CN106230649A - session resource management method and device - Google Patents
session resource management method and device Download PDFInfo
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- CN106230649A CN106230649A CN201610834921.7A CN201610834921A CN106230649A CN 106230649 A CN106230649 A CN 106230649A CN 201610834921 A CN201610834921 A CN 201610834921A CN 106230649 A CN106230649 A CN 106230649A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/142—Network analysis or design using statistical or mathematical methods
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0882—Utilisation of link capacity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/16—Threshold monitoring
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- 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
- H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
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Abstract
The application provides a kind of session resource management method and device, and described method includes: when the Session Resources occupancy of the network equipment reaches default first threshold, adds up the Session Resources occupancy that each initiation session IP address is corresponding；When the Session Resources occupancy of the network equipment reaches Second Threshold, based on the Session Resources occupancy that the described each initiation session IP address counted is corresponding, determine the IP address (IPmax) that Session Resources occupancy is maximum；Wherein, described Second Threshold is more than described first threshold；Limit or reduce IPmax and described Session Resources is taken, to accelerate this equipment recovery Session Resources.Use the embodiment of the present application, the service process performance of the network equipment can be effectively improved.
Description
Technical field
The application relates to computer communication field, particularly relates to session resource management method and device.
Background technology
Due to the continuous growth of the data traffic on various networks, the performance requirement of the network equipment constantly promotes.The opposing party
Face, along with such as safety and access control the appearance in interior various application demands, the performance requirement for the network equipment enters
One step improves.How the existing network equipment processes resource carry out reasonable management and reach the purpose of performance optimization and be always industry
The direction of constant quest.
Summary of the invention
In view of this, the application provides a kind of session resource management method and device, in order to improve the business of the network equipment
Process performance.
Specifically, the application is achieved by the following technical solution:
First aspect according to the embodiment of the present application, it is provided that a kind of session resource management method, is applied to the network equipment, institute
The method of stating includes:
When the Session Resources occupancy of the network equipment reaches default first threshold, add up each initiation session IP address pair
The Session Resources occupancy answered；
When the Session Resources occupancy of the network equipment reaches Second Threshold, based on the described each initiation session IP counted
The Session Resources occupancy that address is corresponding, determines the IP address (IPmax) that Session Resources occupancy is maximum；Wherein, described second
Threshold value is more than described first threshold；
Limit or reduce IPmax and described Session Resources is taken, to accelerate this equipment recovery Session Resources.
Second aspect according to the embodiment of the present application, it is provided that a kind of session resource management device, described device includes:
Statistic unit, for when the Session Resources occupancy of the network equipment reaches default first threshold, adds up each
Play the Session Resources occupancy that session IP address is corresponding；
Determine unit, for when the Session Resources occupancy of the network equipment reaches Second Threshold, based on the institute counted
State the Session Resources occupancy that each initiation session IP address is corresponding, determine the IP address (IPmax) that Session Resources occupancy is maximum；
Wherein, described Second Threshold is more than described first threshold；
Limiting unit, takies described Session Resources for limiting or reducing IPmax, to accelerate the recovery session of this equipment
Resource.
The embodiment of the present application proposes a kind of method of new session resource management, and the network equipment is by reclaiming Session Resources
The improvement of mechanism, when the Session Resources occupancy of the network equipment reaches first threshold, the network equipment can be added up each and initiate
The Session Resources occupancy corresponding to IP address of session；When the Session Resources occupancy of the network equipment reaches Second Threshold,
The Session Resources occupancy corresponding to IP address of session can be initiated based on each counted, obtain Session Resources occupancy
Big IP address (IPmax)；The network equipment limits or reduces IPmax and takies described Session Resources, returns accelerating this equipment
Receive Session Resources.Wherein, described Second Threshold is more than described first threshold；
Due to when the Session Resources occupancy of this network equipment is excessive, the network equipment can to Session Resources occupancy
Big IP address limits, and discharges its shared Session Resources so that Session Resources can the most rationally reclaim.Cause
This, can be effectively improved the service process performance of equipment.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of session resource management method shown in the application one exemplary embodiment；
Fig. 2 is the hardware configuration of a kind of session resource management device place equipment shown in the application one exemplary embodiment
Figure；
Fig. 3 is the block diagram of a kind of session resource management device shown in the application one exemplary embodiment.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they are only with the most appended
The example of the apparatus and method that some aspects that described in detail in claims, the application are consistent.
It is only merely for describing the purpose of specific embodiment at term used in this application, and is not intended to be limiting the application.
" a kind of ", " described " and " being somebody's turn to do " of singulative used in the application and appended claims is also intended to include majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wraps
Any or all containing one or more projects of listing being associated may combination.
Although should be appreciated that in the application possible employing term first, second, third, etc. to describe various information, but this
A little information should not necessarily be limited by these terms.These terms are only used for same type of information is distinguished from each other out.Such as, without departing from
In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depend on linguistic context, word as used in this " if " can be construed to " ... time " or " when ...
Time " or " in response to determining ".
Session Resources is the valuable source of the network equipment, and it may decide that the service process performance of this network equipment, network
Equipment needs to distribute considerable CPU and the process resource of internal memory for substantial amounts of session, and these process resource in this application
It is referred to as Session Resources.When Session Resources occupancy is too high, the service process performance of the network equipment may decline.In reality
In the application of border, above-mentioned Session Resources generally includes newly-built Session Resources and concurrent Session Resources.
