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D-Link DES-3326S User Manual

Page 161

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DES-3326S Layer 3 Fast Ethernet Switch User’s Guide

Switch Management and Operating Concepts

161

attached to the network, including the Designated Router itself.
The advertisement’s Link State ID field lists the IP interface
address of the Designated Router.

The distance form the network to all attached routers is zero,
for all TOS. This is why the TOS and metric fields need not be
specified in the network links advertisement.

The format of the Network Links Advertisement is shown below:

Link-State Age

Optio

Link-State ID

Advertising Router

Link-State Sequence Num

Link-State Checksum

Network Link Advertisement

Network Mask

Attached Router

ns

ber

Length

s

2

Figure 5-30. Network Link Advertisement

Field Description

Network Mask

The IP address mask for
the network.

Attached Router

The Router Ids of each of
the routers attached to
the network. Only those
routers that are fully