Safari on IOS 5 randomly switches images

Hi Stein,

 

 

Which LTM version are you running? Can you print out the virtual server definition using 'tmsh list ltm virtual VS_NAME'?

 

 

Aaron

Hey Stein -

 

 

Thanks for including your detailed blog post. Noah (in the blog's comments) mentioned having the same problem on a device using the Opera browser, and that disabling pipelining in the client solved his issue.

 

 

Out of curiosity, have you tried a different browser, a la, Dolphin, Atomic, etc.? If so, were you able to replicate the issue with the BigIP in play? If not, doing so may help eliminate iOS 5 as the culprit and allow us to zero in on Safari itself. For further analysis with Safari, the Debug Console, under Safari Advanced settings may be useful.

 

 

Joey

 

Hi,

 

 

we're using ltm v 10.2.2-763.0

 

 

 

tmsh list ltm virtual touch.vg.no

 

 

 

This one gives no swapped images:

 

 

 

ltm virtual touch.vg.no {

 

destination 195.88.55.71:http

 

ip-protocol tcp

 

mask 255.255.255.255

 

persist {

 

source_addr {

 

default yes

 

}

 

}

 

pool varnish_m323_l4

 

profiles {

 

fastL4 { }

 

}

 

snat automap

 

}

 

 

 

 

 

 

But this one does:

 

 

 

ltm virtual vg.no_m323 {

 

destination 195.88.55.16:http

 

ip-protocol tcp

 

mask 255.255.255.255

 

pool varnish_m323

 

profiles {

 

tcp-lan-optimized {

 

context serverside

 

}

 

tcp-wan-optimized {

 

context clientside

 

}

 

}

 

rules {

 

selectively_disable_snat

 

add_cookie_a55

 

add_X-VG-ClientInfo

 

}

 

snatpool m323_www.vg.no_snatpool

 

}

 

 

Can you try the L7 virtual server with a custom OneConnect profile with a /32 source mask?

 

 

Aaron

That could be a problem, as OneConnect and Varnish is not the best of friends. Havent tried it in a few years, but the last time I tried OneConnect, Varnish closes the connection before the BigIP wants it to, resulting in 200OK, but empty responses to the client.