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Forum Discussion

Jérôme_ANGLES's avatar
Jérôme_ANGLES
Icon for Nimbostratus rankNimbostratus
Nov 25, 2014

Delay between two HTTP requests in a common TCP.flow (between 10 - 30 seconds)

I have a long wait on a application configured on a bigip LTM 3900 v10.2.2. I captured the traffic on the bigip and there are a few things i see that seems strange...   On a common tcp.flow, th...
application delivery
design
LTM
performance
Jérôme_ANGLES's avatar
Jérôme_ANGLES
Icon for Nimbostratus rankNimbostratus
Dec 11, 2014

I don't do anything to change the speed and duplex on my computer. Both the switchs and computers are configured with autonegociation. The duplex is always Full on both switch and computer.

 

I tried on different switch type : - Avaya ERS 4550T PWR (users ports are 100Mb/s and there are 2 x 1Gb/s ports). I tried both - Avaya ERS 4850 GTS (all ports are 1Gb/s) - Avaya ERS 4548 (all ports are 1Gb/s) - Avaya ERS 8800 (Router - i used a copper Gbic to run the test - 1Gb/s only)

 

The result are always the same anywhere on the network : - with 1Gb/s Full duplex : The application works fine - with 100Mb/s Full duplex : the application suffers of delay (10-30s)

 

Also, if i bypass the F5 and use the real IP of the server, everything work fine.