高速公路数据网络的底层扩展设计

Understratum extended design of data network in expressway

摘要: 在分析了现行高速公路数据网络的基础上, 针对高速公路省域内的联网收费要求, 提出了数据网络底层扩展的全新技术模型, 并结合工程实践给出了两种实现方案, 列举了方案实现的关键配置。
- 数据网络 /
- 高速公路 /
- 底层 /
- 设计
Abstract: This paper analyses the existing expressway data network, presents a new model based on the data network extended understratum, and gives out two achieved project, enumerates the key configure.
- data network /
- expressway /
- understratum /
- design

图 1 路网的四级管理结构

Figure 1. Four degree management structure of route net

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图 2 高速公路数据网络的链型结构

Figure 2. The chain structure of data network in expressway

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图 3 光纤直连模式

Figure 3. Fiber direct connection mode

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图 4 IP子网的三层交换解决方案

Figure 4. The layer 3 switch solution based on IP subnet

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图 5 采用VLAN的两层交换解决方案

Figure 5. The layer 2 switch solution based on VLAN

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图 6 VLAN的划分交换

Figure 6. division switch of VLAN

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表 1 VLAN1的群组端口设置

Table 1. VLAN1's configuration of group ports

VLAN Configuration
Create VLAN: [1]			VLAN Type: [Port-Based]
Delete VLAN: [ ]			Protocol ID (PID) : [None]
VLAN Name: [VLAN#1]			User-Defined PID: [0×0000]
Management VLAN: [Yes]			VLAN State: [Active]
Port Membership
	1-6	7-12		13-18	19-24
	……	……		……	……
Unit#1	UUUUUU	UUUUUU		UUUUUU	UUUUUU
KEY: T为Tagged Port Member, U为Untagged Port Member, “……”为Not a Member of VLAN
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表 2 指定端口15为PVID=1的标识

Table 2. Assigning the 15^thport's tag being PVID=1

VLAN Port Configuration
Port:	[15]
Filter Tagged Frames:	[No]
Filter Untagged Frames:	[No]
Filter Unregistered Frames: [No]
Port Name:	[Port 15]
PVID:	[1]
Port Priority:	[0]
Tagging:	[Untagged Access]
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[2]	Tarek N Saadawi, 黄岩. 远程通信网络基础[M]. 北京: 电子工业出版社, 1996.
[3]	孙大跃, 江代有. 高速公路网络工程技术[M]. 北京: 人民交通出版社, 2001.