Patent ID: 11924094
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. The construction method according to claim 16, wherein after constructing the context label forwarding table entry for the first VPN label, the method further comprises:
constructing a second VPN route according to the received first VPN route, wherein a next hop of the second VPN route is the current PE node, a value of a second VPN label of the second VPN route is the same as the value of the first VPN label, the second VPN route carries a first predetermined route attribute and a second predetermined route attribute, the first route attribute is used for notifying the PE node that receives the second VPN route of information that the second VPN label is in the context label space which is identified by the virtual circuit label determined by the second predetermined route attribute, and the second predetermined route attribute carries information used for determining the virtual circuit label.