Korenix Technology Co., Ltd.
Industrial
Layer 3 Managed Ethernet Switch
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Industrial Layer 3 Managed Ethernet SwitchUser Manual
Page: 1408/1568
11.6.3.10
Viewing OSPF Link State Database
Non-Configurable Data
Router ID
- The 32 bit integer in dotted decimal format that uniquely identifies the router within the
autonomous system (AS). The Router ID is set on the IP Configuration page. If you want to change
the Router ID you must first disable OSPF. After you set the new Router ID, you must re-enable
OSPF to have the change take effect. The default value is 0.0.0.0, although this is not a valid
Router ID.
Area ID
- The ID of an OSPF area to which one of the router interfaces is connected. An Area ID is a
32 bit integer in dotted decimal format that uniquely identifies the area to which an interface
is connected.
LSA Type
- The format and function of the link state advertisement. One of the following:
Router Links
Network Links
Network Summary
ASBR Summary
AS-external
LS ID
- The Link State ID identifies the piece of the routing domain that is being described by
the advertisement. The value of the LS ID depends on the advertisement's LS type.
Age
- The time since the link state advertisement was first originated, in seconds.
Sequence
- The sequence number field is a signed 32-bit integer. It is used to detect old
and duplicate link state advertisements. The larger the sequence number, the more recent
the advertisement.
Checksum
- The checksum is used to detect data corruption of an advertisement. This corruption
can occur while an advertisement is being flooded, or while it is being held in a router's memory.
This field is the checksum of the complete contents of the advertisement, except the LS age field.
Options
- The Options field in the link state advertisement header indicates which
optional capabilities are associated with the advertisement. The options are:
Q
- This enables support for QoS Traffic Engineering.
E
- This describes the way AS-external-LSAs are flooded.
MC
- This describes the way IP multicast datagrams are forwarded according to the
standard specifications.
O
- This describes whether Opaque-LSAs are supported.
External LSDB Table
LSA Type
- The format and function of the link state advertisement. One of the following:
Router Links