Enable/Disable pool member via CLI

check here https://support.f5.com/csp/article/K13310

Put pool members on Forced Offline

modify ltm pool  members modify {  { session user-disabled state user-down } }

example: modify ltm pool pool_name members modify { 10.10.0.6:80 { session user-disabled state user-down } }

Disable pool member

modify ltm pool  members modify {  { { session user-disabled } }

example: modify ltm pool pool_name members modify { 10.10.0.6:80 { session user-disabled } }