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DES-3326S Layer 3 Fast Ethernet Switch User’s Guide
Switch Management and Operating Concepts 153
Link-State Advertisement
Link-State Age
Optio
Link-State ID
Advertising Router
Link-State Sequence Numb
Link-State Checksum
Header
ns Link-State Type
er
Length
Figure 5-28. Link-State Advertisement Header
Field Description
Link State Age The time is seconds since
the link state
advertisement was
originated.
Options The optional capabilities
supported by the
described portion of the
routing domain.
Link State Type The type of the link state
advertisement. Each link
state type has a separate
advertisement format.
The link state type are as
follows:
Type Description
1 Router Links
2 Network Links