In some cases, the large ISPs require to serve multiple networks with different Service-Name per-interface
As an example:
VLAN100 - Allow all Service-Name
VLAN200 - Allow empty Service-Name and defined
VLAN300 - Allow only defined service name
Proposed configuration:
service-name-set=A,accept-any-service=1 service-name-set=B,service-name=SNB,accept-blank-service=1 service-name-set=C,service-name=SNC,SND,SNE interface=VLAN100,service-name-set=A interface=VLAN200,service-name-set=B interface=VLAN300,service-name-set=C