Newly-built Session Resources is the newly-built resource shared by newly-built session with session initiator of the network equipment, relies primarily on
In the CPU of the network equipment, it is processed.Under normal circumstances, newly-built Session Resources can be characterized by the speed of newly-built session
Occupancy, newly-built session the most per second 100.When the newly-built speed of the network equipment meets or exceeds this network equipment design rule
During the newly-built speed of maximum in lattice, CPU can be caused to be continuously in high-end trim, have a strong impact on the CPU process performance to business.
Concurrent Session Resources is that the network equipment keeps the process resource shared by bipartite session with session initiator,
For changing an angle, concurrent Session Resources refers to that those sessions having built up need the process resource taken, and these process
Resource major part is the memory source of the network equipment.Under normal circumstances, concurrent Session Resources can be characterized with concurrent session number
Occupancy.When developer or network manager rationally arrange concurrent session aging the most well according to service needed
Between time, the memory source of the network equipment can be made to be taken by substantial amounts of useless session, cause memory source to waste, and then affect net
The performance of network equipment.
And in embodiments of the present invention, the network equipment can be by detecting the resources occupation rate of self, when the network equipment
When resources occupation rate reaches first threshold, the Session Resources occupancy that each IP address of session setup side is corresponding can be added up,
And can limit when the Session Resources occupancy of the network equipment reaches Second Threshold or reduce Session Resources occupancy maximum
IP address this network equipment Session Resources is taken so that the Session Resources of equipment can the most reasonably reclaim, can
Effectively to limit or to reduce the Session Resources occupancy of this network equipment, improve the service process performance of the network equipment.
See the flow chart that Fig. 1, Fig. 1 are a kind of session resource management methods shown in the application one exemplary embodiment,
The method that described Session Resources reclaims is applied to the network equipment, specifically includes step as follows:
Step 101: when the Session Resources occupancy of the network equipment reaches default first threshold, add up each initiation session
The Session Resources occupancy that IP address is corresponding；
In embodiments of the present invention, the network equipment can even be close to real-time mode unite with shorter measurement period
Count its Session Resources occupancy, when the Session Resources occupancy of this network equipment reaches first threshold, can be added up each
Play the Session Resources occupancy corresponding to IP address of session.
For the statistics of the Session Resources occupancy of the network equipment, can complete based on following steps.
When Session Resources is newly-built Session Resources, it is generally the case that characterize the type session to session with newly-built speed
Resource take situation.When the Session Resources occupancy of the network equipment is added up, a relatively ankle meter week can be set
Phase, the number of all of newly-built session in adding up this cycle, and represent newly-built speed in this this cycle with this.
Owing to the calculating of newly-built speed is based on measurement period, so when measurement period arranges long, may nothing
Method accurately represents the newly-built speed of each period interior in this cycle.Such as, it is assumed that measurement period is 10 seconds, in front 5s, newly-built meeting
Words number is 1000, and newly-built session number is 100 in latter five seconds, and based on above-mentioned statistical method, this is each in 10 seconds
The newly-built speed in individual moment is 110/s, and the newly-built speed of this 110/s just cannot characterize the newly-built speed of latter 5 seconds exactly
Rate.And measurement period arranges too low, performance of network equipments possibly cannot be supported for crossing short-period statistics.
In actual applications, for the setting of the measurement period of newly-built speed, typically with the time period of one second or lower
For the cycle, and for the measurement period less than a second, the performance being typically based on the network equipment determines.Certainly, merely just
Exemplary, the setting of this measurement period also performance with the network equipment has relation, and developer can be according to distinct device
Performance select different measurement periods.
When Session Resources is concurrent Session Resources, it is generally the case that characterize such with the concurrent session number in each moment
The session of type takies situation to Session Resources.When the Session Resources occupancy of the network equipment is added up, the network equipment
Based on the sampling period arranged, the number of concurrent session can be added up.The number of the concurrent session counted can be with table
Show the concurrent session number in a moment.In the described sampling period, represent the time interval of the number of twice concurrent session of statistics.Ratio
As, it is assumed that the sampling period is 1s, then the network equipment can add up the number of concurrent session now when 0 moment, 1s this
The number of now concurrent session can be added up again during the moment.
For the setting in sampling period, owing to the setting in sampling period can be limited by equipment performance, work as the sampling period
Time too small, the performance of the network equipment possibly cannot support the sampling in too short sampling period.And the setting in sampling period excessive time, then
It is possible that the inaccurate situation of collection result.In actual applications, generally will be set as in the sampling period one second or lower
Time period, and for the sampling period less than one second, the performance being typically based on the network equipment determines.Certainly, here only
Being exemplary, the setting in this sampling period also performance with the network equipment has relation, and developer can set according to difference
Standby performance selects the different sampling periods.
The network equipment can by above-mentioned statistical method be close to real-time by the way of add up the Session Resources of this network equipment
Occupancy, after the Session Resources occupancy network equipment being detected exceedes first threshold, can add up the IP of each initiation session
The occupancy of the Session Resources that address is corresponding.
