中国电信：深圳市IP 城域网方案

小乔

一、设计原则..................................................................................................................................................................4
二、设备用途说明和命名规则......................................................................................................................................8
2.1 SITE 代码..............................................................................................................................................................8
2.2 设备命名规则......................................................................................................................................................8
2.3 设备用途描述......................................................................................................................................................9
三、网络架构................................................................................................................................................................13
3.1 核心骨干模块(BACKBONE) ...............................................................................................................................13
3.2 INTERNET(163/169)连接点模块.........................................................................................................................15
3.3 IPVPN 服务模块...............................................................................................................................................16
3.4 商业 INTERNET 接入模块..................................................................................................................................20
3.5 小区 INTERNET 接入模块..................................................................................................................................22
3.6 政府上网接入模块............................................................................................................................................24
3.7 主机托管模块....................................................................................................................................................25
四、设备互连................................................................................................................................................................27
4.1 远程连接............................................................................................................................................................27
4.2 本地连接............................................................................................................................................................27
4.3 设备插槽分配策略............................................................................................................................................28
4.4 VLAN 编号和用途说明....................................................................................................................................28
五、IP 地址...................................................................................................................................................................31
5.1 IP 地址模式.......................................................................................................................................................31
5.2 域内路由协议(IGP)...........................................................................................................................................31
5.3 IP 地址分配.......................................................................................................................................................31
5.4 IP 子网规划.......................................................................................................................................................32
六、和 163/169 的连接.................................................................................................................................................34
6.1 缺省路由............................................................................................................................................................34
6.2 EBGP 出口路由设计.........................................................................................................................................35
6.3 在多出口上实现流量均衡................................................................................................................................35
七、MPLS VPN PE-CE 的连接..................................................................................................................................37
八、VPN 的INTERNET 接入....................................................................................................................................39
8.1 VPN INTERNET 网关..........................................................................................................................................39
8.2 VPDN FOR VPN.................................................................................................................................................41
九、NMS 网段.............................................................................................................................................................43
十、安全控制................................................................................................................................................................46
十一、QOS....................................................................................................................................................................49
11.1 可选择的工具...................................................................................................................................................49
11.2 实现的模型.......................................................................................................................................................50
附件一：IP 地址分配计划表.......................................................................................................................................54
附件二：小区INTERNET 接入方案..........................................................................................................................59
1、SSO（SERVICE-SIGN-ON）系统..........................................................................................................................59
2．REDBACK SMS 宽带接入服务器.........................................................................................................................63
3．两种方式的比较。..............................................................................................................................................64
附件三：图表................................................................................................................................................................66

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