Patent ID: 11863520
Assignee: ALIBABA GROUP HOLDING LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A data access system, wherein the system comprises:
an RDMA control service that:
receives an address assignment request sent by an instance control service, wherein the address assignment request is for based on a first instance with a RoCE-based RDMA communication function, wherein identification information from the instance control service is utilized to select a specification from a corresponding elastic compute specification family, and an Application Program Interface (API) is invoked to create the first instance according to a specification selected from the elastic compute specification family,
assigns an address segment to the first instance, based on user information and a corresponding connection relationship between a switch and a first instance defined by a user, wherein the RDMA control service queries a corresponding connection relationship between the network port of the instance and the switch based on the identification information of the instance carried in the request, and invokes a Dynamic Host Configuration Protocol (DHCP) service to assign an address to the network port of the first instance,
builds an access control list based on the address segment assigned to the first instance, wherein the access control list is used for controlling access between different first instances defined by the user,
sends the access control list to a switch control service, and
returns the address segment to the instance control service to start the first instance, wherein the instance control service acquires from an image service an image file matching the specification of the first instance and the instance control service configures, based on the image file, the address segment so that the instance control service can start the address segment configured and assigned for the first instance; and

a switch control service that configures the access control list for the switch based on the received access control list.