Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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alex_yegorov_18's avatar
alex_yegorov_18
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Jan 14, 2015

Source Address Affinity persistence timeout option

Hi F5 community, question is that : timeout (say, default 180s) starts ticking since connection was first time routed to specific server - is it reset back to default (180s) or preset value each tim...
application delivery
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LTM
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source address
Ed_Summers's avatar
Ed_Summers
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Jan 14, 2015

The timer will refresh/reset as long as traffic is coming in. I'll have to check as it may not refresh immediately. We had a recent issue where we monitored this for traffic in a 'match across services' configuration and I found that the record refreshed about every 30 seconds as long as traffic was active.

 

So as long as the device is receiving traffic for a configured virtual that matches the record, the record will stay 'fresh'. I'll have to follow up or hopefully someone else can chime in and clarify if persistence records are periodically refreshed or continually refreshed. I know at least in one case ('match across services') the records were refreshed every ~30 seconds.

 

-Ed