Here, what deserves to be explained is, above-mentioned first threshold is the IP address correspondence that the network equipment adds up each initiation session
The trigger value of Session Resources occupancy.Generally indicate that such session provides when Session Resources occupancy reaches first threshold
The occupancy in source is the most too high, but transships, still without arriving the network equipment, the situation of other business of cannot processing completely.Now net
The residue of network equipment processes resource and remains able to support the process of above-mentioned statistical work.First threshold arranges and too high may cause net
Network equipment remaining process resource cannot complete statistical work in time, causes subsequent step 102 etc. to process in time；Arranged
Low possible shortage practical significance.In actual use, developer can make rational planning for according to the actual performance of the network equipment
The size of first threshold, for some high performance network equipments, first threshold can properly increase, for some performances
The network equipment on the weak side, first threshold can suitably reduce.
In the present embodiment, the network equipment can add up in the following way initiate session IP address corresponding session money
Source occupancy.
When above-mentioned Session Resources is newly-built Session Resources, it is generally the case that characterize the type session pair with newly-built speed
Session Resources take situation.The network equipment can obtain by receiving the newly-built conversation request message that session setup side sends
Its source IP address carried, and this IP address is carried out record.The network equipment can pass through the newly-built of above-mentioned statistics network equipment
The method of speed carrys out the newly-built speed of each IP address initiating session of statistic record, in other words, for initiating the IP of session
The statistics of the newly-built speed of address, the statistical method of statistical method speed newly-built with the above-mentioned network equipment is identical, only adds up
Unit is no longer with the network equipment as unit, but is a unit with each IP address initiating session.
When above-mentioned Session Resources is concurrent Session Resources, when Session Resources is concurrent Session Resources, it is generally the case that
The session characterizing the type with the concurrent session number in each moment takies situation to Session Resources.The network equipment can be by connecing
Receive the session message that session setup side sends, obtain its source IP address carried, and this IP address is carried out record.The network equipment
The each of statistic record can be carried out by the method for the concurrent session number of above-mentioned statistics network equipment and initiate the IP address of session also
Sending out session number, in other words, for initiating the statistics of the concurrent session number of the IP address of session, statistical method sets with above-mentioned network
The statistical method of standby concurrent session number is identical, and only statistic unit is no longer with the network equipment as unit, but initiates with each
The IP address of session is a unit.
Step 102: when the Session Resources occupancy of the network equipment reaches Second Threshold, based on described each counted
Play the Session Resources occupancy that session IP address is corresponding, determine the IP address (IPmax) that Session Resources occupancy is maximum；Wherein,
Described Second Threshold is more than described first threshold；
Step 103: limit or reduce IPmax and take described Session Resources, reclaims session money accelerating this equipment
Source.
In the present embodiment, the network equipment will by the service process performance of next " early warning " this network equipment of first threshold
It is affected or " early warning " this network equipment can suffer from attacking (generally, when the network equipment is attacked, to this
The network equipment is initiated the Session Resources shared by IP address of session and is significantly larger than the meeting that remaining IP address initiating session takies
Words resource) and the network equipment when its resources occupation rate reaches Second Threshold, determine IPmax, and limit or reduce this IPmax
Shared Session Resources, reduces or limits the Session Resources occupancy of the network equipment with this.
The present embodiment does not use a threshold value trigger statistics simultaneously and limit operation, and uses two threshold values to set respectively
Fixed statistics and limit or reduce the trigger value of operation, its object is to can also be preferably while optimizing equipment performance
The regular traffic contact of protection session setup side.
Trigger statistics with a threshold value simultaneously and limit operation, being exactly in other words, when the Session Resources of the network equipment
When occupancy reaches this threshold value, the network equipment can add up the Session Resources occupancy that the IP address of each initiation session is corresponding, and
Limit the Session Resources occupancy of IPmax.
If trigger statistics with a threshold value and limit operation, then must take into account threshold value sets when simultaneously simultaneously
Statistical operation and restriction or reduce operation two aspect factors, but when taking into account two aspect factors and arranging threshold value simultaneously, tend not to
Reaching the effect of " perfect ", but " compromise " of two aspect factors, this means that the setting of threshold value is not the most accurate.One side
Face, if this threshold value arranges excessive, the network equipment may cannot be carried out statistics and restriction operation the most " is paralysed ", the opposing party
Face, if this threshold value arranges too small, IPmax will be limited or reduce operation by the network equipment in advance, as sent by IPmax
Packet loss, this is it is possible to there will be the situation unnecessarily abandoning session setup side's message, thus to a certain extent
Have impact on the regular traffic contact of session setup side.
And when using two threshold values respectively to triggering statistical operation and restriction or reducing operation, when two threshold values set
Wait, statistical operation and restriction can be considered respectively or reduce the factor of operation.
Wherein, when the resources occupation rate of the network equipment reaches Second Threshold, generally indicating that, the network equipment is without more
Session is processed by resource, and has had a strong impact on the traffic handing capacity of the network equipment.If Second Threshold arranges too low,
The resources occupation rate being likely to occur the network equipment does not the most arrive " bottleneck ", just limits IPmax or reduces operation, than
As IPmax is sent the packet loss etc. of coming, it is possible to affect the regular traffic of session setup side.If but Second Threshold is arranged
Too high, the resources occupation rate of the network equipment may also be not reaching to Second Threshold, and this network equipment has been paralysed.So,
In actual application, Second Threshold rationally can be set by developer according to the performance of the network equipment and practical situation.
