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Designated Intermediate System (DIS) is
elected and will conduct the flooding over the media. The DIS is analogous to
the designated router in Open Shortest Path First (OSPF) Protocol, even though
the details including election process and adjacencies within a multi-access
media differ significantly. The DIS is elected by priority. The highest
priority becomes the DIS. This is configurable on an interface basis. In the
case of a tie, the router with the highest SNPA (MAC) address will become the
DIS.
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