Patent ID: 11936552
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A device for implementing Virtual Private Network (VPN) cross-domain, which is applied to a border node supporting Internet Protocol Version 6 Segment Routing (SRv6) capability, the device comprising a memory storing instructions and a processor in communication with the memory, wherein the processor is configured to execute the instruction to:
receive an advertisement message which carries VPN route information and is sent by a first node to a second node, wherein the first node and the second node belong to different domains; and
assign VPN identity information to a VPN route corresponding to the VPN route information, add the VPN identity information into the advertisement message, and send the advertisement message to the second node, wherein the VPN identity information comprises at least one of: a VPN Segment ID (SID) and a VPN label;
create a corresponding local SID forwarding entry for the assigned VPN SID, and set that a forwarding behavior of the local SID forwarding entry comprises swapping an incoming SRv6 SID to an outgoing SRv6 SID or Multiprotocol Label Switching (MPLS) label.