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1. 发明授权

US08510428B2 Configurable geographic prefixes for global server load balancing 有权
公开(公告)号：US08510428B2
公开(公告)日：2013-08-13
申请号：US13595952
申请日：2012-08-27
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/173
CPC分类号： H04L29/12792 , H04L29/12933 , H04L61/60 , H04L61/6068 , H04L61/6095 , H04L67/1002 , H04L67/1014 , H04L67/1021
摘要： In a load balancing system, user-configurable geographic prefixes are provided. IP address prefix allocations provided by the Internet Assigned Numbers Authority (IANA) and associated geographic locations are stored in a first, static database in a load balancing switch, along with other possible default geographic location settings. A second, non-static database stores user-configured geographic settings. In particular, the second database stores Internet Protocol (IP) address prefixes and user-specified geographic regions for those prefixes. The specified geographic region can be continent, country, state, city, or other user-defined region. The geographic settings in the second database can override the information in the first database. These geographic entries help determine the geographic location of a client and host IP addresses, and aid in directing the client to a host server that is geographically the closest to that client.

2. 发明申请

US20120324089A1 CONFIGURABLE GEOGRAPHIC PREFIXES FOR GLOBAL SERVER LOAD BALANCING 有权
标题翻译：全球服务器负载均衡的可配置地理位置
公开(公告)号：US20120324089A1
公开(公告)日：2012-12-20
申请号：US13595952
申请日：2012-08-27
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/173
CPC分类号： H04L29/12792 , H04L29/12933 , H04L61/60 , H04L61/6068 , H04L61/6095 , H04L67/1002 , H04L67/1014 , H04L67/1021
摘要： In a load balancing system, user-configurable geographic prefixes are provided. IP address prefix allocations provided by the Internet Assigned Numbers Authority (IANA) and associated geographic locations are stored in a first, static database in a load balancing switch, along with other possible default geographic location settings. A second, non-static database stores user-configured geographic settings. In particular, the second database stores Internet Protocol (IP) address prefixes and user-specified geographic regions for those prefixes. The specified geographic region can be continent, country, state, city, or other user-defined region. The geographic settings in the second database can override the information in the first database. These geographic entries help determine the geographic location of a client and host IP addresses, and aid in directing the client to a host server that is geographically the closest to that client.
摘要翻译：在负载平衡系统中，提供用户可配置的地理前缀。互联网号码分配机构（IANA）和相关地理位置提供的IP地址前缀分配与其他可能的默认地理位置设置一起存储在负载平衡交换机中的第一个静态数据库中。第二个非静态数据库存储用户配置的地理设置。特别地，第二数据库存储针对这些前缀的因特网协议（IP）地址前缀和用户指定的地理区域。指定的地理区域可以是大陆，国家，州，城市或其他用户定义的区域。第二个数据库中的地理设置可以覆盖第一个数据库中的信息。这些地理条目有助于确定客户端的地理位置和主机IP地址，并帮助将客户端指向地理位置最接近该客户端的主机服务器。

3. 发明申请

US20100299427A1 CONFIGURABLE GEOGRAPHIC PREFIXES FOR GLOBAL SERVER LOAD BALANCING 失效
标题翻译：全球服务器负载均衡的可配置地理位置
公开(公告)号：US20100299427A1
公开(公告)日：2010-11-25
申请号：US12787779
申请日：2010-05-26
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/173
CPC分类号： H04L29/12792 , H04L29/12933 , H04L61/60 , H04L61/6068 , H04L61/6095 , H04L67/1002 , H04L67/1014 , H04L67/1021
摘要： In a load balancing system, user-configurable geographic prefixes are provided. IP address prefix allocations provided by the Internet Assigned Numbers Authority (IANA) and associated geographic locations are stored in a first, static database in a load balancing switch, along with other possible default geographic location settings. A second, non-static database stores user-configured geographic settings. In particular, the second database stores Internet Protocol (IP) address prefixes and user-specified geographic regions for those prefixes. The specified geographic region can be continent, country, state, city, or other user-defined region. The geographic settings in the second database can override the information in the first database. These geographic entries help determine the geographic location of a client and host IP addresses, and aid in directing the client to a host server that is geographically the closest to that client.
摘要翻译：在负载平衡系统中，提供用户可配置的地理前缀。由互联网号码分配机构（IANA）和相关地理位置提供的IP地址前缀分配与其他可能的默认地理位置设置一起存储在负载平衡交换机中的第一个静态数据库中。第二个非静态数据库存储用户配置的地理设置。特别地，第二数据库存储针对这些前缀的因特网协议（IP）地址前缀和用户指定的地理区域。指定的地理区域可以是大陆，国家，州，城市或其他用户定义的区域。第二个数据库中的地理设置可以覆盖第一个数据库中的信息。这些地理条目有助于确定客户端的地理位置和主机IP地址，并帮助将客户端指向地理位置最接近该客户端的主机服务器。

