F5 persistence profile has 2 major categories
1. cookie based : use layer 7 information
2. Affinity based : use below than L7 information eg ip address
Now, by using any persistence profile F5 maintain Session initiated by browser to one of its pool member ie webserver, it is called session stickiness.
If we use cookie persistence session data stored on client machine. There are 4 cookie methods hash, insert, rewrite, passive. When browser initiate http request to F5, in a response packet F5 use insert or rewrite method to add cookie value.
Cookie value is nothing but a webserver address and port number in encoded format. When browser receive response packet it store this value in its cookie table. So in that way when browser again initiate new connection it will directs to the same webserver.
In affinity based method F5 allow us to use source or destination ip address to stick a session. In this method session table maintained by F5.
Both have default persistence timer which is 300 sec.
1. cookie based : use layer 7 information
2. Affinity based : use below than L7 information eg ip address
Now, by using any persistence profile F5 maintain Session initiated by browser to one of its pool member ie webserver, it is called session stickiness.
If we use cookie persistence session data stored on client machine. There are 4 cookie methods hash, insert, rewrite, passive. When browser initiate http request to F5, in a response packet F5 use insert or rewrite method to add cookie value.
Cookie value is nothing but a webserver address and port number in encoded format. When browser receive response packet it store this value in its cookie table. So in that way when browser again initiate new connection it will directs to the same webserver.
In affinity based method F5 allow us to use source or destination ip address to stick a session. In this method session table maintained by F5.
Both have default persistence timer which is 300 sec.
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