Techniques for interconnection of controller- and protocol-based virtual networks

One or more non-transitory tangible media that includes code for execution and when executed by a processor is operable to perform operations comprising:

• obtaining a first message comprising reachability information and data encapsulation capabilities of a first host connected to a first tunnel endpoint in a first network domain, wherein the reachability information and data encapsulation capabilities of the first host are encoded in accordance with a control plane protocol of the first network domain;
• extracting from the first message the reachability information and data encapsulation capabilities of the first host;
• encoding the reachability information and data encapsulation capabilities of the first host in accordance with at least one of an Application Programming Interface (API) and a database schema of a second network domain;
• providing the first message to the second network domain by writing the reachability information and data encapsulation capabilities of the first host to a central controller database of the second network domain in accordance with at least one of the API and the database schema of the second network domain;
• obtaining a second message comprising reachability information and data encapsulation capabilities of a second host connected to a second tunnel endpoint in the second network domain, wherein the reachability information and data encapsulation capabilities of the second host are encoded in accordance with at least one of the API and the database schema of the second network domain;
• extracting from the second message the reachability information and data encapsulation capabilities of the second host;
• encoding the reachability information and data encapsulation capabilities of the second host in accordance with the control plane protocol of the first network domain;
• and
• providing the second message to the first network domain.

An apparatus comprising:

• a memory element configured to store data;
• a processor operable to execute instructions associated with the data;
• and
• a translator configured to:
• obtain a first message comprising reachability information and data encapsulation capabilities of a first host connected to a first tunnel endpoint in a first network domain, wherein the reachability information and data encapsulation capabilities of the first host are encoded in accordance with a control plane protocol of the first network domain;
• extract from the received first message the reachability information and data encapsulation capabilities of the first host;
• encode the reachability information and data encapsulation capabilities of the first host in accordance with at least one of an Application Programming Interface (API) and a database schema of a second network domain;
• provide the first message to the second network domain by writing the reachability information and data encapsulation capabilities of the first host to a central controller database of the second network domain in accordance with at least one of the API and the database schema of the second network domain;
• obtain a second message comprising reachability information and data encapsulation capabilities of a second host connected to a second tunnel endpoint in the second network domain, wherein the reachability information and data encapsulation capabilities of the second host are encoded in accordance with at least one of the API and the database schema of the second network domain;
• extract from the second message the reachability information and data encapsulation capabilities of the second host;
• encode the reachability information and data encapsulation capabilities of the second host in accordance with the control plane protocol of the first network domain;
• and
• provide the second message to the first network domain.