# US 2021/0176321 A1 · Method and device for establishing multi-domain multi-layer connectivity service > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0176321 A1 - Document ID: US20210176321A1 - Status: Published application - Kind: A1 - Application number: 16/772,857 - Filed: 2018-12-14 - Published: 2021-06-10 - Earliest claimed: 2017-12-14 - Assignees: Zte Corporation - Applicants: Zte Corporation - Inventors: Rongduo LU - Web page: https://patentgrep.com/patent/US20210176321A1 ## CPC - H04L 41/044: comprising hierarchical management structures - H04L 12/46: Interconnection of networks - H04L 41/0806: for initial configuration or provisioning, e.g. plug-and-play - H04L 41/342: between virtual entities, e.g. orchestrators, SDN or NFV entities - H04L 45/04: {Interdomain routing, e.g. hierarchical routing} - H04L 67/141: Setup of application sessions (admission control or resource allocation in data switching networks H04L47/70) - H04L 67/146: Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Disclosed are a method and apparatus for establishing multi-domain multi-layer connectivity service. The method includes: receiving a multi-domain multi-layer connectivity service establishment request carrying an identifier of a first service interface point, first configuration information of two or more network layer protocols of the first service interface point, an identifier of a second service interface point, and second configuration information of two or more network layer protocols of the second service interface point; and establishing multi-domain multi-layer connectivity service according to the multi-domain multi-layer connectivity service establishment request. ## Claims ### Claim 1 A method for establishing multi-domain multi-layer connectivity service, comprising: receiving a multi-domain multi-layer connectivity service establishment request, wherein the multi-domain multi-layer connectivity service establishment request is used for requesting establishment of multi-domain multi-layer connectivity service between a first service interface point of a first control domain and a second service interface point of a second control domain, and the multi-domain multi-layer connectivity service establishment request carries an identifier of the first service interface point, first configuration information of two or more network layer protocols of the first service interface point, an identifier of the second service interface point, and second configuration information of two or more network layer protocols of the second service interface point; and establishing the multi-domain multi-layer connectivity service according to the multi-domain multi-layer connectivity service establishment request. ### Claim 2 (depends on 1) The method for establishing multi-domain multi-layer connectivity service of claim 1, wherein first configuration information and second configuration information of a same network layer are same. ### Claim 3 (depends on 1) The method for establishing multi-domain multi-layer connectivity service of claim 1, wherein the multi-domain multi-layer connectivity service establishment request comprises a first connectivity service end point corresponding to the first service interface point and a second connectivity service end point corresponding to the second service interface point; the identifier of the first service interface point and the first configuration information of the two or more network layer protocols of the first service interface point are carried in the first connectivity service end point; and the identifier of the second service interface point and the second configuration information of the two or more network layer protocols of the second service interface point are carried in the second connectivity service end point. ### Claim 4 (depends on 1) The method for establishing multi-domain multi-layer connectivity service of claim 1, wherein establishing the multi-domain multi-layer connectivity service according to the multi-domain multi-layer connectivity service establishment request comprises: splitting the multi-domain multi-layer connectivity service establishment request into two or more single-domain multi-layer connectivity service establishment requests, and sending the single-domain multi-layer connectivity service establishment requests to respective single-domain controllers, so that the single-domain controllers achieve establishment of single-domain multi-layer connectivity service, thereby achieving the establishment of the multi-domain multi-layer connectivity service; wherein the single-domain multi-layer connectivity service establishment request is used for requesting the establishment of the single-domain multi-layer connectivity service in a respective control domain, and the single-domain multi-layer connectivity service establishment request carries an identifier of a third service interface point of the single-domain multi-layer connectivity service, and third configuration information of two or more network layer protocols of the third service interface point or third configuration information of a network layer protocol of a network layer where an inter-domain link of the third service interface point is located. ### Claim 5 (depends on 4) The method for establishing multi-domain multi-layer connectivity service of claim 4, wherein for a same network layer, first configuration information, second configuration information, and third configuration information are same. ### Claim 6 (depends on 4) The method for establishing multi-domain multi-layer connectivity service of claim 4, wherein the single-domain multi-layer connectivity service establishment request comprises a third connectivity service end point corresponding to the third service interface point; and the third connectivity service end point carries the identifier of the third service interface point, and the third configuration information of the two or more network layer protocols of the third service interface point or the third configuration information of the network layer protocol of the network layer where the inter-domain link of the third service interface point is located. ### Claim 7 (depends on 1) The method for establishing multi-domain multi-layer connectivity service of claim 1, wherein establishing the multi-domain multi-layer connectivity service according to the multi-domain multi-layer connectivity service establishment request comprises: calculating a multi-domain path according to the multi-domain multi-layer connectivity service establishment request; splitting the multi-domain multi-layer connectivity service into two or more pieces of single-domain multi-layer connectivity service according to the multi-domain path; and for each of the two or more pieces of single-domain multi-layer connectivity service, establishing the each of the two or more pieces of single-domain multi-layer connectivity service according to the first configuration information or the second configuration information. ### Claim 8 A method for establishing multi-domain multi-layer connectivity service, comprising: receiving a single-domain multi-layer connectivity service establishment request, wherein the single-domain multi-layer connectivity service establishment request is used for requesting establishment of single-domain multi-layer connectivity service in a corresponding control domain, and the single-domain multi-layer connectivity service establishment request carries an identifier of a third service interface point of the single-domain multi-layer connectivity service, and third configuration information of two or more network layer protocols of the third service interface point or third configuration information of a network layer protocol of a network layer where an inter-domain link of the third service interface point is located; and establishing the single-domain multi-layer connectivity service according to the single-domain multi-layer connectivity service establishment request. ### Claim 9 (depends on 8) The method for establishing multi-domain multi-layer connectivity service of claim 8, wherein third configuration information of a same network layer is same. ### Claim 