When the PIT P switch is enabled in the OLT global or in the VLAN service template, uplink packets can be carried the switch of Vendor tag on the service virtual port, and the user uplink packets carry Vendor tarf information, which of the following about the OLT’s processing strategy for PITP message is correct?
A . The OLT adds the local Vendor tap to the uplink PITP message
B . The OLT directly forwards PITP packets on the user side without any processing
C . The OLT strips the Vendor tag carried in the uplink PITP message and adds the local Vendor tag
D . OLT discards uplink PITP packets
Answer: C