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hello vs LSA

vishalpatil86
Level 1
Level 1

hi,

whats the difference between hellos and lsa in ospf?

5 Replies 5

burleyman
Level 8
Level 8

A hello packet is used to discover neighbors and build adjancencies and make sure the link to the neighbor is still up.

An LSA's are sending what the state of the links are for the router sending them.

Mike

i wud like know the contents of lsa and hello packet.

what info they carry?

Not easier to google this?

Just asking!

Vishal,

Check this link it should help.

http://docwiki.cisco.com/wiki/Open_Shortest_Path_First

Mike

This is the main document about OSPFv2: http://tools.ietf.org/html/rfc2328

Here you can find all OSPF packets' formats. All the fields and their description.