D-Link xStack DXS-3350SR Installation & User Manual - page 157
DXS-3350SR Gigabit Layer 3 Switch
Field Description
Version No.
The OSPF version number
Type
The OSPF packet type. The OSPF packet types are as follows:
Type Description
Hello
Database Description
Link-State Request
Link-State Update
Link-State Acknowledgment
Packet Length
The length of the packet in bytes. This length includes the 24 byte
header.
Router ID
The Router ID of the packet’s source.
Area ID
A 32-bit number identifying the area that this packet belongs to. All
OSPF packets are associated with a single area. Packets traversing a
virtual link are assigned the backbone Area ID of 0.0.0.0
Checksum
A standard IP checksum that includes all of the packet’s contents
except for the 64-bit authentication field.
Authentication Type
The type of authentication to be used for the packet.
Authentication
A 64-bit field used by the authentication scheme.
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