How to limin conection by MSISDN

With the different permutations of the persist command you should be able to perform a lookup as you're describing. The command you'd want to use is persist lookup.

 

 

You can read more about the persist command options here - Click here

 

 

HTH,

 

Colin

Hi

 

Can you give example

 

 

Thank you

Sure. If you just want to perform a check to see if the info is in the persistence table already, you'd do:

 
 persist lookup uie [HTTP::header "MSISDN"]  
 

So if you wanted to only perform a certain action if this record didn't exist, for example, you could do:

 
 set pEntry [persist lookup uie [HTTP::header "MSISDN"] ] 
 if { [string length $pEntry] <= 0 ] 
   ... 
 

Does that help?

Colin

Hi Colin

 

Yes The Example Is great - Thank you for the Help

 

 

I succedd to limit the tcp connection on the pool. but I can count only Active TCP connection but I want to know how much Active MSISDN I have Or the TOtal MSISDN in the persistent Table.

 

 

Is there away tho know How much recorded I have in the persistent Table ?

 

that how I will be abe to know how much MSISDN I have and I will limit by MSISDN.

 

 

Here is My Rule

 

 

when RULE_INIT {

 

 

Set a global max for number of concurrent TCP connections

 

set ::max_connections 1

 

 

Set an HTML response to sent to clients who make a request while the VIP is over the max connection count

 

set ::html_content_503 "over limit"

 

set ::html_content_401 "NO MSISDN IN HEADER"

 

 

Print debug messages to /var/log/ltm? 1=yes, 0=no

 

set ::debug 1

 

 

Initialize a counter for active connections (don't modify this)

 

set ::active_connections 0

 

}

 

when HTTP_REQUEST {

 

if { [HTTP::header exists "MSISDN"] } {

 

If we're over the limit for this connection, send a response

 

if {$::active_connections > $::max_connections}{

 

Check if Hndset persist

 

set pEntry [persist lookup uie [HTTP::header "MSISDN"] ]

 

if { [string length $pEntry] >= 1 } {

 

incr ::active_connections 1

 

persist uie [HTTP::header "MSISDN"]

 

if {$::debug}{log local0. "Handset persist - Enter (current: $::active_connections). Sent response to [IP::client_addr] , MSISDN [HTTP::header "MSISDN"]"}

 

} else {

 

Send a response

 

HTTP::respond 503 content $::html_content_503

 

if {$::debug}{log local0. "HTTP::respond - Service Unavailable content (current: $::active_connections). Sent response to [IP::client_addr] , MSISDN [HTTP::header "MSISDN"]"}

 

Close the connection since CLIENT_CLOSED will decrease active_connections -1

 

incr ::active_connections 1

 

TCP::close

 

Log a message to /var/log/ltm if debug is enabled

 

}

 

} else {

 

We're not over the limit, so check if this is the first HTTP request on the TCP connection.

 

persist uie [HTTP::header "MSISDN"]

 

Increment the TCP connection count.

 

incr ::active_connections 1

 

if {$::debug}{log local0. "Add MSISDN (current: $::active_connections). Sent response to [IP::client_addr] , MSISDN [HTTP::header "MSISDN"]"}

 

}

 

} else {

 

HTTP::respond 401 content $::html_content_401

 

}

 

}

 

 

 

when CLIENT_CLOSED {

 

A connection was closed, so decrement the global counter

 

incr ::active_connections -1

 

if {$::debug}{log local0. "CLIENT_CLOSED (current: $::active_connections). Sent response to [IP::client_addr]"}

 

}

 

 

 

Again Colin Thank you In Advance

Is there away tho know How much recorded I have in the persistent Table ?

 

Hi Dedi,

 

 

There isn't a simple mechanism for counting session table entries from an iRule. Check this post for details on requesting that F5 add this functionality. Please open a support case with F5 if you want this functionality.

 

 

http://devcentral.f5.com/Default.aspx?tabid=53&forumid=5&tpage=1&view=topic&postid=2517426340

 

 

And I described a possible workaround in this thread:

 

 

http://devcentral.f5.com/Default.aspx?tabid=53&forumid=5&postid=30234&view=topic30337

 

 

Aaron

Actually Dedi, you'll run into the same issue with your iRule which abeny did in his iRule (Click here). You're incrementing the connection count for every HTTP request and only decrementing the count once when the client to VIP TCP connection is closed. If the client makes multiple HTTP requests on the same TCP connection, your count won't be accurate.

 

 

Aaron

There is a relatively simple fix for that though, detailed in the link that Aaron posted.

 

 

Colin