4. 发明申请

US20110122771A1 SMOOTHING ALGORITHM FOR ROUND TRIP TIME (RTT) MEASUREMENTS 有权
标题翻译：滚动时间（RTT）测量的平滑算法
公开(公告)号：US20110122771A1
公开(公告)日：2011-05-26
申请号：US13008321
申请日：2011-01-18
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： H04L12/26
CPC分类号： H04J3/0682 , H04L43/022 , H04L43/0864 , H04L43/16
摘要： A smoothing algorithm for round trip time (RTT) measurements is provided to a network device to effectively deal with variations or other potential anomalies that may occur in RTT measurements. The algorithm involves: first determining what should be considered a very high or a very small value for a RTT sample. If a new RTT sample is in an acceptable range, then the network device performs a relatively basic smoothing. If the new RTT sample is much higher than a current RTT value, then the network device ignores the value of this RTT sample a few times. If the network device still detects this large value after ignoring that value for some time, then the network device factors this value into the current RTT value using an additive increase. Similarly, if the value of the new RTT sample is much lower than current RTT value, the network device ignores the value of the new RTT sample a few times. If the network device still sees this small/low value after ignoring that value for sometime, then the network device factors this value into the current RTT value using a multiplicative decrease. An effective RTT value results, which can be used singly or in combination with other metrics to load balance network traffic.
摘要翻译：向网络设备提供往返时间（RTT）测量的平滑算法，以有效地处理RTT测量中可能出现的变化或其他潜在异常。该算法包括：首先确定RTT样本应该被认为是非常高或非常小的值。如果新的RTT样本处于可接受范围内，则网络设备执行相对基本的平滑。如果新的RTT样本远高于当前的RTT值，则网络设备忽略该RTT样本的值几次。如果网络设备在忽略该值一段时间后仍然检测到这个大值，则网络设备会使用加法增加将该值确定为当前的RTT值。类似地，如果新的RTT样本的值远低于当前RTT值，则网络设备忽略新的RTT样本的值几次。如果网络设备在忽略该值一段时间后仍然看到这个小/低值，那么网络设备会使用乘法减少将该值确定为当前的RTT值。结果有效的RTT值，可以单独使用或与其他指标结合使用来平衡网络流量。

5. 发明申请

US20100095008A1 Global server load balancing support for private VIP addresses 有权
标题翻译：全局服务器负载平衡支持私人VIP地址
公开(公告)号：US20100095008A1
公开(公告)日：2010-04-15
申请号：US10674627
申请日：2003-09-29
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/16
CPC分类号： H04L29/12066 , H04L29/12367 , H04L61/1511 , H04L61/2514 , H04L67/1002
摘要： A site switch determines the mapping between public and private IP addresses of VIPs configured on the site switch. The site switch then transmits the public IP address, rather than the private IP address, to a load balancing switch that performs the load balancing for network resources accessible via the site switch. This public IP address has also been configured on an authoritative DNS server for which the load balancing switch serves as a proxy. The load balancing switch updates its address records, containing the VIPs configured on the site switch, with the public address of the VIP. When the load balancing switch reorders a DNS reply from the authoritative DNS server for a domain containing the public address, the load balancing switch correctly identifies the IP address as a VIP on the site switch and applies appropriate load balancing metrics to the received IP address.
摘要翻译：站点交换机确定在站点交换机上配置的VIP的公有IP地址和私有IP地址之间的映射。然后，站点交换机将公共IP地址（而不是专用IP地址）发送到负载平衡交换机，该负载平衡交换机可通过站点交换机访问网络资源的负载平衡。此公用IP地址也已在负载平衡交换机用作代理的权威DNS服务器上配置。负载平衡交换机更新其地址记录，其中包含在站点交换机上配置的VIP与VIP的公共地址。当负载平衡交换机从包含公用地址的域的权威DNS服务器重新排序DNS回复时，负载平衡交换机将该IP地址正确地标识为站点交换机上的VIP，并对接收到的IP地址应用适当的负载均衡度量。