Additionally, the setting of Second Threshold can be more than first threshold.First threshold is low relative to Second Threshold, it is meant that the
When one threshold value arrives, the process resource of equipment still has certain surplus, can support to add up this behaviour bigger to resource consumption
Make；When Second Threshold arrives when, now surplus is extremely limited, but due to limit or abandon operation fairly simple, to place
Reason resource consumption is the lowest, and therefore the remaining minimal amount of process resource of equipment utilization still can complete these operations.Thus may be used
See the application compared with general processing mode, higher to the reasonability of session resource management.
What deserves to be explained is, in the present embodiment, the first threshold corresponding to dissimilar Session Resources is different；And/or
Second Threshold corresponding to dissimilar Session Resources is different.
In view of newly-built Session Resources and itself respective feature of concurrent Session Resources and the performance of this network equipment,
Furtherly, the newly-built speed of maximum and the concurrent session number of maximum that each network equipment can allow can be different, so
First threshold and Second Threshold set when, one is achieved in that, the first threshold of newly-built Session Resources with concurrently can
The first threshold of words resource can also be different when setting, but the Second Threshold of newly-built Session Resources and concurrent Session Resources
Second Threshold set time can be identical.
Another kind is achieved in that, the Second Threshold of the Second Threshold of newly-built session and concurrent Session Resources can when setting
Being different, but the first threshold of the first threshold of newly-built Session Resources and concurrent Session Resources can also be phase when setting
With.Another kind is achieved in that, the first threshold of the first threshold of newly-built Session Resources and concurrent Session Resources is when setting
Can also be different, and, the Second Threshold of the Second Threshold of newly-built session and concurrent Session Resources can also when setting
It is different.
In the present embodiment, after the network equipment determines IPmax, can limit or reduce this IPmax to Session Resources
Take, concrete mode is as follows:
When Session Resources is newly-built Session Resources, the packet loss that this IPmax can be sent by the network equipment.And when being somebody's turn to do
When Session Resources is Session Resources based on TCP, the network equipment is possible not only to the packet loss sent by this IPmax.All right
RESET message is sent further, to terminate the TCP connection between the session setup side corresponding for IPmax with this to this IPmax.
When being the newly-built Session Resources being not based on TCP for Session Resources, such as newly-built Session Resources based on UDP, often
Retransmission mechanism can be provided with.When, after the packet loss that this IPmax is sent by the network equipment, this IPmax does not receives in the given time
After response message, then can start Retransmission timeout mechanism, resend this message, and work as subsequent network device performance recovery and stop
After only to the restriction of this IPmax, the network equipment can receive the message that this IPmax sends, and locates this message normally
Reason, therefore can ensure that the normal business contact in session setup side.
Being newly-built Session Resources based on TCP for Session Resources, the network equipment sends RESET message to this IPmax, main
If in order to terminate the TCP semi-connection state between the session setup side corresponding for IPmax with this, the purpose of do so is to protect
Protect the regular traffic contact of session setup side.If not terminating the semi-connection state with it, then this IPmax still can be to present networks
Equipment sends message, and present networks equipment sends, for this IPmax, the message come and can only carry out discard processing, and this will affect this
The normal business contact in session setup side corresponding for IPmax.And in this example, the network equipment passes through RESET message, terminate and be somebody's turn to do
The TCP of session setup side connects, and session setup side can be promoted to select new link to carry out business contact.
As can be seen here, use the present embodiment, be possible not only to optimize the performance of present networks equipment, it is also possible to protection session setup
The regular traffic contact of side.
When Session Resources is concurrent Session Resources, a kind of optional processing mode of the network equipment is based on default aging
Duration, by concurrent conversation aging corresponding for this IPmax.Such as, network developer can this IPmax respective session aging time
Length is set to 5s, and after 5s, the network equipment can be by all concurrent conversation aging corresponding for this IPmax.
Another kind of optional processing mode is that the network equipment can travel through Session Resources table, determines corresponding concurrent of IPmax
Session Resources, and determine the last use time of each concurrent Session Resources corresponding for IPmax according to record in Session Resources table,
The last use time of default time range with each session is compared and determines do not occur in preset time range
The concurrent session of data interaction, and it is the most aging.For example, it is assumed that the time range preset is 30min, current time is
13:30, then the network equipment can be the most aging by the last use time concurrent session before 13:00 corresponding for this IPmax.
Another kind of optional processing mode is, it is also possible to uses above two mode simultaneously, limits or reduce this IPmax
Session Resources is taken.For example, it is assumed that a length of 5s when presetting aging, default time range is 30min, and current time is
13:30.When using above two method simultaneously, in order to accelerate the recovery to network equipment Session Resources, the network equipment is permissible
First use above-mentioned second method, by the most aging for the last use time concurrent session before 13:00 corresponding for IPmax,
In conjunction with first method, based on default ageing time 5s, by the last use time corresponding for IPmax at 13:00 to 13 after 5s:
Concurrent conversation aging between 30.
