Method for sending and receiving message, network device and system

Abstract

The embodiment of the present invention provides a method for sending and receiving a message, a network device and a system. The method for sending a message includes: the first network device fragments the first Hello message, and each Hello fragment message sets There is a fragmentation number and a content identifier, and the first network device sends the fragmentation brief information of the first Hello message to the second network device, and the fragmentation brief information of the first Hello message includes each Hello fragment Fragment information of the fragment message; if the first network device receives the request message sent by the second network device, then send the Hello fragment corresponding to the first Hello message to the second network device message. The embodiment of the present invention also provides a network device and a system for sending and receiving the Hello message, and the technical solution provided by the embodiment of the present invention can effectively reduce the network bandwidth occupied by the sending of the Hello message.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for sending and receiving messages, network equipment and a system. Background technique [0002] Translucent Interconnection of Lots of Links (TRILL) is a Layer 2 network standard recommended by the Internet Engineering Task Force (IETF). It is a routing protocol based on link state calculations on Layer 2 networks. . In a TRILL network, each router bridge (RouterBridge, RB) device interacts with other RB devices in the network using Hello (Hello) messages, and will elect an RB as a Designated Router Bridge (Designated Router Bridge, DRB). The DRB is responsible for completing the forwarder designation (Appointed Forwarder, AF) and virtual local area network designation (Designated Virtual Local Area Network, Designated Vlan) functions by sending the Hello message. Like other routing protocols, TRILL also regularly discovers neighbors and maintains n...

AI Technical Summary

Problems solved by technology

[0003] With the continuous expansion of TRILL applications in TRILL networks, Hello packets may carry multiple types, lengths, and data (Type, Length, Value, TLV) information, such as: Enabled-VLANs Sub-TLV (Enabled-VLANs Sub-TLV) ) information, Appointed Forwarders Sub-TLV (Appointed Forwarders Sub-TLV) information, and TRILL Neighbor TLV (TRILLNeighbor TLV) information. The amount of information carried in Hello packets is increasing. Occupation is getting larger and larger, resulting in less and less bandwidth available for other service packets, seriously affecting the normal sending of service packets in the TRILL network

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