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Category Archives: OSPF
Acknowledgement Without MR.Keith Barker’s 21 minutes video instruction, constructing MPLS VPN lab will take a longer time. His 21 minutes video instruction summarizes all. MR. Keith Barker has amazing skills to translate complicated concepts into simpler and easier to understand … Continue reading
I have heard of Quagga for sometime but I had never tried it until now. Quagga was installed on my old Core duo, 2GB laptop. Quagga is a suite of routing daemons, the suite contains these daemons: 1. ospfd – … Continue reading
Database Description Packet (DDP) – This contains the summary of all the LSAs, it only contains the headers and not the complete LSA. This allows router to see if its own link state database is updated. This is type 2 … Continue reading
Reference: Routing TCP/IP 2nd Edition Jeff Doyle, page 353-357. OSPF router goes through several states before adjacency is formed. DOWN – No hello packets was seen from the neighbour router since the last dead interval. If an OSPF router goes … Continue reading
Open Shortest Path First is using Djikstra’s shortest path first algorithm. It is a link-state routing protocol, another link-state routing protocol is Intermediate System to Intermediate System also known as IS-IS. General facts about OSPF 1. Uses its own transport … Continue reading
R2 hub router interface Serial1/0 no ip address encapsulation frame-relay serial restart-delay 0 interface Serial1/0.102 point-to-point ip address 10.10.10.1 255.255.255.252 frame-relay interface-dlci 102 end interface Serial1/0.103 multipoint ip address 192.168.100.1 255.255.255.248 ip ospf priority 10 frame-relay interface-dlci 103 frame-relay interface-dlci … Continue reading