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Lectures notes for 2010 - KTH

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Link state request packet<br />

0 7 8 15 16 23 24 31<br />

Version Type = 3 Message length<br />

Source Router IP Address<br />

Area Identification<br />

Checksum<br />

Authentication type<br />

Authentication (64 bits)<br />

Link state type<br />

Link state ID<br />

Advertising router<br />

Figure 10: OSPF Link state request packet (see Forouzan figure 14.46 pg. 420)<br />

To ask <strong>for</strong> in<strong>for</strong>mation about a specific route (or routes); reply is an update packet.<br />

repeat<br />

Maguire Link state request packet 7: 35 of 70<br />

maguire@kth.se <strong>2010</strong>.03.21 Internetworking/Internetteknik

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