按照路由协议的默认设置,关于192.168.10.0 和 192.168.11.0 的信息到被删除还能存在的最大时间是多少( )?Router_B#show ip route Codes:C-connected,s-static,I-IGRP,R-RIP,M-mobile,B-BGP,DEIGRP,
EX-EIGRP external,
O-OSPF,IA-OSPF inter area,EI-OSPF external typel,E2-OSPF external type2,E-EGP,
I-IS_IS,L1-IS_IS LeveL-1,L2-IS_IS Level-2,*-candidate default,U-per-user static route
Gateway of last resort is not set
R 192.168.8.0/24[120/1] via 192.168.2.2,00:00:16,Serial 0
C.192.168.9.0/24 is directly connected,Serial 1
R 192.168.10.0/24 is possibly down,routing via 192.168.9.1 Serial 1
R 192.168.11.0/24 is possibly down,routing via 192.168.9.1 Serial 1
C 192.168.1.0/24 is directly connected,Ethernet 0
C 192.168.2.0/24 is directly connected,Serial 0
R 192.168.3.0/24[120/1] via 192.168.2.2,00:00:17,Serial 0
R 192.168 4.0/24[120/15] via 192.168.2.2,00:00:17.Serial 0
R 192.168.5.0/24[120/15] via 192.168.2.2,00:00:17.Serial 0
R 192.168.6.0/24[120/15] via 192.168.2.2,00:00:17.Serial 0
R 192.168.7.0/24[120/1] via 192.168.2.2,00:00:17.Serial 0
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