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uni
Altostratus
Feb 09, 2012Source IP decision in Performance HTTP virtual
Can I make a load-balancing decision based on the source IP address with a Performance HTTP or Performance Layer 4 virtual? As I see it, the decision is made as soon as the client SYN is received, whi...
uni
Altostratus
Feb 09, 2012Possibly, but http://support.f5.com/kb/en-us/solutions/public/8000/000/sol8082.html?sr=19200790l4 states that
the initial SYN request sent from the client to the BIG-IP LTM virtual server. The BIG-IP LTM makes the load balancing decision and passes the SYN request to the pool member.
So, at the point the load-balancing decision is made, there is no established connection so I guess it comes down to when an entry is inserted in the connection table - after the first SYN, after the SYN/ACK, or after the full handshake.
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