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Forum Discussion

cheezus_115419's avatar
cheezus_115419
Icon for Nimbostratus rankNimbostratus
May 07, 2013

Slow first outbound connection. Fast subsequent connections.

The problem is that the first outbound connection from a server to a host is very slow. The second and subsequent connections are very fast. We are testing wget 100m test files over http from vario...
config
design
What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
May 16, 2013
OK, I was wrong, it's PVA/ePVA processing that's disabled, not CMP, my apologies. Still, this can have quite an impact on performance.

 

 

As noted in this (but no specific mention of ePVA in VIPRION): http://support.f5.com/kb/en-us/solutions/public/9000/400/sol9487.html

 

 

"Note: The auto_lasthop setting is a global setting, and disabling it may affect system performance. Without it, the BIG-IP system must instead ARP for MAC addresses and perform routing table lookups rather than using last hop data from the connection table. In addition, Packet Velocity Accelerator (PVA) will also be disabled globally when the auto_lasthop setting is disabled on platforms with a PVA."