When PIM-SM ASM / BIDIR-PIM group filtering is enabled (that is, when pimTmEntUseAsmGrpFilter is 'true'), then for groups in the PIM-SM ASM and BIDIR-PIM spaces, the local router will: - process received PIM (*,G) Join messages only if the group address is included in the standard access list corresponding to the list index value configured for this object. For PIM-SM ASM groups, this applies to (S,G) Join messages too - accept (*,G) and (S,G) local membership requests from the MGMD Router component only if the group address is included in the standard access list corresponding to the list index value configured for this object. In other words, the standard access list is a whitelist of the PIM-SM ASM and BIDIR-PIM groups for which DC-PIM is permitted to request traffic. Note that DC-PIM will never Register-encapsulate multicast data packets for PIM-SM ASM groups that are blocked by this filter. See pimTmEntRegSrcAndGrpFilter for additional Register message filtering options. pimTmEntAsmGrpFilter defaults to 0, which indicates that no access list is specified. When pimTmEntUseAsmGrpFilter is set to to 'true', then pimTmEntRowStatus can only become 'active' if a non-zero value has been specified for pimTmEntAsmGrpFilter. This field is only relevant for PIM-SM and BIDIR-PIM. This field is ignored if 'sparse' and 'bidir' are both clear for pimTmEntMode.