填空题 下面是某路由器的部分配置信息，解释(n)处标有下划线部分的含义。
[配置路由器信息]
Current configuration:
!
Version11.3
No service password-encryption
!
Hostname router1 (6)
!
Enable password nwd12345 (7)
!
Interface Ethernet 0
Ip address 192.4.1.1 255.255.255.0
!
Interface serial 0
Ip address 192.3.1.1 255.255.255.0
Encansulation frame-relay IETF
No ip mroute-cache
Bandwidth 2000
Frame-relay map ip 192.3.1.2 100 broadcast
Frame-relay lmi-type cisco
!
Router ospf1 (8)
Network 192.1.1.0 0.0.0.255 area0 (9)
Network 192.1.3.0 0.0.0.255 area0
Network 192.1.4.0 0.0.0.255 area0
Neighbor 192.1.1.2 (10)