Reference Guide

1116 | Open Shortest Path First (OSPFv2)
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Options: (No TOS-capability, DC)
LS type: Type-5 AS External
Link State ID: 24.216.12.0
Advertising Router: 20.20.20.8
LS Seq Number: 0x80000005
Checksum: 0xa00e
Length: 36
Network Mask: /24
Metrics Type: 2
TOS: 0
Metrics: 1
Forward Address: 0.0.0.0
External Route Tag: 701
FTOS#
Related
Commands
Table 37-5. Command Example Descriptions: show ip ospf process-id database
external
Item Description
LS Age Displays the LSA age.
Options Displays the optional capabilities available on router. The following
options can be found in this item:
• TOS-capability or No TOS-capability is displayed depending on
whether the router can support Type of Service.
• DC or No DC is displayed depending on whether the originating
router can support OSPF over demand circuits.
• E or No E is displayed on whether the originating router can accept
AS External LSAs.
LS Type Displays the LSA’s type.
Link State ID Displays the Link State ID.
Advertising Router Identifies the router ID of the LSA’s originating router.
LS Seq Number Identifies the link state sequence number. This number enables you to
identify old or duplicate LSAs.
Checksum Displays the Fletcher checksum of an LSA’s complete contents.
Length Displays the length in bytes of the LSA.
Network Mask Displays the network mask implemented on the area.
Metrics Type Displays the external type.
TOS Displays the TOS options. Option 0 is the only option.
Metrics Displays the LSA metric.
Forward Address Identifies the address of the forwarding router. Data traffic is forwarded
to this router. If the forwarding address is 0.0.0.0, data traffic is
forwarded to the originating router.
External Route Tag Displays the 32-bit field attached to each external route. This field is not
used by the OSPF protocol, but can be used for external route
management.
show ip ospf database Displays OSPF database information.