However, R2 needs confirmation as well, so R1 sends the message M3 with R2’s ID in it. At this point R1 can declare that two-way communication verified. In general, it is called Three-way handshake, since it requires only 3 packets to verify two-way connectivity:ġ) R1 sends a message ( M1) with its ID (like Router-ID or any other address that can be deemed as ID within this communication) that neighbor should receiveĢ) R2 receives M1 from R1 and sends its own message ( M2) with its ID and with the ID from M1ģ) R1 receives M2 from R2 with its ID in it. Two-way connectivity is is checked by receiving from the neighbor information that ws sent earlier. The process of forming an adjacency is a two-step process:ġ) Neighbor discovery and verification of two-way connectivity Take a look at The difference between distance vector and link state protocols. – OSPF Link-State DataBase (Type-1 and Type-2) Why you should avoid normal/regular OSPF areas
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |