OSPF: Difference between revisions
→What is a Demand Circuit
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show ip ospf virtual-link
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Source: [https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/5132-dc.html cisco.com]
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*Unlike the OSPF demand circuit feature, flooding reduction is usually configured on leased lines.
*Flooding reduction uses same technique as demand circuits to suppress the periodic LSA refresh.
*This feature is submitted for
*The main difference between flooding reduction and demand circuits is that former suppresses only periodic LSA refreshes; it does not suppress periodic hello packets.
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