GTM with LTM performance

Hi Julian,

 

I can only speak to my experience but here is what I think is the best practice for the GTM and LTM

 

 

That being said, the only real advantage to warrant a GTM is if you have two or more data centers that hosts applications using a single domain name(s).

 

 

Now that we got that out of the way let me answer some of you basic questions first

 

 

Q: Is it better to use a dedicated appliance or integrated with the LTM?

 

A: The best practice is to physically separate the LTM and GTM because

 

1) Redundancy - scale beyond the 2 unit appliance

 

2) Reach-ability - If hosted on the same appliance or Virtual M your clients might not be able to reach the GTM to do resolution.

 

3) Serviceability - Separated you can perform independent upgrades or fixes.

 

Otherwise you can host it just fine on the same appliance or same VM

 

 

Q: Can we have LTM and GTM on the same appliance with HA?

 

A: Yes you can without an issue.

 

 

Q: Does the performance is reduced when we use LTM and GTM together?

 

A: All the Appliances are sized to handle the GTM so the short answer is no. The longer answer is: depends. This is because they are sharing the same resources on a single appliance so they are prone to the same types of performance issues as any other application running on the same device.

 

 

I hope this answers some of your questions

 

 

Bhattman

Some additional thoughts on GTM on LTM or GTM as a standalone:

 

 

http://devcentral.f5.com/Community/GroupDetails/tabid/1082223/aff/31/afv/topic/aft/1184625/afc/1258295/Default.aspx

 

 

Aaron

Thank you for your answers bhattman, it is clearer now.

 

And thank you hoolio for the other topic's link.

 

 

Julian