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1 配置幀中繼交換機(jī)


本實(shí)驗(yàn)是配置普通路由器作為幀中繼交換機(jī)使用,以便為本章的其他實(shí)驗(yàn)提供一個(gè)幀中繼的實(shí)驗(yàn)環(huán)境 。
1.實(shí)驗(yàn)?zāi)康?br /> 通過(guò)本實(shí)驗(yàn),讀者可以把握以下技能:
●配置只有2個(gè)節(jié)點(diǎn)的幀中繼環(huán)境;
●配置星型的幀中繼環(huán)境;
●配置全網(wǎng)狀的幀中繼環(huán)境;
●熟悉相關(guān)的查看和監(jiān)測(cè)命令 。
2.設(shè)備需求
本實(shí)驗(yàn)需要以下設(shè)備:
●具有3個(gè)以上串行接口的路由器1臺(tái);
●3條DCE類型串行電纜;
●1臺(tái)帶有超級(jí)終端程序的PC機(jī),以及Console電纜及轉(zhuǎn)接器 。
3.線纜連接及配置說(shuō)明
本實(shí)驗(yàn)的線纜連接如圖8.1所示,把PC機(jī)通過(guò)Console電纜連接到路由器的Console端口上,即完成了線纜的連接 。
圖8-1也標(biāo)出了配置有2節(jié)點(diǎn)的幀中繼環(huán)境的DLCI值 。
4.實(shí)驗(yàn)配置及監(jiān)測(cè)結(jié)果
第1步:配置有2個(gè)節(jié)點(diǎn)的幀中繼環(huán)境
實(shí)驗(yàn)1的第1步是配置有2個(gè)節(jié)點(diǎn)的幀中繼環(huán)境,它的配置較為簡(jiǎn)單,其配置見(jiàn)配置清單8-1 。
配置清單8-1 配置有2個(gè)節(jié)點(diǎn)的幀中繼環(huán)境
第1段:配置有2個(gè)節(jié)點(diǎn)的幀中繼環(huán)境
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service passWord-encryption
!
hostname FR_S witch
ip subnet-zero
no ip domain-lookup
frame-relay switching
!
interface Serial0
 no ip address
 shutdown
!
interface Serial 1
 no Ip address
 encapsuSatlois frame-relay
 dockrate 64000
 frame-relay lmi-type dsco
 frame-relay Intf-type dee
 frame-relay route 102 Interface Serlal2 201
!
interface Serial2
 no ip address
 encapsulation frame-relay
 clockrate 64000
 frame-relay Imi-type cisco
 frame-relay intf-type dee
 frame-relay route 201 interface Seriall 102
!
interface Serial3
 no ip address
 shutdown
!
line con 0
line aux 0
 transport input all
line vty 0 4
 login
!
end
第2段:查看有關(guān)信息
FR_Switch#sh fr route
Input Intf Input Dici Output IntfOutput DiciStatus
Serial1102Serial2 201 inactive
Serial2201Serial1 102 inactive
FR_Switch#sh fr lmi
LMI Statistics for interface Serial1(Frame Relay DCE)LMI TYPE=CISCO
 Invalid Unnumbered info 0Invalid 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. Rcvd 0Num Status msgs Sent 0
 Num Update Status Sent 0 Num St Enq. Timeouts 0
LMI Statistics for interface Serial2(Frame Relay DCE)LMI TYPE=CISCO
 Invalid Unnumbered info 0Invalid 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. Rcvd 0 Num Status msgs Sent 0
 Num Update Status Sent 0 Num St Enq. Timeouts 154
FR_Switch#sh fr pvc
PVC Statistics for interface Serial1(Frame Relay DCE)
ActiveInactive DeletedStatic
Local 0 00 0
Switched 0 1 0 0
Unused0 0 00
DLCI=102,DLCI USAGE-SWITCHED,PVC STATUS=INACTIVE,INTERFACE=Serial1
 input pkts 0 output pkts 0 in bytes 0
 out bytes 0dropped pkts 0in FECN pkts 0
 in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
 in DE pkts 0out DE pkts 0
 out beast pkts 0out beast bytes 0Num Pkts Switched 0
 pvc create time 00:39:51, last time pvc status changed 00:39:51
PVC Statistics for interface Serial2(Frame Relay DCE)

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