{"draft":"","doc_id":"RFC2117","title":" Protocol Independent Multicast-Sparse Mode (PIM-SM): Protocol Specification ","authors":["D. Estrin","D. Farinacci","A. Helmy","D. Thaler","S. Deering","M. Handley","V. Jacobson","C. Liu","P. Sharma","L. Wei"],"format":["ASCII","HTML"],"page_count":"66","pub_status":"EXPERIMENTAL","status":"EXPERIMENTAL","source":"Inter-Domain Multicast Routing","abstract":" This document describes a protocol for efficiently routing to multicast groups that may span wide-area (and inter-domain) internets.  This memo defines an Experimental Protocol for the Internet community.  ","pub_date":"May 1997","keywords":["  "],"obsoletes":[],"obsoleted_by":[" RFC2362"],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC2117","errata_url":null}