Performance overhead issue
In our environment we are experiencing serious performance issue when the traffic is routed through F5. Directly accessing web server has no issue. Traffic through F5 taking 10 times more time than directly accessing web server. We observed this as end-user. Further analysis showed that there is file (or) script name looks like "xyz.policy" is responsible for high response time. "xyz.policy" was configured to enforce security for accessing files on the web server. Accessing a file for example "MyFile.html" will redirect to and demands user credentials. From the IIS logs we can see that web server side "time-taken" stats is few milliseconds but overall end-user response time is 40+ seconds. Now I would like to ask our F5 admin to help us analysing this performance issue. I need your help in asking right questions to the F5 admin. I do not have access to F5. Please also suggest how to diagnose such performance issues w.r.t F5. Regards, Prasad
APM :: RDP Performance
Has anybody ran into performance issues with RDP via APM? Our VMware View profiles are speedy (PCoIP - UDP/4172) but when users access their RDP sessions (TCP/443), those are slower than what is tolerable for certain users (even though their bandwidth at home is great). I'm wondering if it has to do with the TCP profile assigned to the virtual server (wan optimized). I haven't been able to test different ones (in production), but just curious on other experiences of folks with the same setup. Log in -> Full Webtop -> RDP Profile Thanks-
Log the time of request /response on the F5.
Hi, Due to some troubleshooting point of view our client was us to log the following information on the F5. Is there any way to log below information on the F5 or some kind of i-rule oOverall Time spent handing a request oTime spent doing SSL offloading oTime spend with the request/response towards the Web Server oTime spent serving the response back to the initial request waiting for the response. thanks.
DNS Resolver Cache
Hi, I'm currently investigating the option to dispose of my LDNS servers and let the LTM do the recursive lookups for my clients and cache responses. I have read the following statement from there site and I'm wondering if this statement applies to what I was trying to do. "It is important for network architects to note that it is possible to configure the local BIND instance on the BIG-IP® system to act as an external DNS resolver. However, F5 Networks does not recommend this approach, because the performance of BIND is slower than using a resolver cache." Basically what I was trying to accomplish is have my clients (linux, windows, etc) point to the LTM as their DNS servers, and let the DNS resolve and cache. Thanks
