公开(公告)号：US20090122705A1

公开(公告)日：2009-05-14

申请号：US11937748

申请日：2007-11-09

申请人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, JR. ,  Timothy Paul Pickett ,  Brian Pulito

发明人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, JR. ,  Timothy Paul Pickett ,  Brian Pulito

IPC分类号： G08C15/00

CPC分类号： H04L47/10 ,  H04L47/22 ,  H04L47/29

摘要： A method, system and computer program product for managing bursts of traffic. A counter, referred to herein as a “frequency counter,” is incremented during those time intervals an overload condition is detected and is decremented during those time intervals an overload condition is not detected. An overload condition may refer to when the number of out-of-dialog messages exceeds a threshold value corresponding to the maximum number of out-of-dialog messages that should be accepted and forwarded to an associated session server. If the count of the frequency counter exceeds some pre-configured value, then traffic that exceeds the threshold for the overload condition is stopped from being sent to the associated session server. Otherwise, traffic that exceeds the threshold for the overload condition is permitted to be sent to the associated session server. By managing bursts of traffic in such a manner, the effective utilization of session servers is improved.

摘要翻译： 一种用于管理流量突发的方法，系统和计算机程序产品。 此处称为“频率计数器”的计数器在检测到过载条件的那些时间间隔期间增加，并且在那些时间间隔期间，未检测到过载条件而递减计数器。 过载条件可以指当对话框内消息的数量超过对应于应该被接受并转发到相关联的会话服务器的对话外消息的最大数量的阈值时。 如果频率计数器的计数超过某个预先配置的值，则超过超载条件阈值的流量将被停止发送到关联的会话服务器。 否则，允许超过过载条件阈值的流量被发送到相关联的会话服务器。 通过以这种方式管理流量突发，提高了会话服务器的有效利用。

公开(公告)号：US07916643B2

公开(公告)日：2011-03-29

申请号：US11937701

申请日：2007-11-09

申请人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, Jr. ,  Timothy Paul Pickett ,  Brian Pulito

发明人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, Jr. ,  Timothy Paul Pickett ,  Brian Pulito

IPC分类号： G01R31/08

CPC分类号： H04L65/80 ,  H04L41/0681 ,  H04L65/1006 ,  H04L65/1046 ,  H04L65/1083 ,  H04L69/40

摘要： A method, system and computer program product for limiting extreme loads and reducing fluctuations in load at session servers. An admission rate controller of a SIP router calculates the “deflator ratio” equal to the average number of in-dialog messages received over a first fixed interval of time divided by the average number of out-of-dialog messages received over a second fixed interval of time. Further, the admission rate controller calculates the “dampening ratio” equal to the maximum number of messages allowed over a period of time divided by the number of messages admitted over a previous time interval. When an overload condition has been detected, the admission rate controller calculates the maximum number of out-of-dialog messages to be sent to its associated SIP server based on the deflator and dampening ratios. In this manner, a smoother transition from the overload condition to the non-overload condition may occur.

摘要翻译： 一种用于限制极限负载并减少会话服务器负载波动的方法，系统和计算机程序产品。 SIP路由器的接纳速率控制器计算等于在第一固定时间间隔内接收的对等话消息的平均数除以在第二固定间隔中接收到的对等外消息的平均数的平均数的“缩小比” 的时间。 进一步地，接收速率控制器计算等于在一段时间内允许的最大消息数除以先前时间间隔允许的消息数的“衰减比”。 当检测到过载状况时，接收速率控制器基于平减指数和衰减比计算出要发送到其相关联的SIP服务器的对话外消息的最大数量。 以这种方式，可能会发生从过载条件到非过载状态的更平滑的过渡。

公开(公告)号：US07808894B2

公开(公告)日：2010-10-05

申请号：US11937748

申请日：2007-11-09

申请人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, Jr. ,  Timothy Paul Pickett ,  Brian Pulito

发明人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, Jr. ,  Timothy Paul Pickett ,  Brian Pulito

IPC分类号： G01R31/08

CPC分类号： H04L47/10 ,  H04L47/22 ,  H04L47/29

摘要： A method, system and computer program product for managing bursts of traffic. A counter, referred to herein as a “frequency counter,” is incremented during those time intervals an overload condition is detected and is decremented during those time intervals an overload condition is not detected. An overload condition may refer to when the number of out-of-dialog messages exceeds a threshold value corresponding to the maximum number of out-of-dialog messages that should be accepted and forwarded to an associated session server. If the count of the frequency counter exceeds some pre-configured value, then traffic that exceeds the threshold for the overload condition is stopped from being sent to the associated session server. Otherwise, traffic that exceeds the threshold for the overload condition is permitted to be sent to the associated session server. By managing bursts of traffic in such a manner, the effective utilization of session servers is improved.

摘要翻译： 一种用于管理流量突发的方法，系统和计算机程序产品。 此处称为“频率计数器”的计数器在检测到过载条件的那些时间间隔期间增加，并且在那些时间间隔期间，未检测到过载条件而递减计数器。 过载条件可以指当对话框内消息的数量超过对应于应该被接受并转发到相关联的会话服务器的对话外消息的最大数量的阈值时。 如果频率计数器的计数超过某个预先配置的值，则超过超载条件阈值的流量将被停止发送到关联的会话服务器。 否则，允许超过过载条件阈值的流量被发送到相关联的会话服务器。 通过以这种方式管理流量突发，提高了会话服务器的有效利用。

公开(公告)号：US20090122704A1

公开(公告)日：2009-05-14

申请号：US11937701

申请日：2007-11-09

申请人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, JR. ,  Timothy Paul Pickett ,  Brian Pulito

发明人： Gary John DeVal ,  Curtis E. Hrischuk ,  Mark Johnson ,  Craig Andrew Lanzen ,  James Winston Lawwill, JR. ,  Timothy Paul Pickett ,  Brian Pulito

IPC分类号： G06F11/00 ,  G01R31/08

CPC分类号： H04L65/80 ,  H04L41/0681 ,  H04L65/1006 ,  H04L65/1046 ,  H04L65/1083 ,  H04L69/40

摘要： A method, system and computer program product for limiting extreme loads and reducing fluctuations in load at session servers. An admission rate controller of a SIP router calculates the “deflator ratio” equal to the average number of in-dialog messages received over a first fixed interval of time divided by the average number of out-of-dialog messages received over a second fixed interval of time. Further, the admission rate controller calculates the “dampening ratio” equal to the maximum number of messages allowed over a period of time divided by the number of messages admitted over a previous time interval. When an overload condition has been detected, the admission rate controller calculates the maximum number of out-of-dialog messages to be sent to its associated SIP server based on the deflator and dampening ratios. In this manner, a smoother transition from the overload condition to the non-overload condition may occur.

摘要翻译： 一种用于限制极限负载并减少会话服务器负载波动的方法，系统和计算机程序产品。 SIP路由器的接纳速率控制器计算等于在第一固定时间间隔内接收的对等话消息的平均数除以在第二固定间隔中接收到的对等外消息的平均数的平均数的“缩小比” 的时间。 进一步地，接收速率控制器计算等于在一段时间内允许的最大消息数除以先前时间间隔允许的消息数的“衰减比”。 当检测到过载状况时，接收速率控制器基于平减指数和衰减比计算出要发送到其相关联的SIP服务器的对话外消息的最大数量。 以这种方式，可能会发生从过载条件到非过载状态的更平滑的过渡。