拓扑图:配置:R1:hostnameR1!interfaceLoopback0ipaddress1.1.1.1255.255.255.0!interfaceSerial0/0ipaddress12.1.1.1255.255.255.0serialrestart-delay0!interfaceSerial0/1ipaddress13.1.1.1255.255.255.0serialrestart-delay0routereigrp100network1.1.1.00.0.0.255network12.1.1.00.0.0.255network13.1.1.00.0.0.255metricweights000100noauto-summaryR2:interfaceSerial0/0ipaddress12.1.1.2255.255.255.0serialrestart-delay0!interfaceSerial0/1ipaddress24.1.1.2255.255.255.0delay20000serialrestart-delay0!routereigrp100passive-interfaceSerial0/0passive-interfaceSerial0/1network12.1.1.00.0.0.255network24.1.1.00.0.0.255metricweights000100noauto-summary!R3:interfaceSerial0/0ipaddress13.1.1.3255.255.255.0serialrestart-delay0!interfaceSerial0/1ipaddress34.1.1.3255.255.255.0serialrestart-delay0!routereigrp100network13.1.1.00.0.0.255network34.1.1.00.0.0.255metricweights000100noauto-summary!R4:interfaceLoopback0ipaddress4.4.4.4255.255.255.0!interfaceSerial0/0ipaddress24.1.1.4255.255.255.0serialrestart-delay0!interfaceSerial0/1ipaddress34.1.1.4255.255.255.0serialrestart-delay0!routereigrp100network4.4.4.00.0.0.255network24.1.1.00.0.0.255network34.1.1.00.0.0.255metricweights000100noauto-summary!实验步骤:1,从R4ping1000个包到R1的1.1.1.12,R3加电启用,不断网3,R2的s0/1接口延迟改成20000,把流量导入R34,然后passive-interfaces0/1和s0/0接口,让R2与R1,R4断掉邻居关系5,R2断电,撤掉设备6,之前把所有路由器的计算值改成:metricweights000100实验现象:在上述步骤之内,可能会丢包吗?????????????????????????答案是:不可能,impossible,大爷的,哈哈哈哈哈哈哈哈哈哈哈!!!!!!!!!!!!!!!!!!!!!!!!