Forum Discussion
brad_11440
Jan 15, 2009Nimbostratus
FastL4 vs Optimized TCP Profiles
We run active/standby 6400 (platform D63a) LTM's for our production applications. They are accessed via clients on a private network with an average latency around 80ms. Nearly all of our virtual se...
- Jan 20, 2009Maybe it's about the right time to have you post your VIP config from the bigip.conf. It's possible you have other settings applied to the VIP which conflict with a FastL4 profile??? Also it might be helpful to paste the values of the TCP profile you have applied.
brad_11440
Jan 21, 2009Nimbostratus
Posted By jbaird on 01/20/2009 8:03 PM
Brad, a bit off topic, but would you mind sharing how you are conducting these response time tests? Thanks!
Josh
I am using a product by NetQos called Superagent. It measures end to end application response time by passively monitoring TCP traffic and calculating metrics based off of the header information. You specify servers, application ports and networks. Right now since we are monitoring in front of where our LTM sits on the network, many of the servers are the VIPs themselves. It's nice being able to determine the exact performance gains when making a change like this.
I've attached screenshots off the application performance before and after the profile change was made. An hour worth of data today and then an hour last Wednesday.
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