资源描述
步骤一:配置R4的为帧中继交换机。
R4(config)#frame-relay switching
R4(config)#interface serial 1/0
R4(config-if)#encapsulation frame-relay
R4(config-if)#frame-relay intf-type dce
R4(config-if)#frame-relay lmi-type cisco
R4(config-if)#frame-relay route 100 interface serial 1/1 101
R4(config-if)#clock rate 64000
R4(config-if)#no shutdown
R4(config-if)#exit
R4(config)#interface serial 1/1
R4(config-if)#encapsulation frame-relay
R4(config-if)#frame-relay intf-type dce
R4(config-if)#frame-relay lmi-type ansi
R4(config-if)#frame-relay route 101 interface serial 1/0 101
R4(config-if)#clock rate 64000
R4(config-if)#no shutdown
R4(config-if)#exit
步骤二:配置R1路由器
R1(config)#interface serial 1/2
R1(config-if)#encapsulation frame-relay
R1(config-if)#ip address 172.16.1.1 255.255.255.0
R1(config-if)#no shut
步骤三:配置R2路由器(假设R2的IOS版本为低于11.2)
R2(config)#interface serial 1/2
R2(config-if)#encapsulation frame-relay
R2(config-if)#frame-relay lmi-type ansi
R2(config-if)#ip address 172.16.1.2 255.255.255.0
R2(config-if)#no shut
步骤四:在R1使用show frame-realy lmi查看LMI的信令状态信息
R1#show frame-relay lmi
LMI Statistics for interface Serial1/2 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 32 Num Status msgs Rcvd 33
Num Update Status Rcvd 0 Num Status Timeouts 0
R1#
步骤五:在R1上查看PVC
R1#show frame-relay pvc
PVC Statistics for interface Serial1/2 (Frame Relay DTE)
Active Inactive Deleted Static
Local 0 0 0 0
Switched 0 0 0 0
Unused 1 0 0 0
DLCI = 100, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE = Serial1/2
input pkts 0 output pkts 1 in bytes 0
out bytes 34 dropped pkts 0 in pkts dropped 0
out pkts dropped 0 out bytes dropped 0
in FECN pkts 0 in BECN pkts 0 out FECN pkts 0
out BECN pkts 0 in DE pkts 0 out DE pkts 0
out bcast pkts 1 out bcast bytes 34
switched pkts 0
Detailed packet drop counters:
no out intf 0 out intf down 0 no out PVC 0
in PVC down 0 out PVC down 0 pkt too big 0
shaping Q full 0 pkt above DE 0 policing drop 0
pvc create time 00:08:21, last time pvc status changed 00:00:02
R1#
步骤六:在R1上查看反向ARP
R1#show frame-relay map
Serial1/2 (up): ip 172.16.1.2 dlci 100(0x64,0x1840), dynamic,
broadcast,, status defined, active
R1#
步骤七:在R1上ping R2
R1#ping 172.16.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 576/780/1312 ms
R1#
思考:
如果在步骤七发现无法PING通R2,可能是因为。R2的反向ARP的映射尚没有创建成功。所以我们手工的配置反向是ARP
手工静态映射的配置
步骤一:先查看R2的map,此时注意此映射为动态
R2#show frame-relay map
Serial1/2 (up): ip 172.16.1.1 dlci 101(0x65,0x1850), dynamic,
broadcast,, status defined, active
R2#
步骤二:配置为手工静态映射
R2(config)#interface serial 1/2
R2(config-if)#frame-relay map ip 172.16.1.1 101 broadcast
R2(config-if)#exit
步骤三:再次查看R2的MAP
R2#show frame-relay map
Serial1/2 (up): ip 172.16.1.1 dlci 101(0x65,0x1850), static,
broadcast,
CISCO, status defined, active
R2#
步骤四:确认
R2#ping 172.16.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 576/681/996 ms
R2#
思考:在R1上PING上自己的接口IP。是否可以PING通?为什么?如果解决?
回复 #2 stanley.wy 的帖子
谢谢lz ,今天学习Basic FrameRealy
步骤一:配置R4的为帧中继交换机。
R4(config)#frame-relay switching
R4(config)#interface serial 1/0
R4(config-if)#encapsulation frame-relay
R4(config-if)#frame-relay intf-type dce
R4(config-if)#frame-relay lmi-type cisco
R4(config-if)#frame-relay route 100 interface serial 1/1 101
R4(config-if)#clock rate 64000
R4(config-if)#no shutdown
R4(config-if)#exit
R4(config)#interface serial 1/1
R4(config-if)#encapsulation frame-relay
R4(config-if)#frame-relay intf-type dce
R4(config-if)#frame-relay lmi-type ansi
R4(config-if)#frame-relay route 101 interface serial 1/0 101 《--改:serial 1/0 100
R4(config-if)#clock rate 64000
R4(config-if)#no shutdown
R4(config-if)#exit
------------------
在R1上PING上自己的接口IP。是否可以PING通?为什么?如果解决?
ping 不通自身接口是因为没有做自身接口ip地址的map
R1(config)#int serial 1/0
R1(config-if)#frame-relay map ip 172.16.1.1 100 bro
R1#ping 172.16.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 64/97/128 ms
R1#
UID
8674
帖子
30
精华
0
积分
177
阅读权限
10
在线时间
34 小时
注册时间
2007-3-16
最后登录
2008-8-10
查看详细资料
展开阅读全文