6. 发明授权

US08755279B2 Smoothing algorithm for round trip time (RTT) measurements 有权
标题翻译：用于往返时间（RTT）测量的平滑算法
公开(公告)号：US08755279B2
公开(公告)日：2014-06-17
申请号：US13008321
申请日：2011-01-18
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： H04J3/14 , H04L12/26
CPC分类号： H04J3/0682 , H04L43/022 , H04L43/0864 , H04L43/16
摘要： A smoothing algorithm for round trip time (RTT) measurements is provided to a network device to effectively deal with variations or other potential anomalies that may occur in RTT measurements. The algorithm involves: first determining what should be considered a very high or a very small value for a RTT sample. If a new RTT sample is in an acceptable range, then the network device performs a relatively basic smoothing. If the new RTT sample is much higher than a current RTT value, then the network device ignores the value of this RTT sample a few times. If the network device still detects this large value after ignoring that value for some time, then the network device factors this value into the current RTT value using an additive increase. Similarly, if the value of the new RTT sample is much lower than current RTT value, the network device ignores the value of the new RTT sample a few times. If the network device still sees this small/low value after ignoring that value for sometime, then the network device factors this value into the current RTT value using a multiplicative decrease. An effective RTT value results, which can be used singly or in combination with other metrics to load balance network traffic.
摘要翻译：向网络设备提供往返时间（RTT）测量的平滑算法，以有效地处理RTT测量中可能出现的变化或其他潜在异常。该算法包括：首先确定RTT样本应该被认为是非常高或非常小的值。如果新的RTT样本处于可接受范围内，则网络设备执行相对基本的平滑。如果新的RTT样本远高于当前的RTT值，则网络设备忽略该RTT样本的值几次。如果网络设备在忽略该值一段时间后仍然检测到这个大值，则网络设备会使用加法增加将该值确定为当前的RTT值。类似地，如果新的RTT样本的值远低于当前RTT值，则网络设备忽略新的RTT样本的值几次。如果网络设备在忽略该值一段时间后仍然看到这个小/低值，那么网络设备会使用乘法减少将该值确定为当前的RTT值。结果有效的RTT值，可以单独使用或与其他指标结合使用来平衡网络流量。

7. 发明授权

US08280998B2 Configurable geographic prefixes for global server load balancing 有权
标题翻译：可配置的地理前缀，用于全局服务器负载平衡
公开(公告)号：US08280998B2
公开(公告)日：2012-10-02
申请号：US13023292
申请日：2011-02-08
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/173
CPC分类号： H04L29/12792 , H04L29/12933 , H04L61/60 , H04L61/6068 , H04L61/6095 , H04L67/1002 , H04L67/1014 , H04L67/1021
摘要： In a load balancing system, user-configurable geographic prefixes are provided. IP address prefix allocations provided by the Internet Assigned Numbers Authority (IANA) and associated geographic locations are stored in a first, static database in a load balancing switch, along with other possible default geographic location settings. A second, non-static database stores user-configured geographic settings. In particular, the second database stores Internet Protocol (IP) address prefixes and user-specified geographic regions for those prefixes. The specified geographic region can be continent, country, state, city, or other user-defined region. The geographic settings in the second database can override the information in the first database. These geographic entries help determine the geographic location of a client and host IP addresses, and aid in directing the client to a host server that is geographically the closest to that client.
摘要翻译：在负载平衡系统中，提供用户可配置的地理前缀。由互联网号码分配机构（IANA）和相关地理位置提供的IP地址前缀分配与其他可能的默认地理位置设置一起存储在负载平衡交换机中的第一个静态数据库中。第二个非静态数据库存储用户配置的地理设置。特别地，第二数据库存储针对这些前缀的因特网协议（IP）地址前缀和用户指定的地理区域。指定的地理区域可以是大陆，国家，州，城市或其他用户定义的区域。第二个数据库中的地理设置可以覆盖第一个数据库中的信息。这些地理条目有助于确定客户端的地理位置和主机IP地址，并帮助将客户端指向地理位置最接近该客户端的主机服务器。

