Network as Service Service Cross-Domain Orchestration Method, Orchestration Device, and Control Device

An orchestration device, comprising:

• a memory comprising instructions;
• and
• a processor coupled to the memory, wherein instructions cause the processor to be configured to:
• receive a network as a service (NaaS) service request, wherein the NaaS service request is used to request to establish an NaaS service between a first terminal and a second terminal;
• obtain information about a first user-to-network interface (UNI) and information about a second UNI in a multi-domain network according to the NaaS service request, wherein the first UNI is used by the first terminal to access a first network domain, wherein the second UNI is used by the second terminal to access a second network domain, and wherein the multi-domain network comprises at least two network domains;
• query domain resource information according to the information about the first UNI and the information about the second UNI, to obtain a cross-domain path between the first UNI and the second UNI;
• obtain a first connection requirement and a second connection requirement of each network domain of network domains that the cross-domain path passes through, wherein the first connection requirement is an intra-domain connection requirement of each network domain, and wherein the second connection requirement is an inter-domain connection requirement between each network domain and an adjacent domain;
• and
• separately send the first connection requirement and the second connection requirement of each network domain to a control device in the network domain such that the control device in each network domain establishes an NaaS service from the first terminal to the second terminal according to the first connection requirement and the second connection requirement of the network domain,
• wherein the domain resource information comprises link information of each network domain in the multi-domain network, and
• wherein the link information of each network domain comprises information about a link from a UNI to an external network-to-network interface (ENNI), information about a link from an ENNI to a UNI, information about a link from an ENNI to another ENNI in a same network domain, and information about a link from an ENNI to an ENNI in an adjacent domain.

A control device, comprising:

• a memory comprising instructions;
• and
• a processor coupled to the memory, wherein the instructions cause the processor to be configured to:
• receive a first connection requirement and a second connection requirement of a network domain that are delivered by an orchestration device, wherein the first connection requirement is an intra-domain connection requirement of the network domain, and wherein the second connection requirement is an inter-domain connection requirement between the network domain and an adjacent domain;
• establish an intra-domain data connection in the network domain according to the first connection requirement;
• and
• establish an inter-domain data connection between the network domain and the adjacent domain according to the second connection requirement.