Forum Discussion

jokragly's avatar
jokragly
Icon for Nimbostratus rankNimbostratus
Feb 26, 2013

ASM slows basic website

We have a pretty basic ASM policy applied in transparent mode against a standard https website. When we apply the ASM HTTP Class the website slows to a crawl to get to the home page. If we remove t...
app sec
BIG-IP Access Policy Manager (APM)
security
nathe's avatar
nathe
Icon for Cirrocumulus rankCirrocumulus
Feb 26, 2013
jokragly,

 

 

Just some thoughts, suggestions:

 

 

Anything in /var/log/asm or /var/log/ltm that might give some clues? Have you tried running httpfox/ httpwatch from a client? What about a tcpdump capturing both on the client and server side of the connection?

 

Are you terminating the SSL connection on the f5 and/or re-encrypting to the backend server?

 

Is this the only HTTP Class / ASM enabled VS? Do the others work ok?

 

What about if you run the "top" command whilst the HTTP Class is enabled? I think the "bd" process is the one to bear in mind with ASM.

 

 

Rgds

 

N