帧中继技术.docx
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帧中继技术
ROUTER1------------ATM-1----------ATM2------------ROUTER2
155MATM接口 TRUNK 2MFR接口
帧中继技术是一种在可靠介质上实现的快速分组交换的技术（也是当前主流的专线技术之一），它能为现今突发性业务流量（如LAN互连）提供显著的性能价格优势。
同时帧中继也是一种广域网接口协议，工作在数据链路层上，它有以下几个特点：
低时延、可靠性、低开销、可预测性、公平性。
配置帧中继的工作的一般步骤：
1、在一个端口上作帧中继打包，即封装帧中继协议
2、定义动态或静态的地址映射
3、定义LMI类型
4、配置帧中继交换虚电路
discur //显示当前路由器配置
Nowcreateconfiguration...
Currentconfiguration
!
version1.74 //VRP版本号1.74
sysnamedeepblue //路由器名称
firewallenable //防火墙功能开启
aaa-enable //认证、授权、计费功能开启
aaaaccounting-schemeoptional
!
controllere10 //配置E1模块生成逻辑接口
usingE1 //非成帧E1
!
interfaceAux0-protocolppp //辅助接口默认链路协议为ppp
!
interfaceEthernet0 //内部网口
speed100 //速率100M
duplexfull //全双工
ipaddress10.34.185.1255.255.255.252 //接口ip地址
!
interfaceSerial0 //主机上自带的第一个同步串口
link-protocolppp //接口默认链路协议为ppp
!
interfaceSerial1 //主机上自带的第二个同步串口
link-protocolppp //接口默认链路协议为ppp
!
interfaceSerial2:
0 //E1逻辑接口
link-protocolfr /链路协议为FRAME-RELAY
ipaddress10.34.40.6255.255.255.252 //接口ip地址
frmapip10.34.40.5dlci168 //映射对端ip地址和dlci号的对应关系
frdlci168 //帧中继数据链路表示符为168
quit
!
quit
iproute-static0.0.0.00.0.0.010.34.40.5preference60//配置默认路由
!
return
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]disiproute
Incorrectcommand //命令输入不正确
[deepblue-Serial2:
0]disiprouting
RoutingTables:
Destination/Mask Proto Pref Metric Nexthop Interface 127.0.0.0/8 Direct 0 0 127.0.0.1LoopBack0 127.0.0.1/32 Direct 0 0 127.0.0.1LoopBl2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]disints2:
0 //显示接口状态
Serial2:
0currentstate:
up,lineprotocolcurrentstate:
down//链路协议未协商成功
TheMaximumTransmitUnitis1500
InternetAddressis10.34.40.6（30）
physicallayerisE1,baudrateis2048000bps
Link-protocolisFRAME-RELAYIETF//封装帧中继类型为IETF
MIDLCI0 LMItypeMIstatusenqsent1042,statusreceived11
LMIstatussent
0,statusenqreceived0
LMIstatusdiscarded0,statusenqdiscarded0,statustimeuts1029
InputDataQueue:
（size/max/drops）:
0/75/0
Inputqueue:
（size/max/drops） 0/50/0
FIFOqueue:
0/1000/0（size/max/drops）
（Outboundquee:
Size/Length/Discards）
FIFO:
0/75/0
Last5minutesinputrate0.84bytes/sec,0.04packets/sec
Last5minutesoutputrate1.72bytes/sec,0.11packets/sec
Input:
14packets,254bytes 0errors,0runts,0giants
0CRC,0frameerrors,0overrunners
0abortedsequences0nobuffers 0 paected
Output:
29447packets,524883bytes0errors,0underruns,0collisions 0packets
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]disfrlmi //显示frame-relay的本地管理接口状态
Serial2:
0（Interface-type:
DTE）
1043statusenquirysent,11statusreceived
0statusdiscarded,1030statustimeouts
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]ints2:
0 //进入逻辑接口配置模式
[deepblue-Serial2:
0]frlmiansi//修改本地管理接口类型为ansi
[deepblue-Serial2:
0]
%22:
57:
24:
LineprotocolipontheinterfaceSerial2:
0isUP//frame-relay与对端链路协商成功
