I have a problem about OSPF Routing Issue.
My customer wants to establish more Circuit bandwith(my cunstomer use SPA-2XT3/E3[45M]),So i recommand Sonet(155M)
consequently, we tested 155M interface on cisco 7609/7604
there are using OSPF routing protocol.
when i declared new interface(155M) on ospf network, that was not problem(that was normal state)
after test, i was removed new Interface(155M) ,at that time i was just configuration using copy&paste aboue "no network X.X.X.X 0.0.0.0 area 0" in ther Router C
At that time Router C was not operate just 30sec ~ 1min, looks like hang.
all ospf network using area 0.
could you please help me??
i waiting your best answer
PS.i attach a file network diagram.