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OSPF LSA 8 & LSA 9

ryel.dsouza
Level 1
Level 1

hello i would like to know how Lsa 8 & Lsa 9 in ospf is used with ipv6. I'm a bit confussed.

Also what significance do they ????

1 Reply 1

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello Ryel,

OSPF version 3, which is described in RFC 2740, supports IPv6

OSPFv3 use Link Local ipv6 addresses to build adjacencies.

Link LSAs (Type 8)-Have local-link flooding scope and are never flooded beyond the link with which they are associated. Link LSAs provide the link-local address of the router to all other routers attached to the link, inform other routers attached to the link of a list of IPv6 prefixes to associate with the link, and allow the router to assert a collection of Options bits to associate with the network LSA that will be originated for the link.

•Intra-Area-Prefix LSAs (Type 9)-A router can originate multiple intra-area-prefix LSAs for each router or transit network, each with a unique link-state ID. The link-state ID for each intra-area-prefix LSA describes its association to either the router LSA or the network LSA and contains prefixes for stub and transit networks.

see

http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-ospf.html#wp1069815

Hope to help

Giuseppe

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