ZyXEL MI-7248 User Guide - Page 190
DVMRP Terminology
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Chapter 33 DVMRP Figure 83 How DVMRP Works 33.2.1 DVMRP Terminology DVMRP probes are used to discover other DVMRP Neighbors on a network. DVMRP reports are used to exchange DVMRP source routing information. These packets are used to build the DVMRP multicast routing table that is used to build source trees and also perform Reverse Path Forwarding (RPF) checks on incoming multicast packets. RPF checks prevent duplicate packets being filtered when loops exist in the network topology. DVMRP prunes trim the multicast delivery tree(s). DVMRP grafts attach a branch back onto the multicast delivery tree. 33.3 DVMRP Use this screen to configure DVMRP on the switch when you wish it to act as a multicast router ("mrouter"). To open this screen, click IP Application > DVMRP. Figure 84 DVMRP 190 MS-7206 User's Guide