payload load based load balance and OSPF

Hello,

 

i wrote irule and it loadbalance clients to servers, it looks paylod in packets. it works without problem

 

i attached the customer topology, i showed bigip on topology

 

here is my requirements ;

 

all traffic will pass over bigip but i will use iRule for some traffics (i will look payload)

 

question;

 

which configuration type i need use on bigip

 

L2? or L3? vlangroup?

 

What can i do for OSPF, i dont want change customer ospf topology

 

the other thing

 

sometimes servers behind on ibmmainframe1 and some times behind ibm mainframe2

 

how can i deploy redundant bigip in this topology

 

note: does anybody deployed bigip with ibm mainframe?

 

regards

 

Zafer Berber