Dell Force10 MXL Blade, Reference Manual

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Open Shortest Path First (OSPFv2) | 413
Example Figure 21-9.
show ip ospf database external Command Example
Table 21-5. show ip ospf process-id database external Command Description
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.
FTOS#show ip ospf 1 database external
OSPF Router with ID (20.20.20.5) (Process ID 1)
Type-5 AS External
LS age: 612
Options: (No TOS-capability, No DC, E)
LS type: Type-5 AS External
Link State ID: 12.12.12.2
Advertising Router: 20.31.3.1
LS Seq Number: 0x80000007
Checksum: 0x4cde
Length: 36
Network Mask: /32
Metrics Type: 2
TOS: 0
Metrics: 25
Forward Address: 0.0.0.0
External Route Tag: 43
LS age: 1868
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#