When Session Resources is concurrent Session Resources based on TCP, the network equipment is possible not only to take aforesaid way to limit
Or reduce concurrent Session Resources occupancy corresponding to IPmax, it is also possible to the most respectively to initiate session IPmax and with
Opposite end that IPmax conversates sends TCP RESET message, terminate IPmax and and the opposite end that conversates of this IPmax between
TCP connects.The purpose of do so and above-mentioned Session Resources are newly-built Session Resources, send the mesh of unidirectional RESET message to IPmax
Consistent, i.e. protection session setup side regular traffic contact, simultaneously optimize present networks equipment service process performance, here,
Repeat no more.
In the present embodiment, through the above-mentioned Session Resources occupancy to IPmax restriction or reduce operation after, when
When Session Resources occupancy corresponding for IPmax is less than three threshold values, the network equipment can stop the restriction to this IPmax or fall
Reduction process, it is allowed to the newly-built session of this IPmax.
It should be noted that the setting of the 3rd threshold value is the Session Resources occupancy for IPmax rather than for network
The Session Resources rate of equipment.In other words, it is reduced under the 3rd threshold value when Session Resources occupancy corresponding for IPmax
Time, can not illustrate that the Session Resources occupancy of the network equipment can be reduced under first threshold.When the session that IPmax is corresponding
When resources occupation rate is reduced under the 3rd threshold value, if the Session Resources occupancy of the network equipment is still above first threshold,
Then can continue the statistic processes of Session Resources occupancy corresponding to the above-mentioned IP address to initiating session, and at the network equipment
When Session Resources occupancy reaches Second Threshold, determine IPmax now, and the Session Resources taking it limits or
Reduce operation.
When setting three threshold values, can be set according to the particular use of the present embodiment.Such as, as the present embodiment master
When being used for preventing from attacking, the 3rd threshold value can set less.Because when this equipment suffers network attack, launching a offensive
The Session Resources of the network equipment that IP takies is far longer than the Session Resources that other IP take, and in other words, this is launched a offensive
IP address occupies most of Session Resources of the network equipment.Such as, the newly-built speed of the IP address launched a offensive is per second 50,000
Individual, and the newly-built speed of other IP addresses is only 1000 per second, now, setting three threshold values when, be by the 3rd threshold
Value is configured to the least, reduces rapidly this IP address launched a offensive with this and accounts for present networks equipment session resource
With.
And if the present embodiment is mainly used in management and takies the Session Resources of this equipment, then the 3rd threshold value for regular traffic
Setting can be suitably big.Because, when regular traffic takies the Session Resources of this equipment, each IP address initiating session
The Session Resources taken is generally in a level, and such as, the newly-built speed that IP1 takies is 1000 per second, IP2's
Newly-built speed is 980 per second, and the order of magnitude of IP3 is 1500 per second.Now, it is possible to suitably by the setting of the 3rd threshold value
Ground is big, suitably reduces the Session Resources occupancy that each IP address is corresponding with this.
By above example, the network equipment is by the improvement to session resource management mechanism, when the network equipment
When Session Resources occupancy reaches first threshold, the network equipment can add up the meeting corresponding to IP address of each session setup side
Words resources occupation rate；When the Session Resources occupancy of the network equipment reaches Second Threshold, can be based on each meeting counted
Talk about the Session Resources occupancy that the IP address of initiator is corresponding, obtain the IP address that Session Resources occupancy is maximum；When session provides
When source is newly-built Session Resources, the message that the IP address maximum from this Session Resources occupancy receives can be lost by the network equipment
Abandon.When above-mentioned Session Resources is concurrent Session Resources, described session can be provided by the network equipment based on default ageing time
The concurrent conversation aging that occupancy maximum IP address in source is corresponding, or by corresponding for IP address maximum for this Session Resources occupancy
The concurrent conversation aging that data interaction does not occurs in preset time range.
On the one hand, owing to when the Session Resources occupancy of the equipment that this network equipment monitors itself is excessive, network sets
For the IP address that Session Resources occupancy is maximum being limited, discharge its shared Session Resources so that session provides
Source can reasonably be recycled.
On the other hand, can be reduced it in different ways for different Session Resources due to the above-mentioned network equipment
Resources occupation rate, accelerates the network equipment recycling to Session Resources.Therefore, it can be effectively improved at the business of equipment
Rationality energy.
Below in conjunction with the application scenarios that some are concrete, the application scheme is illustrated:
Scene one:
Be newly-built Session Resources with Session Resources below, Session Resources occupancy as a example by the scene that newly-built speed characterizes,
Said method is described in detail.
It is assumed that the network equipment and N number of session setup side have carried out session interaction.The IP address of this N number of session setup side is divided
Wei IP1, IP2, IP3 to IPN.The newly-built speed of maximum that the CPU of the network equipment can allow is 500,000 per second, it is assumed that first
Threshold value is 350,000 per second, and Second Threshold is 450,000 per second, and the 3rd threshold value is corresponding newly-built of current maximum newly-built speed IP
The 80% of speed.
When the newly-built speed that the network equipment checks this equipment reaches 350,000 per second, can be added up each and initiate session
Newly-built speed corresponding to IP address.
