D-Link DGS-3324SR Product Manual - Page 191
Network Links Advertisements
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xStack DGS/DXS-3300 Series Layer 3 Stackable Gigabit Ethernet Switch User Manual Network Links Advertisements Network links advertisements are Type 2 link state advertisements. A network links advertisement is originated for each transit network in the area. A transit network is a multi-access network that has more than one attached router. The network links advertisement is originated by the network's Designated router. The advertisement describes all routers 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 from 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: Network Link Advertisements Field Network Mask Attached Router Link-State Age Options 2 Link-State ID Advertising Router Link-State Sequence Number Link-State Checksum Length Network Mask Attached Router Figure 6- 137. Network Link Advertisements Description The IP address mask for the network. The Router IDs of each of the routers attached to the network. Only those routers that are fully adjacent to the Designated Router (DR) are listed. The DR includes itself in this list. 176