幀中繼更具體配置信息

一、點到點：
點對點幀中繼配置時，需注意：
（DLCI）數據鏈路標識符要“有來有回”也就是說數據就像在一個
管道中流動不能只想一個方向流動,這樣的話就達不到通信的效果了，
所以，要雙向流動（即：（DLCI）數據鏈路標識符要“有來有回”）;
另外,在來回的兩個端口ip地址需要在同一個網段；

 

路由器R1配置信息：
第一步進入物理接口，該封裝，設置時鐘速率，並啓動：
R1(config)#interface serial 0/0/1
R1(config-if)#encapsulation frame-relay
R1(config-if)#clock rate 128000
R1(config-if)#no shutdown

第二步進入子接口，設置爲點對點模式：
R1(config)#interface serial 0/0/1.1 point-to-point

第三步配置子接口ip地址：
R1(config-subif)#ip address 10.1.3.1 255.255.255.0

第四步進行端口地址映射：

R1(config-subif)#frame-relay interface-dlci 103
R1(config-subif)#exit
以下重複二、三、四步：
R1(config)#interface serial 0/0/1.2 point-to-point

R1(config-subif)#ip address 10.1.5.1 255.255.255.0

R1(config-subif)#frame-relay interface-dlci 105

R1(config-subif)#end
%SYS-5-CONFIG_I: Configured from console by console
R1#ping 10.1.3.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.3.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 46/53/63 ms

R1#

路由器R3配置信息：

R3(config)#interface serial 0/0/0

R3(config-if)#encapsulation frame-relay

R3(config-if)#clock rate 128000

R3(config-if)#no shutdown

%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up
R3(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R3(config-if)#exit
R3(config)#

R3(config)#interface serial 0/0/0.1 point-to-point

R3(config-subif)#ip address 10.1.3.2 255.255.255.0

R3(config-subif)#frame-relay interface-dlci 301
R3(config-subif)#exit
R3(config)#

R3(config)#interface serial 0/0/0.2 point-to-point

R3(config-subif)#ip address 10.3.5.1 255.255.255.0

R3(config-subif)#frame-relay interface-dlci 305
R3(config-subif)#end
%SYS-5-CONFIG_I: Configured from console by console
R3#ping 10.1.3.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.3.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 62/62/63 ms

R3#

路由器R5配置信息：

Router(config)#interface serial 0/0/0

Router(config-if)#encapsulation frame-relay

Router(config-if)#clock rate 128000

Router(config-if)#no shutdown

%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up
Router(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
Router(config-if)#ex
Router(config)#

Router(config)#interface serial 0/0/0.1 point-to-point

Router(config-subif)#ip address 10.1.5.2 255.255.255.0

Router(config-subif)#frame-relay interface-dlci 501
Router(config-subif)#exit
Router(config)#

Router(config)#interface serial 0/0/0.2 point-to-point

Router(config-subif)#ip address 10.3.5.2 255.255.255.0

Router(config-subif)#frame-relay interface-dlci 503
Router(config-subif)#end
%SYS-5-CONFIG_I: Configured from console by console
Router#ping 10.3.5.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.3.5.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 125/128/141 ms

 

二、點到多點：
點到多點幀中繼配置較簡單：

仍需注意，數據流是有去有回的！！！

路由器R3配置信息：
第一步同樣進入物理接口改封裝，設速率，啓動：

R3(config)#interface serial 0/1/1

R3(config-if)#encapsulation frame-relay

R3(config-if)#clock rate 128000

R3(config-if)#no shutdown

R3(config-if)#ex
R3(config)#

第二步進入邏輯接口，並設置其爲點到多點模式，並設置好ip地址：
R3(config)#interface serial 0/1/1.1 multipoint

R3(config-subif)#ip address 172.16.134.3 255.255.255.0
第三步地址映射
R3(config-subif)#frame-relay map ip 172.16.134.1 103
R3(config-subif)#frame-relay map ip 172.16.134.2 104
R3(config-subif)#end
%SYS-5-CONFIG_I: Configured from console by console
R3#ping 172.16.134.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.134.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 62/62/63 ms

R3#ping 172.16.134.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.134.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 62/62/63 ms

R3#

 

路由器R1配置信息：

R1(config)#interface serial 0/1/1

R1(config-if)#encapsulation frame-relay

R1(config-if)#clock rate 128000

R1(config-if)#no shutdown

R1(config-if)#exit
R1(config)#
R1(config)#interface serial 0/1/1.1 multipoint

R1(config-subif)#ip address 172.16.134.1 255.255.255.0

R1(config-subif)#frame-relay map ip 172.16.134.2 304
R1(config-subif)#frame-relay map ip 172.16.134.3 301
R1(config-subif)#

路由器R4配置信息：

Router(config)#interface serial 0/0/0

Router(config-if)#clock rate 128000

Router(config-if)#encapsulation frame-relay

Router(config-if)#no shutdown

Router(config-if)#ex
Router(config)#

Router(config)#interface serial 0/0/0.1 multipoint

Router(config-subif)#ip address 172.16.134.2 255.255.255.0

Router(config-subif)#frame-relay map ip 172.16.134.1 403
Router(config-subif)#frame-relay map ip 172.16.134.3 401
Router(config-subif)#

 

OK！！！！！！！！！！搞定了！！！！！！！！！！！！！！！