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With high bandwidth links, OSPF sends hello packets every ________?
five seconds
15 seconds
ten seconds
three seconds
With high bandwidth links (PPP, HDLC, Frame Relay, FDDI, Token Ring, ISDN PRI, and Ethernet), OSPF hello packets are sent every five seconds while on slower links (T1 or lower, ISDN BRI, and ATM virtual links), hello packets are sent every 60 seconds.
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