摘要
传统的宽带接入网采用专网专用的方式,容易造成资源浪费。为实现同一OLT机框多业务的隔离承载,和多租户的共同租用等使用场景,虚拟化OLT成为解决问题的关键。本文提出一种基于网络切片的vOLT接入网设计方案,基于现有OLT硬软件架构,在软件业务配置层面上,创建虚拟层,实现OLT的切片管理功能。在现有业务流上增加切片标签vs_id,实现管理,控制平面的隔离。切片在创建时会被分配一个特殊VLAN,此VLAN作为虚拟OLT标签,实现vOLT内部切片间业务转发隔离。最终从逻辑上划分OLT。
The traditional broadband access network uses the way of dedicated network,which easily causes waste of resources. Virtualized OLT becomes the key to solve the problem in order to realize the isolation of multiple services in the same OLT frame and multi-tenancy scenarios. This paper presents a design scheme of VOLT access network based on network slicing. Based on the existing OLT hardware and software architecture,the virtual layer is created at the software business configuration level to realize the slice management function of OLT. The slice label vs_id is added to the existing traffic flow to realize management and control plane isolation.Slices are assigned a VOLT VLAN when they are created. This VLAN serves as a virtual OLT tag to realize service forwarding isolation between slices within v OLT. Finally,OLT is logically divided.
作者
丁宇
张宏进
DING Yu;ZHANG Hongjin(Wuhan Research Institute of Posts and Telecommunications,Wuhan,430074,China;Fiberhome Telecommunication Technologies Co.,Ltd,Wuhan,430074,China)
出处
《网络新媒体技术》
2020年第1期27-32,共6页
Network New Media Technology
关键词
宽带接入网
虚拟化
VOLT
切片管理
Broadband access network
Virtualization
vOLT
Slicing function
作者简介
丁宇,(1991-),男,硕士,主要研究方向为光通信系统;张宏进,(1967-),男,硕士,主要研究方向为光通信系统。
