AR系列路由器通过帧中继网络互连局域网的典型配置

 AR系列路由器通过帧中继网络互连局域网的典型配置

【需求】

Router A作为总部和分支Router B和C通过FR互连。

【组网图】

 

 

【配置脚本－静态映射方式】

RouterA配置脚本

# sysname RouterA # radius scheme system # domain system # interface Serial1/0/0 link-protocol fr                /配置封装方式为FR，默认为DTE/ fr map ip 202.38.163.252 50     /配置到RTB的静态地址映射/ fr map ip 202.38.163.253 60     /配置到RTC的静态地址映射/ ip address 202.38.163.251 255.255.255.0 # interface Ethernet0/0/0 ip address 192.168.1.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

RouterB配置脚本

# sysname RouterB # radius scheme system # domain system # interface Serial1/0/0 link-protocol fr                /配置封装方式为FR，默认为DTE/ fr map ip 202.38.163.251 70     /配置到RTA的静态地址映射/ ip address 202.38.163.252 255.255.255.0 # interface Ethernet0/0/0 ip address 192.168.2.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

RouterC配置脚本

# sysname RouterC # radius scheme system # domain system # interface Serial1/0/0 link-protocol fr                /配置封装方式为FR，默认为DTE/ fr map ip 202.38.163.251 80     /配置到RTA的静态地址映射/ ip address 202.38.163.253 255.255.255.0 # interface Ethernet0/0/0 ip address 192.168.3.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

FR交换机配置脚本

# sysname FR-switch # fr switching                     /启用FR交换功能/ # radius scheme system # domain system # interface Serial2/0/0 link-protocol fr fr interface-type dce           /配置接口类型为DCE/ fr dlci 50 fr dlci 60 # interface Serial2/0/1 link-protocol fr fr interface-type dce           /配置接口类型为DCE/ fr dlci 70 # interface Serial2/0/2 link-protocol fr fr interface-type dce           /配置接口类型为DCE/ fr dlci 80 # interface NULL0 # fr switch A-B interface Serial2/0/0 dlci 50 interface Serial2/0/1 dlci 70                                              /配置RTA和RTB的帧中继交换的PVC/ fr switch A-C interface Serial2/0/0 dlci 60 interface Serial2/0/2 dlci 80                                              /配置RTA和RTC的帧中继交换的PVC/ # user-interface con 0 user-interface vty 0 4 # return

 

【配置脚本－动态映射方式】

RouterA配置脚本

# sysname RouterA # radius scheme system # domain system # interface Serial1/0/0 link-protocol fr                /配置封装方式为FR，默认为DTE/ ip address 202.38.163.251 255.255.255.0 # interface Ethernet0/0/0 ip address 192.168.1.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

RouterB配置脚本

# sysname RouterB # radius scheme system # domain system # interface Serial1/0/0 link-protocol fr                /配置封装方式为FR，默认为DTE/ ip address 202.38.163.252 255.255.255.0 # interface Ethernet0/0/0 ip address 192.168.2.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

RouterC配置脚本

# sysname RouterC # radius scheme system # domain system # interface Serial1/0/0 link-protocol fr                /配置封装方式为FR，默认为DTE/ ip address 202.38.163.253 255.255.255.0 # interface Ethernet0/0/0 ip address 192.168.3.1 255.255.255.0 # interface NULL0 # user-interface con 0 user-interface vty 0 4 # return

FR交换机配置脚本

# sysname FR-switch # fr switching                     /启用FR交换功能/ # radius scheme system # domain system # interface Serial2/0/0 link-protocol fr fr interface-type dce           /配置接口类型为DCE/ fr dlci 50 fr dlci 60 # interface Serial2/0/1 link-protocol fr fr interface-type dce           /配置接口类型为DCE/ fr dlci 70 # interface Serial2/0/2 link-protocol fr fr interface-type dce           /配置接口类型为DCE/ fr dlci 80 # interface NULL0 # fr switch A-B interface Serial2/0/0 dlci 50 interface Serial2/0/1 dlci 70                                              /配置RTA和RTB的帧中继交换的PVC/ fr switch A-C interface Serial2/0/0 dlci 60 interface Serial2/0/2 dlci 80                                              /配置RTA和RTC的帧中继交换的PVC/ # user-interface con 0 user-interface vty 0 4 # return

 

【验证】

总部和分部可以相互ping通对方

静态映射方式RouterA的FR map:

<RouterA>disp fr map

PVC map Statistics for interface Serial1/0/0 (DTE)

DLCI = 50, IP 202.38.163.252, Serial1/0/0

create time = 2006/07/16 03:12:36, status = ACTIVE

encapsulation = ietf, vlink = 1

DLCI = 60, IP 202.38.163.253, Serial1/0/0

create time = 2006/07/16 03:12:36, status = ACTIVE

encapsulation = ietf, vlink = 2

 

动态映射方式RouterA的FR map:

[RouterA]disp fr map

PVC map Statistics for interface Serial1/0/0 (DTE)

DLCI = 50, IP INARP 202.38.163.252, Serial2/0/0

create time = 2006/07/16 03:41:39, status = ACTIVE

encapsulation = ietf, vlink = 4, broadcast

DLCI = 60, IP INARP 202.38.163.253, Serial1/0/0

create time = 2006/07/16 03:41:39, status = ACTIVE

encapsulation = ietf, vlink = 3, broadcast

 

FR交换机的FR交换表：

<FR-switch>disp fr switch-table all                                            

Total PVC switch records:2                                                     

PVC-Name                       Status   Interface(Dlci) <-----> Interface(Dlci)

A-B                            Active   Serial2/0/0(50)         Serial2/0/1(70)

A-C                            Active   Serial2/0/0(60)         Serial2/0/2(80)

 

【提示】

1.      DLCI号只具有本地意义，非全局参数，需要运营商提供该参数。

2.      帧中继网络用户接口上最多可支持1024条虚电路，其中用户可用的DLCI范围是16～1007。

3.      缺省情况下，系统允许对IP和IPX协议进行逆向地址解析。

4.      当路由器和本地FR交换机的协商通过后，link protocol就会up，但是并部表示端到端可以通信。