In the newly-built speed of statistics network equipment with when initiating the newly-built speed of each IP address of session, can statistics week
Phase is set as 1s, the newly-built session number that the newly-built session number of the network equipment in statistics 1s is corresponding with the IP of each initiation session.
When the newly-built speed that this network equipment detects this equipment reaches 450,000 per second, IP1 can be based respectively on extremely
The newly-built speed that IPN address is corresponding, obtains the IP address of maximum newly-built speed.
Assuming in IP1, IP2, IP3 to IPN, corresponding for IP3 newly-built speed is maximum, for per second 20000 then this network set
For getting IP3.
After getting IP3, this network equipment can limit or reduce the newly-built speed that this IP3 address is corresponding.Specifically
Ground mode of operation is as follows:
The newly-built session packet loss that the network equipment can will receive from this IP3 address.
Or, when the corresponding Session Resources of this IP3 address is newly-built Session Resources based on TCP, the network equipment is not
The newly-built session packet loss that only can will receive from this IP3 address, it is also possible to the session setup side corresponding to this IP3 address is sent out
Send RESET message, terminate to be connected with the TCP of this session setup side.
After above-mentioned restriction or reducing operation, when the network equipment detects the newly-built speed that above-mentioned IP3 address is corresponding
Less than during three threshold values time (160,000,000 per second), the restriction of this IP3 address can be released, it is allowed to this IP3 address is set up
New session.
If after stopping the restriction to this IP3 address, when the newly-built speed of the network equipment is still above 350,000 per second,
Then repeat said process, limit or newly-built Session Resources is taken by the IP address that reduces current newly-built speed maximum, here,
Repeat no more.
By above example, the network equipment can detect the newly-built speed of equipment itself, new when the network equipment
Building speed when reaching first threshold, the network equipment can add up the newly-built speed corresponding to the IP address of each session setup side；
When the newly-built speed of the network equipment reaches Second Threshold, can IP address based on each the session setup side counted correspondence
Newly-built speed, obtain the IP address that newly-built speed is maximum；The network equipment can limit or reduce this newly-built speed maximum
Described Session Resources is taken by IP address.
Owing to when the newly-built speed of this network equipment is excessive, the network equipment can carry out the IP ground maximum to newly-built speed
Location limits or reduction processes, and discharges its shared Session Resources so that Session Resources can the most rationally recycle.Cause
This, can be effectively improved the service process performance of equipment.
Scene two:
Being concurrent Session Resources with Session Resources below, the scene that Session Resources occupancy characterizes with concurrent session number is
Example, is described in detail said method.
It is assumed that the network equipment and N number of session setup side have carried out session interaction.The IP address of this N number of session setup side is divided
Wei IP1, IP2, IP3 to IPN.The maximum concurrent session number that the internal memory of the network equipment can allow is 1,000,000, it is assumed that first
Threshold value is 700,000, and Second Threshold is 900,000, and the 3rd threshold value is the concurrent session number that current maximum concurrent session number IP is corresponding
80%.Default ageing time is 5s, and preset time range is 30 minutes.
When the concurrent session number that the network equipment checks this equipment reaches 700,000, each session setup side can be added up
Concurrent session number corresponding to IP address.
In the concurrent session value of statistics network equipment with when initiating the concurrent session value of each IP address of session, can will adopt
Sample cycle set is 1s, and the concurrent session number with this sampling period statistics network equipment is corresponding also with the IP of each initiation session
Send out session number.
When the concurrent session number that this network equipment checks this equipment reaches 900,000, IP1 to IPN can be based respectively on
The concurrent session number that address is corresponding, obtains the IP address of maximum concurrent session number.Assume in IP1, IP2, IP3 to IPN, IP3 pair
The newly-built speed answered is maximum, and for 50000 per second, then this network equipment can get IP3.
After getting IP3 address, a kind of optional processing mode of the network equipment is based on default ageing time 5s, at 5s
After by concurrent conversation aging corresponding for IP3.
Another kind of optional processing mode is that network equipment can travel through Session Resources table, based on concurrent Session Resources table
The use time that corresponding for the IP3 Session Resources of middle record is last, determine in preset time range corresponding for IP3 (i.e. 30 minutes)
The concurrent session of data interaction does not occurs, and by this conversation aging.Assume that current time is 13:30, then the network equipment can be by
The last use time concurrent session before 13:00 corresponding for this IPmax is the most aging.
Another kind of optional processing mode is, the network equipment can to use above two mode simultaneously, limit or
Reduce IP3 address taking the concurrent Session Resources of its correspondence.The network equipment can first use above-mentioned second method, will
The last use time concurrent session before 13:00 corresponding for IPmax is the most aging, in conjunction with first method, based in advance
If ageing time 5s, by the last use time concurrent conversation aging between 13:00 to 13:30 corresponding for IPmax after 5s.
When session corresponding for IP3 is concurrent session based on TCP, this network equipment is possible not only to based on aforesaid operations,
By the concurrent conversation aging of its correspondence, it is also possible to send TCP RESET message to IPmax and the opposite end conversated with IPmax,
The TCP terminated between this IPmax and the opposite end conversated with this IPmax is connected.
