Methods and apparatus to form secure cross-virtual private network communication sessions

An apparatus comprising:

• a memory comprising machine readable instructions;
• and
• a processor to execute the instructions to perform operations comprising:
• sending a first border gateway protocol route advertisement to a first provider edge router associated with a first one of two multiprotocol label switched-based virtual private networks in response to receiving a cross-virtual private network link setup request from an application server, the route advertisement comprising a flow-spec parameter, and the setup request identifying a communication path between two user devices associated with the first and second multiprotocol label switched-based virtual private networks;
• sending a second border gateway protocol route advertisement to a second provider edge router associated with the second multiprotocol label switched-based virtual private network;
• and
• restricting a communication session between the two user devices of the first and second multiprotocol label switched-based virtual private networks to a first protocol for a threshold period of time based on a restriction parameter shared by the communication path.

A tangible machine readable storage device comprising instructions which, when executed, cause a machine to perform a method comprising:

• sending a first border gateway protocol route advertisement to a first provider edge router associated with a first one of two multiprotocol label switched-based virtual private networks in response to receiving a cross-virtual private network link setup request from an application server, the route advertisement comprising a flow-spec parameter, and the setup request identifying a communication path between two user devices associated with the first and second multiprotocol label switched-based virtual private networks;
• sending a second border gateway protocol route advertisement to a second provider edge router associated with the second multiprotocol label switched-based virtual private network;
• and
• restricting a communication session between the two user devices of the first and second multiprotocol label switched-based virtual private networks to a first protocol for a threshold period of time based on a restriction parameter shared by the communication path.