Hi, Here is the output of the show command: admin@PA-200# show network interface ethernet ethernet1/4 set network interface ethernet ethernet1/4 link-speed auto set network interface ethernet ethernet1/4 link-duplex auto set network interface ethernet ethernet1/4 link-state auto set network interface ethernet ethernet1/4 layer3 units ethernet1/4.10 [edit] admin@PA-200# delete network interface ethernet ethernet1/4 layer3 units ethernet1/4.10 Server error : ethernet1/4.10 cannot be deleted because of references from: import -> network -> interface [edit] admin@PA-200# Now when I try to commit I get the error: admin@PA-200# commit .. network -> interface -> ethernet -> ethernet1/4 -> layer3 -> units -> ethernet1/4.10 constraints failed : tag is required [edit] admin@PA-200# Now after putting the tag back on and after a commit, you can see the reference to the import -> interface here: admin@PA-200> show config running config { devices { localhost.localdomain { network { interface { ethernet { ethernet1/4 { link-speed auto; link-duplex auto; link-state auto; layer3 { units { ethernet1/4.10 { tag 10; } } } } } } vsys { vsys1 { import { network { interface [ ethernet1/3 ethernet1/4 ethernet1/1 ethernet1/4.10]; } } /kristian
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