10 (depends on 8) The method for establishing multi-domain multi-layer connectivity service of claim 8, wherein the single-domain multi-layer connectivity service establishment request comprises a third connectivity service end point corresponding to the third service interface point; and the third connectivity service end point carries the identifier of the third service interface point, and the third configuration information of the two or more network layer protocols of the third service interface point or the third configuration information of the network layer protocol of the network layer where the inter-domain link of the third service interface point is located. ### Claim 11 An apparatus for establishing multi-domain multi-layer connectivity service, comprising: a processor and a storage medium storing programs, wherein the programs, when executed by the processor, comprises: a first receiving module, which is configured to receive a multi-domain multi-layer connectivity service establishment request, wherein the multi-domain multi-layer connectivity service establishment request is used for requesting establishment of multi-domain multi-layer connectivity service between a first service interface point of a first control domain and a second service interface point of a second control domain, and the multi-domain multi-layer connectivity service establishment request carries an identifier of the first service interface point, first configuration information of two or more network layer protocols of the first service interface point, an identifier of the second service interface point, and second configuration information of two or more network layer protocols of the second service interface point; and a first establishment module, which is configured to establish the multi-domain multi-layer connectivity service according to the multi-domain multi-layer connectivity service establishment request. ### Claim 12 (depends on 11) The apparatus for establishing multi-domain multi-layer connectivity service of claim 11, wherein first configuration information and second configuration information of a same network layer are same. ### Claim 13 (depends on 11) The apparatus for establishing multi-domain multi-layer connectivity service of claim 11, wherein the multi-domain multi-layer connectivity service establishment request comprises a first connectivity service end point corresponding to the first service interface point and a second connectivity service end point corresponding to the second service interface point; the identifier of the first service interface point and the first configuration information of the two or more network layer protocols of the first service interface point are carried in the first connectivity service end point; and the identifier of the second service interface point and the second configuration information of the two or more network layer protocols of the second service interface point are carried in the second connectivity service end point. ### Claim 14 (depends on 11) The apparatus for establishing multi-domain multi-layer connectivity service of claim 11, wherein the first establishment module is configured to: split the multi-domain multi-layer connectivity service establishment request into two or more single-domain multi-layer connectivity service establishment requests, and send the single-domain multi-layer connectivity service establishment requests to respective single-domain controllers, so that the single-domain controllers achieve establishment of single-domain multi-layer connectivity service, thereby achieving the establishment of the multi-domain multi-layer connectivity service; wherein the single-domain multi-layer connectivity service establishment request is used for requesting the establishment of the single-domain multi-layer connectivity service in a respective control domain, and the single-domain multi-layer connectivity service establishment request carries an identifier of a third service interface point of the single-domain multi-layer connectivity service and third configuration information of two or more network layer protocols of the third service interface point or third configuration information of a network layer protocol of a network layer where an inter-domain link of the third service interface point is located. ### Claim 15 (depends on 14) The apparatus for establishing multi-domain multi-layer connectivity service of claim 14, wherein for a same network layer, first configuration information, second configuration information, and third configuration information are same. ### Claim 16 (depends on 14) The apparatus for establishing multi-domain multi-layer connectivity service of claim 14, wherein the single-domain multi-layer connectivity service establishment request comprises a third connectivity service end point corresponding to the third service interface point; and the third connectivity service end point carries the identifier of the third service interface point, and the third configuration information of the two or more network layer protocols of the third service interface point or the third configuration information of the network layer protocol of the network layer where the inter-domain link of the third service interface point is located. ### Claim 17 (depends on 11) The apparatus for establishing multi-domain multi-layer connectivity service of claim 11, wherein the first establishment module is configured to: calculate a multi-domain path according to the multi-domain multi-layer connectivity service establishment request; split the multi-domain multi-layer connectivity service into two or more pieces of single-domain multi-layer connectivity service according to the multi-domain path; and for each of the two or more pieces of single-domain multi-layer connectivity service, establish the each of the two or more pieces of single-domain multi-layer connectivity service according to the first configuration information or the second configuration information. ### Claim 18 (depends on 8) An apparatus for establishing multi-domain multi-layer connectivity service, applied for the method of claim 8, comprising: a processor and a storage medium storing programs, wherein the programs, when executed by the processor, comprises: a second receiving module, which is configured to receive a single-domain multi-layer connectivity service establishment request, wherein the single-domain multi-layer connectivity service establishment request is used for requesting establishment of single-domain multi-layer connectivity service in a corresponding control domain, and the single-domain multi-layer connectivity service establishment request carries an identifier of a third service interface point of the single-domain multi-layer connectivity service, and third configuration information of two or more network layer protocols of the third service interface point or third configuration information of a network layer protocol of a network layer where an inter-domain link of the third service interface point is located; and a second establishment module, which is configured to establish the single-domain multi-layer connectivity service according to the single-domain multi-layer connectivity service establishment request. ### Claim 19 (depends on 18) The apparatus for establishing multi-domain multi-layer connectivity service of claim 18, wherein third configuration information of a same network layer is same. ### Claim 20 (depends on 18) The apparatus for establishing multi-domain multi-layer connectivity service of claim 18, wherein the single-domain multi-layer connectivity service establishment request comprises a third connectivity service end point corresponding to the third service interface point; and the third connectivity service end point carries the identifier of the third service interface point, and the third configuration information of the two or more network layer protocols of the third service interface point or the third configuration information of the network layer protocol of the network layer where the inter-domain link of the third service interface point is located. ### Claim at position 21 -24. (canceled)