UDP Profile?

CMP is not an iRule it's a BIGIP functionnality:

 

 

If you have an askF5 account: Click here

 

Otherwise it's here:

 

 

Clustered Multi-Processing (CMP) is a new feature to BIG-IP 9.4 that allows specific platforms with multiple processors to use multiple TMM instances to increase traffic handling.

 

 

CMP is only available on the following platforms:

 

 

* BIG-IP 8400

 

* BIG-IP 8800

 

 

CMP should not be confused with Symmetric Multi-Processing (SMP) as CMP is unique to the BIG-IP operating system, and only processes connections.

 

 

SMP architecture is utilized in multiple operating systems. SMP operates by allowing operating systems and software applications that are optimized for SMP to use the multiple processors available to the operating system. This is performed by spreading multiple threads across multiple processors, which allows for faster processing and more efficient use of system resources, as multiple threads can be processed simultaneously instead of waiting in a queue to be processed.

 

 

CMP is unique to BIG-IP LTM versions 9.4 and later. CMP creates separate instances of the Traffic Management Microkernel (TMM) for each processor on the system. This increases performance and accelerates traffic handling since there are multiple TMM instances handling traffic.

 

 

When a virtual server is enabled, the CMP feature is automatically enabled. When CMP is enabled, all instances of TMM are available to process application traffic as follows:

 

 

* 2 TMM processes running on a dual-CPU BIG-IP system (8400)

 

* 4 TMM processes running on a dual-core, dual-CPU BIG-IP system (8800)

 

 

CMP is not compatible with certain BIG-IP system configurations. If one of the following configurations exist, CMP will be disabled:

 

 

* The BIG-IP system is running BIG-IP ASM and/or the BIG-IP WebAccelerator module.

 

* Hardware compression is enabled.

 

 

If a virtual server references any of the following BIG-IP system features, CMP is disabled for that virtual server:

 

 

* A rate class

 

* iRules global variables

 

* A session persistence profile or iRule

 

* Traffic Management Operating System (TMOS) plug-ins

 

ooo got it..

 

 

btw, is there any sample code for use global variable shared among different iRules?

 

 

- rk

You will find some information about global variables Click here,Click here, Click here, and/or Click here

 

 

It's simple,

 

 

you use global variable just like local variables.

 

 

The only difference is you add :: in front of the variable name to make it a global.

 

 

local variable: set toto 1

 

global variable: set ::toto 1

 

 

To use it in another iRule you just need to call the global variable, for example: log local0. "toto value is $::toto"

 

 

HTH

I have read thru a few docs and I have confused. help!

 

 

it seems that I need to use session to store up the value. is below works?

 

 

assume I have the following configuration

 

 

RADIUS -> virtualserver ip1 -> irule1 (this is to obtain ip information)

 

HTTP -> virtualserver ip2 -> irule2 (apply the above ip information)'

 

 

 

irule1:

 

when CLIENT_ACCEPTED {

 

set ::ip "10.12.1.1"

 

session add uie $::ip pool1

 

}

 

 

irule2:

 

when HTTP_REQUEST {

 

set poolname [session lookup uie $::ip[

 

}

 

Hi,

 

 

If you want to make persistency of the connection then you should use persist instead of session:

 

 

here is an example of how both works: Click here

 

 

If you want to share information accross multiple VS with persist and session command you need to add "any virtual" to your iRule: Click here

 

 

session add uie $::ip {"pool1" any virtual}

 

 

session lookup uie {$::ip any virtual}

 

 

One bit of warning: Global variables will be one value for all connection so you need to be careful that another connection may not modify your value in an unexpected way !

 

 

ok! so the session table is like below eg.

 

 

key

ok! so the session table is like below eg.?

 

 

I wanted to make sure I did understand it correctly

 

 

key data

 

10.12.1.1 pool1

 

20.12.1.2 pool2

 

.

 

 

 

- rk

 

.

 

You understand correctly yes

thx

 

 

do i need to do a unset ?