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]ping10.34.40.5 //测试对方ip地址连通性
PING10.34.40.6:
56 databytes,pressCTRL_Ctobreak
Replyfrom10.34.40.6:
bytes=56Sequence=0ttl=255time=1ms
Replyfrom10.34.40.6:
bytes=56Sequence=1ttl=255time=2ms
Replyfrom10.34.40.6:
bytes=56Sequence=2ttl=255time=2ms
Replyfrom10.34.40.6:
bytes=56Sequence=3ttl=255time=1ms
Replyfrom10.34.40.6:
bytes=56Sequence=4ttl=255time=1ms
---10.34.40.6pingstatistics---
5packetstransmitted
5packetsreceived
0.00%packetloss
round-tripmin/avg/max=1/1/2ms
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]disiprouting //显示当前路由表
RoutingTables:
Destination/Mask Proto Pref Metric Nexthop Interface
0.0.0.0/0 Static 60 0 10.34.40.5Serial2:
0 10.34.40.4/30 Direct 0 0 10.34.40.6Serial2:
0 rect 0 0 127.0.0.1LoopBack0 127.0.0.0/8 Direct 0 0 127.0.0.1LoopBack0 127.0.0.1/32 Direct 0 0 127.0.0.1LoopBack0
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]disints2:
0
Serial2:
0currentstate:
up,lineprotocolcurrentstate:
up
TheMaximumTransmitUnitis1500
InternetAddressis10.34.40.6（30）
physicallayerisE1,baudrateis2048000bps
Link-protocolisFRAME-RELAYIETF
LMIDLCI0 LMI LMIstatusenqsent1052,statusreceived18
LMIstatussent
0,statusenqreceived0
LMIstatusdiscarded0,statusenqdiscarded0,statustimeouts1032
InputDataQueue:
（size/max/drops）:
0/75/0
Inputqueue:
（size/max/drIFO
DataFragmentqueue:
0/1000/0（size/max/drops）
（Outboundqueue:
Size/Length/Discards）
FIFO:
0/75/0
Last5minutesinputrate0.84bytes/sec,0.04packets/sec
Last5minutesoutputrate1.72bytes/sec,0.11packet362bytes
0broadcasts,0multicasts
0errors,0runts,0giants
0CRC,0frameerrors,0overrunners
0abortedsequences0nobuffers
0packetswithdribbleconditiondetected
Output:
29457packets,525020bytes
0broadcasts,0multicasts
0errors,0underruns,0collisions
0packetshadbeendeferred
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]dislmi
Serial2:
0（Interface-type:
DTE）
1054statusenquirysent,20statusreceived
0statusdiscarded,1032statustimeouts
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]disfrpvc
PVCStatisticsforinterfaceSerial2:
0（Interface-type:
DTE）
DLCI=168 PVCState=Active Input:
BECNpkts:
0 FECNpkts:
0 pkts:
2 bytes:
60
Output:
pkts:
2 bytes:
60
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]ping10.34.40.5
PING10.34.40.5:
56 databytes,pressCTRL_Ctobreak
Replyfrom10.34.40.5:
bytes=56Sequence=0ttl=255time=6ms
Replyfrom10.34.40.5:
bytes=56Sequence=1ttl=255time=5ms
Replyfrom10.34.40.5:
bytes=56Sequence=2ttl=255time=5ms
Replyfrom10.34.40.5:
bytes=56Sequence=3ttl=255time=5ms
Replyfrom10.34.40.5:
bytes=56Sequence=4ttl=255time=5ms
---10.34.40.5pingstatistics---
5packetstransmitted
5packetsreceived
0.00%packetloss
round-tripmin/avg/max=5/5/6ms
[deepblue-Serial2:
0]
[deepblue-Serial2:
0]
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