BRAS (Broadband Remote Access Server) system-based message encapsulation method and device

Abstract

The present application discloses a BRAS (Broadband Remote Access Server) system-based message encapsulation method and device and belongs to the communication technical field. The method includes thefollowing steps that: when a user access protocol message is received, user access information corresponding to the user access protocol message is obtained; VXLAN (Virtual Extensible Local Area Network) GPE (Generic Protocol Extension) encapsulation is performed on the user access protocol message based on the user access information, wherein the numerical value of the encapsulation protocol field of a VXLAN GPE header in an VXLAN GPE encapsulation structure is a preset value, wherein the preset value is used to indicate that the encapsulation structure contains a user information header, wherein the user information header is used to store the user access information and directly follows the VXLAN GPE header, and bytes occupied by the user information header are fewer than or equal to 12 bytes. The above encapsulation structure is adopted to encapsulate a message; the encapsulated message has backward compatibility; and the bytes of the user information header are fewer than the bytes of an NSH (Network Service Header) when the user access information is carried, and therefore, encapsulation overhead is saved.

Description

technical field

[0001] The present application relates to the field of communication technologies, and in particular to a message encapsulation method and device based on a broadband remote access server (Broadband Remote Access Server, BRAS) system. Background technique

[0002] With the rapid increase in the number of household broadband users and the rapid development of new services such as ultra-high-definition television (4K) and virtual reality (VR), traditional BRAS systems are faced with huge challenges such as low resource utilization and complex management and maintenance. For this reason, communication operators propose a BRAS system that separates forwarding and control functions. That is to say, the user management and control functions implemented by multiple BRAS devices in the traditional BRAS system are centralized and separated, and realized by a dedicated server or server cluster. This dedicated server or server cluster is called broadband remote access. ...

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