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US 11,606,255 B2Granted
Method and apparatus for creating network slices
AssigneeZte Corporation
InventorsShaofu Peng, Baoya Zhang
Life of this patent
Estimating the term…
Abstract
Disclosed are a method and an apparatus for creating network slices. The method for creating network slices comprises: creating a slice-bundles link between a first node and a second node, wherein the slice-bundles link comprises at least one member link created between the first node and the second node; and configuring a packet service for the slice-bundles link.
Claims14
A method for creating network slices, comprising:
- creating a slice-bundles link between a first node and a second node, wherein, the slice-bundles link comprises at least one member link between the first node and the second node;
- and
- configuring a packet service for the slice-bundles link;
- wherein before creating the slice-bundles link between the first node and the second node, the method further comprises:
- creating the at least one member link between the first node and the second node;
- and
- configuring, for each member link of the at least one member link, a slice to which the member link belongs, and configuring, for each node of the first node and the second node, a slice to which the node belongs;
- wherein, the creating the slice-bundles link between the first node and the second node comprises creating interconnected slice-bundles interfaces on the first node and the second node, respectively, and adding the at least one member link to the slice-bundles interfaces as a member interface, and wherein, an IP address is configured and an interior gateway protocol (IGP) is enabled on the slice-bundles interfaces;
- the method further comprising:
- flooding link state information and maintaining a consistent link state database on each node;
- wherein, the link state database records the flooded link state information, and the link state information carries a slice attribute of each node and carries state information and a slice attribute of each member link;
- and
- performing slice path calculation based on the link state database;
- wherein the performing slice path calculation comprises:
- performing a constrained shortest path first (CSPF) calculation to calculate a shortest path from the first node to all other destination nodes in the first slice to which the first node belongs, wherein, constraint conditions for performing the CSPF calculation are {slice-id of the first slice, igp-metric is the smallest};
- and the calculation comprises:
- matching a slice attribute of each member link contained in the slice-bundles link and a slice attribute of each node according to the constraint conditions to obtain an optimal next hop forwarded by the shortest path of the first slice.
14 more elements
An apparatus for creating network slices, comprising a memory, a processor, and a computer program stored on the memory and run on the processor, when executed by the processor, the computer program implements a method for creating network slices, wherein, the method comprises:
- creating a slice-bundles link between a first node and a second node, wherein, the slice-bundles link comprises at least one member link between the first node and the second node;
- and
- configuring a packet service for the slice-bundles link,
- wherein before creating the slice-bundles link between the first node and the second node, the method further comprises:
- creating the at least one member link between the first node and the second node;
- and
- configuring, for each member link of the at least one member link, a slice to which the member link belongs, and configuring, for each node of the first node and the second node, a slice to which the node belongs,
- wherein, the creating the slice-bundles link between the first node and the second node comprises creating interconnected slice-bundles interfaces on the first node and the second node, respectively, and adding the at least one member link to the slice-bundles interfaces as a member interface, and wherein, an IP address is configured and an interior gateway protocol (IGP) is enabled on the slice-bundles interfaces;
- the method further comprising:
- flooding link state information and maintaining a consistent link state database on each node;
- wherein, the link state database records the flooded link state information, and the link state information carries a slice attribute of each node and carries state information and a slice attribute of each member link;
- and
- performing slice path calculation based on the link state database;
- wherein the performing slice path calculation comprises:
- performing a constrained shortest path first (CSPF) calculation to calculate a shortest path from the first node to all other destination nodes in the first slice to which the first node belongs, wherein, constraint conditions for performing the CSPF calculation are {slice-id of the first slice, igp-metric is the smallest};
- and the calculation comprises:
- matching a slice attribute of each member link contained in the slice-bundles link and a slice attribute of each node according to the constraint conditions to obtain an optimal next hop forwarded by the shortest path of the first slice.
14 more elements
A non-transitory computer-readable storage medium stored with an information processing program, wherein, when executed by a processor, the information processing program implements a method for creating network slices, wherein, the method comprises:
- creating a slice-bundles link between a first node and a second node, wherein, the slice-bundles link comprises at least one member link between the first node and the second node;
- and
- configuring a packet service for the slice-bundles link,
- wherein before creating the slice-bundles link between the first node and the second node, the method further comprises:
- creating the at least one member link between the first node and the second node;
- and
- configuring, for each member link of the at least one member link, a slice to which the member link belongs, and configuring, for each node of the first node and the second node, a slice to which the node belongs,
- wherein, the creating the slice-bundles link between the first node and the second node comprises creating interconnected slice-bundles interfaces on the first node and the second node, respectively, and adding the at least one member link to the slice-bundles interfaces as a member interface, and wherein, an IP address is configured and an interior gateway protocol (IGP) is enabled on the slice-bundles interfaces;
- the method further comprising:
- flooding link state information and maintaining a consistent link state database on each node;
- wherein, the link state database records the flooded link state information, and the link state information carries a slice attribute of each node and carries state information and a slice attribute of each member link;
- and
- performing slice path calculation based on the link state database;
- wherein the performing slice path calculation comprises:
- performing a constrained shortest path first (CSPF) calculation to calculate a shortest path from the first node to all other destination nodes in the first slice to which the first node belongs, wherein, constraint conditions for performing the CSPF calculation are {slice-id of the first slice, igp-metric is the smallest};
- and the calculation comprises:
- matching a slice attribute of each member link contained in the slice-bundles link and a slice attribute of each node according to the constraint conditions to obtain an optimal next hop forwarded by the shortest path of the first slice.
14 more elements
Dependencies are inferred from the claim text.