Operation Manual – Multicast ProtocolH3C S3610&S5510 Series Ethernet Switches Chapter 6 PIM Configuration6-14z Configure any unicast routing protocol so that all devices in the domain areinteroperable at the network layer.Before configuring PIM-DM, prepare the following data:z The interval between state refresh messagesz Minimum time to wait before receiving a new refresh messagez TTL value of state refresh messagesz Graft retry period6.2.3 Enabling PIM-DMWith PIM-DM enabled, a router sends hello messages periodically to discover PIMneighbors and processes messages from PIM neighbors. When deploying a PIM-DMdomain, you are recommended to enable PIM-DM on all interfaces of non-borderrouters (border routers are PIM-enabled routers located on the boundary of BSRadmin-scope regions).Follow these steps to enable PIM-DM:To do... Use the command... RemarksEnter system view system-view —Enable IP multicastroutingmulticastrouting-enableRequiredDisable by defaultEnter interface view interface interface-typeinterface-number —Enable PIM-DM pim dm RequiredDisabled by defaultCaution:All the interfaces of the same router must work in the same PIM mode.6.2.4 Enabling State RefreshAn interface without the state refresh capability cannot forward state refresh messages.Follow these steps to enable the state refresh capability:To do... Use the command... RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —
