Patent ID: 11863653
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 7:
8. A protocol processing method, comprising:
carrying a leaf-transfer capability identifier in a routing in fat tree (RIFT) protocol, wherein the leaf-transfer capability identifier is configured to indicate that, a first node, that is a leaf node carrying the leaf-transfer capability identifier, supports other leaf nodes within a network to access the network through the first node, and transfers messages to other nodes;
establishing a neighbor relation between two leaf nodes carrying the leaf-transfer capability, wherein in response to all the leaf nodes in a subnet of the network supporting the leaf-transfer capability, a current link, which is an east-west link, supports the leaf-transfer capability;
flooding, by the leaf node with a northbound neighbor node, a prefix learned from a prefix southbound topology information element (Prefix S-TIE) of the neighbor node of the leaf node on the link supporting the leaf-transfer capability via a Prefix TIE; and
selecting, by the leaf node with the northbound neighbor node for a route with a same prefix, in response to that the route contains an egress interface and a next hop pointing to the northbound neighbor as well as an egress interface and a next hop pointing to an east-west neighbor, the egress interface and the next hop pointing to the northbound neighbor.