thanks allah ,thanks all of that site

im passed today with 1000
exam was from pass4sure 100%

one simlet question "wat is root bridge"

i used to commands
sh spanning sh cdp nei

ospf simulaton :the serial line was shutdown tack care


sh run

int s0
no shut

no ospf router 2
net 191.168.163.8 0.0.0.3 area 0
net 191.168.45.0 0.0.0.255 area 0
z^

sh ip route