A.Packet mode B.Frame mode C.Transparent mode D.Channel mode E.Tunnel mode
A.It removes the top label in the MPLS label stack. B.It adds a top label in MPLS label stack. C.It replaces the top label in the MPLS label stack with another value. D.It replaces the top label in the MPLS label stack with a set of labels. E.None of above.
A.Wait-to-Restore,F(xiàn)orced Switch,Manual Switch,Lockout of Protection B.Manual Switch,Wait-to-Restore,Lockout of Protection,F(xiàn)orced Switch C.Lockout of Protection,F(xiàn)orced Switch, Manual Switch,Wait-to-Restore D.Lockout of Protection,Manual Switch, Forced Switch,Wait-to-Restore E.Wait-to-Restore,Manual Switch,F(xiàn)orced Switch,Lockout of Protection F.Wait-to-Restore,Manual Switch,Lockout of Protection,F(xiàn)orced Switch