Brocade BigIron RX Series Configuration Guide - Manual (Page 1379)

BigIron RX Series Configuration Guide 1301
53-1002484-04
Chapter
49
Configuring OSPF Version 3
In this chapter
• OSPF version 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1301
• Link state advertisement types for OSPFv3 . . . . . . . . . . . . . . . . . . . . . . 1302
• Configuring OSPFv3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1302
• Displaying OSPFv3 information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1320
OSPF version 3
Open Shortest Path First (OSPF) is a link-state routing protocol. OSPF uses link-state
advertisements (LSAs) to update neighboring routers about its interfaces and information on those
interfaces. The switch floods LSAs to all neighboring routers to update them about the interfaces.
Each router maintains an identical database that describes its area topology to help a router
determine the shortest path between it and any neighboring router.
This chapter describes the following:
• The differences between OSPF versions 2 and 3
• The link state advertisement types for OSPF version 3
• How to configure OSPF version 3
• How to display OSPF version 3 information and statistics
IPv6 supports OSPF version 3 (OSPFv3), which functions similarly to OSPF version 2, the current
version that IPv4 supports, except for the following enhancements:
• Support for IPv6 addresses and prefixes.
• In general, you can configure several IPv6 addresses on a router interface. OSPFv3 imports all
or none of the address prefixes configured on a router interface. You cannot select which
addresses to import.
• You can run one instance of OSPF version 2 and one instance of OSPFv3 concurrently on a
link.
• IPv6 link state advertisements (LSAs).
In addition, Brocade implements some new commands that are specific to OSPFv3. This section
describes the commands that are specific to OSPFv3.
NOTE
Although OSPF versions 2 and 3 function similarly to each other, Brocade has implemented the user
interface for each version independently of each other. Therefore, any configuration of OSPF version
2 features will not affect the configuration of OSPFv3 features and vice versa.