D-Link DES-3326SR User Manual page 137

DES-3326SR Layer 3 Fast Ethernet Switch User's Guide
Link-State Request Packet
Version No.
Checksum
Figure 5-25. Link-State Request Packet
Each advertisement requested is specified by its Link-State
Type, Link-State ID, and Advertising Router.
identifies the advertisement, but not its instance. Link-State
Request packets are understood to be requests for the most
recent instance.
The Link-State Update Packet
Link-State Update packets are OSPF packet type 4.
packets implement the flooding of link-state advertisements.
Each Link-State Update packet carries a collection of link-state
advertisements one hop further from its origin. Several link-
state advertisements may be included in a single packet.
3
Packet Length
Router ID
Area ID
Authentication Type
Authentication
Authentication
Link-State Type
Link-State ID
Advertising Router
125
This uniquely
These