Forum Discussion
A layer 4 virtual server will allow you to apply and iRule that can perform actions at layer 4 events, like matching against destination port numbers.
Both servers will forward the initial SYN to its destination without waiting for the handshake to complete on the frontend. Using these profiles the f5 is effectively routing.
Hi,
Thanks for pointing me to this article. I was looking for some more in-depth information. This article states:
Forwarding IP: A Forwarding (IP) virtual server forwards packets directly to the destination IP address specified in the client request. A Forwarding (IP) virtual server has no pool members to load balance.
and:
A Performance (Layer 4) virtual server has a FastL4 profile associated with it. A Performance (Layer 4) virtual server increases the speed at which the virtual server processes packets.
In my config example, both VS (L3 and L4) have no pool(members) attached. Also: a Forwarding IP VS also has a FastL4 profile attached (just like the L4, as the article states).
Hence, my question: what is the difference between the two definitions. Perhaps the answer is: in this case they are both identical, but then I wonder, why have two separate versions of the VS instead of just the Performance L4 type, which might behave as an IP Forwarding when you omit the pool?