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

Forum Discussion

Thiyagu_343098's avatar
Thiyagu_343098
Icon for Nimbostratus rankNimbostratus
7 years ago

Not finding any connection table entries after enabling "Datagram LB" within the UDP profile

Hello All, In order to fix the unequal UDP load balancing issue I have enabled "Datagram LB" within the UDP profile. After that I'm not find any session entries for the VIP in the LB connection tabl...
application delivery
big-ip
LTM
Andy_McGrath's avatar
Andy_McGrath
Icon for Cumulonimbus rankCumulonimbus
7 years ago

Enabling 

Datagram LB
means that the load balancing decision will be made on every UDP datagram so you can think of this as being stateless.

If you wanted to turn this into a stateful UDP connections you would need to apply some persistence profile based on something within the UDP datagram.

I have done this for RADIUS traffic where traffic is coming from Cisco switch, so common IP addresses, and we setup Persistence using the RADIUS attributes 

Calling-Station-ID
.