Patent ID: 11888722
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A route advertisement method implemented by a first network device in a network, wherein the route advertisement method comprises:
receiving Border Gateway Protocol (BGP) service routing information from a second network device in the network, wherein the BGP service routing information comprises a destination address and a next-hop address to the destination address, wherein a cross-domain end-to-end tunnel carries a service in the network, wherein the cross-domain end-to-end tunnel crosses at least two Interior Gateway Protocol (IGP) network domains, and wherein the at least two IGP network domains comprise the first network device, the second network device, and a third network device;
skipping performing route recursion on the next-hop address before advertising the BGP service routing information to the third network device; and
advertising the BGP service routing information to the third network device.