Version 9.4.
(0.0)
Added support for VRF.
Version 9.0.2.0 Introduced on the S6000.
Version 
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Added support for Multi-Process OSPF.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.1.1.1
Introduced on the E-Series.
Usage 
Information
The following describes the show ip ospf process-id database external 
command shown in the following example.
Field Description
LS Age Displays the LSA’s 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 the 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 Type of Service (TOS) options. Option 0 is the 
only option.
Open Shortest Path First (OSPFv2 and OSPFv3)
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