Table of Contents
Advertisement
-
If no Loopback interface address is configured, the system will choose the interface with the biggest IP
address as the Router ID.
Five types of packets of OSPF:
-
Hello packet
-
DD packet (Database Description Packet)
LSR packet (Link-State Request Packet)
-
LSU packet (Link-State Update Packet)
-
LSAck packet (Link-Sate Acknowledgment Packet)
-
-
Neighbor and Neighboring
After OSPF router starts up, it will send out Hello Packets through the OSPF interface. Upon receipt of
Hello packet, OSPF router will check the parameters defined in the packet. If it's consistent, a neighbor
relationship will be formed. Not all matched sides in neighbor relationship can form the adjacency
relationship. It is determined by the network type. Only when both sides successfully exchange DD
packets and LSDB synchronization is achieved, the adjacency in the true sense can be formed. LSA
describes the network topology around a router, LSDB describes entire network topology.
OSPF
Item
Enable
Router ID
ABR Type
RFC1583 Compatibility
OSPF Opaque-LSA
Figure 4-2-7-4
Description
Enable or disable OSPF.
Router ID (IP address) of the originating LSA.
Select from cisco, ibm, standard and shortcut.
Enable/Disable.
Enable/Disable
UR51 User Guide
53
Advertisement
Table of Contents
