Operation Manual – MulticastH3C S5500-EI Series Ethernet Switches Chapter 7 PIM Configuration7-317.4.3 Enabling PIM-SMThe SSM model is implemented based on some subsets of PIM-SM. Therefore, arouter is PIM-SSM capable after you enable PIM-SM on it.When deploying a PIM-SM domain, you are recommended to enable PIM-SM on allinterfaces of non-border routers (border routers are PIM-enabled routers located on theboundary of BSR admin-scope regions).Follow these steps to enable PIM-SM:To do... Use the command... RemarksEnter system view system-view —Enable IP multicastroutingmulticastrouting-enableRequiredDisable by defaultEnter interface view interface interface-typeinterface-number —Enable PIM-SM pim sm RequiredDisabled by defaultCaution:All the interfaces of the same router must work in the same PIM mode.7.4.4 Configuring the SSM Group RangeAs for whether the information from a multicast source is delivered to the receiversbased on the PIM-SSM model or the PIM-SM model, this depends on whether thegroup address in the (S, G) channel subscribed by the receivers falls in the SSM grouprange. All PIM-SM-enabled interfaces assume that multicast groups within this addressrange are using the PIM-SSM model.Follow these steps to configure an SSM multicast group range:To do... Use the command... RemarksEnter system view system-view —Enter PIM view pim —Configure the SSM grouprange ssm-policy acl-number Optional232.0.0.0/8 by default
