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kishore_chennup's avatar
kishore_chennup
Icon for Nimbostratus rankNimbostratus
Jan 07, 2013

Persistent vs Active

Hi All,     What is the difference between persiste connectoins and active connectoin on a BIG IP LTM. When I do a show sys conn , is it showing me the active connections or persistent connec...
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kishore_chennup's avatar
kishore_chennup
Icon for Nimbostratus rankNimbostratus
Jan 07, 2013

Hi nitass,

 

 

Thanks for the quick reply. I have been advised by a F5 trainer that forcing the node offlline kills all the persistent connections. On the LTM the node states show as below(taken from the GUI)

 

 

Enabled (All traffic allowed)

 

Disabled (Only persistent or active connections allowed)

 

Forced Offline (Only active connections allowed) <<< not sure if this means that the persistent connections are taken down.

 

 

So what does forcing a node offline achieve? Also looking at your last output it appears that the active connection is there but the persist record disappeared for node 200.200.101

 

 

[root@ve10:Active] config b conn server 172.28.19.252

 

192.168.206.33:64751 <-> 172.28.19.252:23 <-> 200.200.200.101:23 6 1/0

 

192.168.206.33:64752 <-> 172.28.19.252:23 <-> 200.200.200.111:23 6 1/0

 

 

[root@ve10:Active] config b persist

 

PERSISTENT CONNECTIONS

 

Type Virtual Node

 

source addr 172.28.19.252:23 200.200.200.111:23 <<< no persist record here. Is it because the timeout value expired?