User Manual

Unified IP MIB Reference 525
53-1003106-01
OSPF link-state database
50
OSPF link-state database
The OSPF link-state database contains the link-state advertisement from all the areas to which the
device is attached.
Reference: RFC 1583 “OSPF Version 2”, section 12 Link State Advertisements.
Name, OID, and syntax Access Description
snOspfLsdbTable
brcdIp.1.2.4.9.1
None The OSPF process’s link-state database.
snOspfLsdbEntryIndex
brcdIp.1.2.4.9.1.1.1
Syntax: Integer32
Read-only The ID of the entry in the link-state database.
snOspfLsdbAreaId
brcdIp.1.2.4.9.1.1.2
Syntax: AreaID
Read-only Shows the area from which the LSA was received. The value is in a
32-bit format.
snOspfLsdbType
brcdIp.1.2.4.9.1.1.3
Syntax: Integer
Read-only Specifies the type of the link-state advertisement. Each link-state type
has a separate advertisement format:
• routerLink(1)
• networkLink(2)
• summaryLink(3)
• asSummaryLink(4)
snOspfLsdbLsId
brcdIp.1.2.4.9.1.1.4
Syntax: IpAddress
Read-only Specifies the link-state ID. This ID is an LS type-specific field
containing either a router ID or an IP address. It identifies the piece of
the routing domain that is being described by the advertisement.
snOspfLsdbRouterId
brcdIp.1.2.4.9.1.1.5
Syntax: RouterID
Read-only Identifies the originating router in the autonomous system. This
information is in a 32-bit number. The format is determined by the
“snOspfLsdbAreaIdFormat” object.
NOTE: OSPF sequence number is a 32-bit signed integer. It starts with
the value ’80000001’h or -’7FFFFFFF’h, and increments until
’7FFFFFFF’h. Thus, a typical sequence number will be more
negative than a negative number.
snOspfLsdbSequence
brcdIp.1.2.4.9.1.1.6
Syntax: Integer32
Read-only Shows the sequence number of this entry. The OSPF neighbor that
sent the LSA stamps the LSA with a sequence number to enable the
Layer 3 Switch and other OSPF routers to determine which LSA for a
given route is the most recent. This object can be used to detect old
and duplicate link-state advertisements. The higher the sequence
number, the more recent the advertisement.
snOspfLsdbAge
brcdIp.1.2.4.9.1.1.7
Syntax: Integer32
Read-only Shows the age of the link-state advertisement in seconds.
snOspfLsdbChecksum
brcdIp.1.2.4.9.1.1.8
Syntax: Integer32
Read-only Indicates the checksum for the LSA packet. The checksum is based on
all the fields in the packet except the age field. The Layer 3 Switch
uses the checksum to verify that the packet is not corrupted.