lab 01-
trouble-shooting
everything was fine before lunch:
router_a
router_a#sh run
building configuration...
current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname router_a
!
interface ethernet0
ip address 172.16.4.17 255.255.255.240
!
interface ethernet1
no ip address
shutdown
!
interface serial0
ip address 10.16.0.5 255.255.255.252
no fair-queue
!
interface serial1
ip address 10.16.1.5 255.255.255.252
ip rip authentication mode 0
!
router ospf 100
network 10.16.0.0 0.0.0.255 area 0
network 10.16.1.0 0.0.0.255 area 1
area 1 virtual-link 10.16.1.6 ...
message-digest-key 10 md5 router_c
!
no ip classless
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
login
!
end
router_a#sh ip ospf vir
router_a#sh ip ospf virtual-links
virtual link ospf_vl0 to router 10.16.1.6 is up
run as demand circuit
donotage lsa allowed.
transit area 1, via interface serial1, ...
cost of using 64
transmit delay is 1 sec, state point_to_point,
timer intervals configured, hello 10, dead 40, ...
wait 40, retransmit 5
hello due in 00:00:02
adjacency state full (hello suppressed)
router_a#sh ip ospf vir
router_a#sh ip ospf virtual-links
virtual link ospf_vl0 to router 10.16.1.6 is down
run as demand circuit
donotage lsa allowed.
transit area 1, cost of using 65535
transmit delay is 1 sec, state down,
timer intervals configured, hello 10, dead 40, ...
wait 40, retransmit 5
router_c