot operate on their own, but by executing cluster control connection to the cluster controller the SoftEther VPN Server cluster begins to operate as a single unit based on the connection destination cluster controller.
...
The cluster function of SoftEther VPN Server operates optimally with primarily two applications: large scale remote access VPN Server and large scale Virtual Hub hosting VPN Server. It also functions correctly if it is necessary to use the two applications combined.
...
The SoftEther VPN Server clustering function is used when constructing a remote access VPN server using SoftEther VPN Server to connect computers at a remote location to company LAN and there is expected to be an extremely large number of connections or if high reliability is required and you want to shorten stop time as much as possible for remote access VPN server hardware fault, etc.
A cluster of VPN Servers is constructed, a static Virtual Hub is established within for instance of static Virtual Hub generated by VPN server, load balancing is automatically carried out for large quantities of users that attempt remote access to the network and are connected to the proper VPN Server computer in the cluster by bridge connection of network such as physical company LAN. At this time the user does not have to be aware that he is connected to the cluster and no special operation is required. Also, as a result of load balancing, the same communication can be carried out as when connected to any VPN Server computer. In case hardware fault occurs for the connection destination VPN Server computer or if the server needs to be temporarily shut off or restarted for adding hardware or updating the operating system, that computer is already connected and when reconnected the VPN session is automatically switched to another VPN Server so communication can continue.
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Version as of 21:08, 1 Feb 2014
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SoftEther VPN Server is VPN server software that equips with superior performance and functions. Altough the power a single computer can exhibit by hardware resource is always limited, the throughput and number of simultaneous connections that can be supported by a single VPN Server that differs according to the hardware performance of the computer running VPN Server. No matter how much the server hardwares are optimized and speeded up, hardware performance limitations ultimately exist, and more processing cannot be executed on a single computer.
Using the clustering function of SoftEther VPN Server enables you to consolidate multiple VPN Servers as a single cluster. VPN connection source computers that attempt to connect to the cluster (usually connection from VPN Client, but there may also be cascade connection from VPN Server / Bridge, etc., in some cases) are automatically connected to one of the VPN Servers in the cluster by cluster controller. At this point, the cluster controller decides the load balancing algorithm by operation mode of connection destination of Virtual Hub.
...
If one of the computer operats in the cluster experiences trouble, such as fault and stops running, it will directly connect to other cluster computers by participating in the cluster and VPN communication processing continues. At this point, it appears that the VPN communication from VPN connection source has stopped instantaneously, but it will be restored right away. Because of the processing the Virtual Hub that had conducted by VPN Server up to that point is executed, communication will continue automatically by avoiding the trouble without the VPN Server administrator or VPN users performing any special processing at all.
In the case where processing cannot be carried out with a single SoftEther VPN Server using these features, large amount of simultaneous connections that decreases throughput dramatically. And it can be processed in parallel by properly balancing the load or in the case a server in the cluster stops, also processing can be taken over by another server, so it can be used effectively in large scale environments or environments demanding high reliability.
...
A cluster controller is a special computer. Each cluster of server requirs onlyone cluster controller. The cluster controller manages all other computers that participat in the cluster (cluster member servers) and conducts important processing to maintain compatibility among the various servers.
If you are about to construct a cluster of VPN Servers using SoftEther VPN Server, at first, set as the cluster controller one of the server computer and other server computers will be connected to the cluster controller.
...
All computers which participating in the cluster other than the cluster controller are cluster member servers. Cluster member servers cannot operate on their own, but by executing the cluster control connection to the cluster controller to the SoftEther VPN Server cluster will begin to operate as a single unit based on the connection destination cluster controller.
...
The cluster function of SoftEther VPN Server operates optimally with primarily two applications: large scale remote access VPN Server and large scale Virtual Hub hosting VPN Server. It will also function correctly, if it is necessary to use the two applications combined.
...
The SoftEther VPN Server clustering function can be used when construct a remote access VPN server by using SoftEther VPN Server to connect computers at a remote location to company LAN. Also it is expected to be an extremely large number of connections or while high reliability is required and you want to shorten stop time as much as possible for remote access VPN server hardware fault, etc.
A cluster of VPN Servers is constructed, a static Virtual Hub is established within for instance of static Virtual Hub generated by VPN server, load balancing is automatically carried out for large quantities of users that attempt remote access to the network and are connected to the proper VPN Server computer in the cluster by bridge connection of network such as physical company LAN. At this time the user does not have to be aware that whom connects to the cluster and no special operation will be required. Also, as a result of load balancing, the same communication can be carried out as when connected to any VPN Server computer. In case hardware fault occurs for the connection destination VPN Server computer or if the server needs to be temporarily shut off or restarted for adding hardware or updating the operating system, that computer is already connected and when reconnected the VPN session is automatically switched to another VPN Server so communication can continue.
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