PT-7828 User’s Manual
Featured Functions
3-83
OSPF Settings
OSPF (Open Shortest Path First) is a dynamic routing protocol for use in Internet Protocol (IP)
networks. Specifically, it is a link-state routing protocol and falls into the group of interior
gateway protocols, operating within a single autonomous system. As a link-state routing protocol,
OSPF establishes and maintains neighbor relationships in order to exchange routing updates with
other routers. The neighbor relationship table is called an adjacency database in OSPF. OSPF
forms neighbor relationships only with the routers directly connected to it. In order to form a
neighbor relationship between two routers, the interfaces used to form the relationship must be in
the same area. An interface can only belong to a single area. With OSPF enabled, PT-7828 is
capable to exchange routing information with other L3 switches or routers more efficiently in a
large system. The OSPF Settings page is used to set up OSPF configurations.
OSPF Global Settings
Each L3 switch/router has an OSPF router ID, customarily written in the dotted decimal format
(e.g., 1.2.3.4) of an IP address. This ID must be established in every OSPF instance. If not
explicitly configured, the default ID (0.0.0.0) will be regarded as the router ID. Since the router ID
is an IP address, it does not have to be a part of any routable subnet in the network.
OSPF State, OSPF Router ID, Current Router ID, Redistribute
Setting
Description
Factory Default
OSPF State
Select the option to enable/disable the OSPF Function.
Disable
OSPF Router ID
Set the L3 switch’s Router ID.
0.0.0.0
Current Router ID Show the current L3 switch’s Router ID.
0.0.0.0
Redistribute
Redistribute routing information to other protocols
Connected