8. 发明授权

US07949757B2 Host-level policies for global server load balancing 有权
标题翻译：用于全局服务器负载平衡的主机级策略
公开(公告)号：US07949757B2
公开(公告)日：2011-05-24
申请号：US12938232
申请日：2010-11-02
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/173
CPC分类号： H04L67/1002 , H04L29/06 , H04L29/06585 , H04L29/08144 , H04L29/08648 , H04L29/12018 , H04L29/12207 , H04L61/1511 , H04L67/1012 , H04L67/1023 , H04L67/1025
摘要： In a network, a user can configure host-level policies usable for load balancing traffic to servers of a domain. A global server load balancing (GSLB) switch provides load balancing to the servers, and is configured with the GSLB host-level policies. Users can define a host-level policy (alternatively or additionally to a globally applied GSLB policy) and apply the host-level policy to hosts in domains configured on the GSLB switch. Thus, the user can enable different policies for different hosts. This allows the user to have the flexibility to control metrics used for selection of a best address for querying clients, as well as the metric order and additional parameters used in the GSLB process, at the host level.
摘要翻译：在网络中，用户可以配置可用于负载平衡流量到域服务器的主机级策略。全局服务器负载平衡（GSLB）交换机为服务器提供负载平衡，并配置了GSLB主机级策略。用户可以定义主机级策略（或者全局应用的GSLB策略），并将主机级策略应用于GSLB交换机上配置的域中的主机。因此，用户可以为不同的主机启用不同的策略。这允许用户灵活地控制用于选择用于查询客户端的最佳地址的度量以及在主机级别的GSLB过程中使用的度量顺序和附加参数。

9. 发明授权

US07756965B2 Configurable geographic prefixes for global server load balancing 有权
标题翻译：可配置的地理前缀，用于全局服务器负载平衡
公开(公告)号：US07756965B2
公开(公告)日：2010-07-13
申请号：US12353701
申请日：2009-01-14
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/173
CPC分类号： H04L29/12792 , H04L29/12933 , H04L61/60 , H04L61/6068 , H04L61/6095 , H04L67/1002 , H04L67/1014 , H04L67/1021
摘要： In a load balancing system, user-configurable geographic prefixes are provided. IP address prefix allocations provided by the Internet Assigned Numbers Authority (IANA) and associated geographic locations are stored in a first, static database in a load balancing switch, along with other possible default geographic location settings. A second, non-static database stores user-configured geographic settings. In particular, the second database stores Internet Protocol (IP) address prefixes and user-specified geographic regions for those prefixes. The specified geographic region can be continent, country, state, city, or other user-defined region. The geographic settings in the second database can override the information in the first database. These geographic entries help determine the geographic location of a client and host IP addresses, and aid in directing the client to a host server that is geographically the closest to that client.
摘要翻译：在负载平衡系统中，提供用户可配置的地理前缀。互联网号码分配机构（IANA）和相关地理位置提供的IP地址前缀分配与其他可能的默认地理位置设置一起存储在负载平衡交换机中的第一个静态数据库中。第二个非静态数据库存储用户配置的地理设置。特别地，第二数据库存储针对这些前缀的因特网协议（IP）地址前缀和用户指定的地理区域。指定的地理区域可以是大陆，国家，州，城市或其他用户定义的区域。第二个数据库中的地理设置可以覆盖第一个数据库中的信息。这些地理条目有助于确定客户端的地理位置和主机IP地址，并帮助将客户端指向地理位置最接近该客户端的主机服务器。

10. 发明申请

US20100010991A1 HOST-LEVEL POLICIES FOR GLOBAL SERVER LOAD BALANCING 失效
标题翻译：全球服务器负载均衡的主机级政策
公开(公告)号：US20100010991A1
公开(公告)日：2010-01-14
申请号：US12506130
申请日：2009-07-20
申请人： Prajakta S. Joshi
发明人： Prajakta S. Joshi
IPC分类号： G06F15/16 , G06F17/30
CPC分类号： H04L67/1002 , H04L29/06 , H04L29/06585 , H04L29/08144 , H04L29/08648 , H04L29/12018 , H04L29/12207 , H04L61/1511 , H04L67/1012 , H04L67/1023 , H04L67/1025
摘要： In a network, a user can configure host-level policies usable for load balancing traffic to servers of a domain. A global server load balancing (GSLB) switch provides load balancing to the servers, and is configured with the GSLB host-level policies. Users can define a host-level policy (alternatively or additionally to a globally applied GSLB policy) and apply the host-level policy to hosts in domains configured on the GSLB switch. Thus, the user can enable different policies for different hosts. This allows the user to have the flexibility to control metrics used for selection of a best address for querying clients, as well as the metric order and additional parameters used in the GSLB process, at the host level.
摘要翻译：在网络中，用户可以配置可用于负载平衡流量到域服务器的主机级策略。全局服务器负载平衡（GSLB）交换机为服务器提供负载平衡，并配置了GSLB主机级策略。用户可以定义主机级策略（或者全局应用的GSLB策略），并将主机级策略应用于GSLB交换机上配置的域中的主机。因此，用户可以为不同的主机启用不同的策略。这允许用户灵活地控制用于选择用于查询客户端的最佳地址的度量以及在主机级别的GSLB过程中使用的度量顺序和附加参数。

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