Session establishment method and apparatus

A session establishment apparatus, comprising:

• an IVC acquiring unit, configured to acquire an infrastructure virtual circuit IVC corresponding to a user equipment UE;
• a VLAN label sending unit, configured to send a virtual local area network VLAN label corresponding to the IVC to a customer location function set, so that the customer location function set adds the VLAN label to a packet of the UE, wherein the VLAN label is configured by an L2 session control functional entity for the IVC;
• and
• a VLAN label notifying unit, configured to notify an L2 forwarding functional entity of the VLAN label, so that the L2 forwarding functional entity forwards, to the IVC, the packet sent by the customer location function set and added with the VLAN label.

A session establishment apparatus, comprising:

• an authentication request sending unit, configured to send an authentication request comprising a subscriber identity of a user equipment UE, so that an L2 session control functional entity acquires an infrastructure virtual circuit IVC corresponding to the UE, wherein the IVC is determined according to the subscriber identity;
• a VLAN label adding unit, configured to add a VLAN label to a packet of the UE, wherein the VLAN label is configured by the L2 session control functional entity for the IVC and sent to a customer location function set;
• and
• a packet sending unit, configured to send the packet added with the VLAN label to an L2 session forwarding functional entity, so that the L2 session forwarding functional entity forwards the packet added with the VLAN label to the IVC.