After above-mentioned restriction or reducing operation, when detecting that concurrent session number corresponding to above-mentioned IP3 address is less than
During three threshold values time (40000 per second), the restriction of this IP3 address can be released, it is allowed to new meeting is set up in this IP3 address
Words.
If after releasing the restriction to this IP3 address, the concurrent session number of the network equipment is still above 700,000 per second
Time, then repeat said process, limit or concurrent Session Resources is taken by the IP address that reduces current concurrent session number maximum,
Here, repeat no more.
By above example, the network equipment can detect the concurrent session number of self, concurrent when the network equipment
When session number reaches first threshold, the network equipment can add up each concurrent session number corresponding to IP address initiating session；
When the concurrent session number of the network equipment reaches Second Threshold, can IP address pair based on each the session setup side counted
The concurrent session number answered, obtains the IP address that concurrent session number is maximum；The network equipment can limit or reduce this concurrent session
Described Session Resources is taken by the IP address of number maximum.
Owing to when the concurrent session number of this network equipment is excessive, the network equipment can be to the IP ground of concurrent session number maximum
Location limits, and discharges its shared Session Resources so that Session Resources can reasonably be recycled.Therefore, may be used
To be effectively improved the service process performance of equipment.
Corresponding with the embodiment of aforementioned session resource management method, present invention also provides session resource management device
Embodiment.
The embodiment of the application session resource management device can be applied on network devices.Device embodiment can be passed through
Software realizes, it is also possible to realize by the way of hardware or software and hardware combining.As a example by implemented in software, as a logic meaning
Device in justice, is that the processor by its place network equipment is by computer program instructions corresponding in nonvolatile memory
Read and internal memory runs formation.For hardware view, as in figure 2 it is shown, be the application session resource management device place
A kind of hardware structure diagram of the network equipment, except the processor shown in Fig. 2, internal memory, network interface and nonvolatile memory
Outside, in embodiment, the network equipment at device place is generally according to the actual functional capability of this session management, it is also possible to include that other are hard
Part, repeats no more this.
Refer to the block diagram that Fig. 3, Fig. 3 are a kind of session resource management devices shown in the application one exemplary embodiment.
Described device includes: statistical module 310, determines module 320 and limits module 330.
Statistical module 310, for when the Session Resources occupancy of the network equipment reaches default first threshold, statistics is each
Initiate the Session Resources occupancy that session IP address is corresponding；
Determine module 320, for when the Session Resources occupancy of the network equipment reaches Second Threshold, based on count
The Session Resources occupancy that described each initiation session IP address is corresponding, determines the IP address that Session Resources occupancy is maximum
(IPmax)；Wherein, described Second Threshold is more than described first threshold；
Limit module 330, for limiting or reducing IPmax, described Session Resources is taken, to accelerate the recovery of this equipment
Session Resources.
In an optional implementation, described restriction module, including: first abandons submodule, for when described meeting
When words resource is newly-built Session Resources, the packet loss that will send from described IPmax.
In another optional implementation, described restriction module, including: second abandons submodule, for when described
When Session Resources is newly-built Session Resources based on TCP, the packet loss that IPmax is sent；First send submodule, for
IPmax sends TCP RESET message.
In another optional implementation, described restriction module, including: the first aging submodule, for when described
When Session Resources is concurrent Session Resources, based on default aging duration, by concurrent conversation aging corresponding for described IPmax；With/
Or, the second aging submodule, it is used for old for the concurrent session that data interaction does not occurs in preset time range corresponding for IPmax
Change.
In another optional implementation, described second aging submodule, including: Traversal Unit, for traversal also
Send out Session Resources table, determine concurrent Session Resources corresponding to IPmax；Determine unit, for remembering based in concurrent Session Resources table
Record each concurrent Session Resources corresponding for IPmax finally use the time, determine that data do not occur in preset time range
Mutual concurrent session；By described, aged cell, for not occurring that in preset time range the concurrent session of data interaction is old
Change.
In another optional implementation, described restriction module, including: second send submodule, for respectively to
IPmax and the opposite end conversated with this IPmax send TCP RESET message, to terminate described IPmax and to enter with this IPmax
TCP between the opposite end of guild's words connects.
In another optional implementation, described device also includes:
Stopping modular 340, when Session Resources occupancy corresponding for described IPmax is less than three threshold values, stops
The restriction of IPmax or reduction process；Wherein, described 3rd threshold value is less than Second Threshold.
In another optional implementation, the first threshold corresponding to dissimilar Session Resources is different；And/or not
Different with the Second Threshold corresponding to type Session Resources.
In said apparatus, the function of unit and the process that realizes of effect specifically refer to corresponding step in said method
Realize process, do not repeat them here.
For device embodiment, owing to it corresponds essentially to embodiment of the method, so relevant part sees method in fact
The part executing example illustrates.Device embodiment described above is only schematically, wherein said as separating component
The unit illustrated can be or may not be physically separate, and the parts shown as unit can be or can also
It not physical location, i.e. may be located at a place, or can also be distributed on multiple NE.Can be according to reality
Need to select some or all of module therein to realize the purpose of the application scheme.Those of ordinary skill in the art are not paying
In the case of going out creative work, i.e. it is appreciated that and implements.
