Users Guide

Open Shortest Path First (OSPFv2 and OSPFv3)
The Switch supports open shortest path rst version 2 (OSPFv2) for IPv4 and version 3 (OSPFv3) for IPv6. Up to 16 OSPF instances can
be run simultaneously on the Switch.
OSPF is an Interior Gateway Protocol (IGP), which means that it distributes routing information between routers in a single Autonomous
System (AS). OSPF is also a link-state protocol in which all routers contain forwarding tables derived from information about their links to
their neighbors.
The fundamental mechanisms of OSPF (ooding, DR election, area support, SPF calculations, and so on) are the same for OSPFv2 and
OSPFv3. OSPFv3 runs on a per-link basis instead of on a per-IP-subnet basis.
This chapter is divided into two sections. There is no overlap between the two sets of commands. You cannot use an OSPFv2 command in
the IPv6 OSPFv3 mode.
• OSPFv2 Commands
• OSPFv3 Commands
Topics:
• OSPFv2 Commands
• area default-cost
• area nssa
• area range
• area stub
• auto-cost
• clear ip ospf
• clear ip ospf statistics
• debug ip ospf
• default-information originate
• default-metric
• description
• distance
• distance ospf
• distribute-list in
• distribute-list out
• fast-convergence
• ood-2328
• graceful-restart grace-period
• graceful-restart helper-reject
• graceful-restart mode
• graceful-restart role
• ip ospf auth-change-wait-time
• ip ospf authentication-key
• ip ospf cost
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