The foregoing is only the preferred embodiment of the application, not in order to limit the application, all essences in the application
Within god and principle, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the application protection.
Claims (16)
1. a session resource management method, is applied to the network equipment, it is characterised in that described method includes:
When the Session Resources occupancy of the network equipment reaches default first threshold, add up each initiation session IP address corresponding
Session Resources occupancy；
When the Session Resources occupancy of the network equipment reaches Second Threshold, based on the described each initiation session IP address counted
Corresponding Session Resources occupancy, determines the IP address (IPmax) that Session Resources occupancy is maximum；Wherein, described Second Threshold
More than described first threshold；
Limit or reduce IPmax and described Session Resources is taken, to accelerate this equipment recovery Session Resources.
Method the most according to claim 1, it is characterised in that described restriction or reduction IPmax are to described Session Resources
Take, including:
When described Session Resources is newly-built Session Resources, the packet loss that will send from described IPmax.
Method the most according to claim 1, it is characterised in that described restriction or reduction IPmax are to described Session Resources
Take, including:
When described Session Resources is newly-built Session Resources based on TCP, the packet loss that IPmax is sent；
TCP RESET message is sent to IPmax.
Method the most according to claim 1, it is characterised in that described restriction or reduction IPmax are to described Session Resources
Take, including:
When described Session Resources is concurrent Session Resources, based on default aging duration, corresponding for described IPmax concurrently can
Talk about aging；
And/or, by the concurrent conversation aging that data interaction does not occurs in preset time range corresponding for IPmax.
Method the most according to claim 4, it is characterised in that described by corresponding for IPmax in preset time range not
The concurrent conversation aging of data interaction occurs, including:
Travel through concurrent Session Resources table, determine concurrent Session Resources corresponding to IPmax；
Based in concurrent Session Resources table record each concurrent Session Resources corresponding for IPmax finally use the time, determine
The concurrent session of data interaction does not occurs in preset time range；
By the described concurrent conversation aging that data interaction does not occurs in preset time range.
Method the most according to claim 4, it is characterised in that described restriction or reduction IPmax are to described Session Resources
Take, including:
Send TCP RESET message to IPmax and the opposite end conversated with this IPmax respectively, with terminate described IPmax and with
TCP between the opposite end that this IPmax conversates connects.
Method the most according to claim 1, it is characterised in that described method also includes:
When Session Resources occupancy corresponding for described IPmax is less than three threshold values, stop at restriction or the reduction of IPmax
Reason；Wherein, described 3rd threshold value is less than Second Threshold.
Method the most according to claim 1, it is characterised in that the first threshold corresponding to dissimilar Session Resources is not
With；And/or Second Threshold corresponding to dissimilar Session Resources is different.
9. a session resource management device, it is characterised in that described device includes:
Statistical module, for when the Session Resources occupancy of the network equipment reaches default first threshold, adds up each initiation meeting
The Session Resources occupancy that words IP address is corresponding；
Determine module, for when the Session Resources occupancy of the network equipment reaches Second Threshold, based on count described respectively
Initiate the Session Resources occupancy that session IP address is corresponding, determine the IP address (IPmax) that Session Resources occupancy is maximum；Its
In, described Second Threshold is more than described first threshold；
Limit module, for limiting or reducing IPmax, described Session Resources is taken, to accelerate this equipment recovery session money
Source.
Device the most according to claim 9, it is characterised in that described restriction module, including:
First abandons submodule, is used for when described Session Resources is newly-built Session Resources, the message that will send from described IPmax
Abandon.
11. devices according to claim 9, it is characterised in that described restriction module, including:
Second abandons submodule, for when described Session Resources is newly-built Session Resources based on TCP, is sent by IPmax
Packet loss；
First sends submodule, for sending TCP RESET message to IPmax.
12. devices according to claim 9, it is characterised in that described restriction module, including:
First aging submodule, for when described Session Resources is concurrent Session Resources, based on default aging duration, by institute
State concurrent conversation aging corresponding to IPmax；
And/or, by corresponding for IPmax, the second aging submodule, for not occurring that in preset time range data interaction is also
Send out conversation aging.
13. devices according to claim 12, it is characterised in that described second aging submodule, including:
Traversal Unit, is used for traveling through concurrent Session Resources table, determines concurrent Session Resources corresponding to IPmax；
Determine unit, for based on each concurrent Session Resources corresponding for IPmax recorded in concurrent Session Resources table last
The use time, determine the concurrent session that data interaction does not occurs in preset time range；
Aged cell, for by the described concurrent conversation aging not occurring data interaction in preset time range.
14. devices according to claim 12, it is characterised in that described restriction module, including:
Second sends submodule, for sending TCPRESET message to IPmax and the opposite end conversated with this IPmax respectively,
It is connected with the TCP between the described IPmax of end and the opposite end conversated with this IPmax.
15. methods according to claim 9, it is characterised in that described device also includes:
Stop element, for when Session Resources occupancy corresponding for described IPmax is less than three threshold values, stopping IPmax's
Limit or reduction processes；Wherein, described 3rd threshold value is less than Second Threshold.
16. devices according to claim 9, it is characterised in that the first threshold corresponding to dissimilar Session Resources is not
With；And/or Second Threshold corresponding to dissimilar Session Resources is different.
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