PIM survey for operators

The IETF pim working group is conducting a survey in order to advance
the PIM Sparse Mode spec on the IETF Standards Track, and would like
input from operators. The survey ends July 20th. Please see below for
more information.

thank you,
pim chairs Mike & Stig

Introduction:

PIM-SM was first published as RFC 2117 in 1997 and then again as
RFC 2362 in 1998.  The protocol was classified as Experimental in
both of these documents.  The PIM-SM protocol specification was
then rewritten in whole and advanced to Proposed Standard as
RFC 4601 in 2006. Considering the multiple independent
implementations developed and the successful operational
experience gained, the IETF has decided to advance the PIM-SM
routing protocol to Draft Standard.  This survey intends to
provide supporting documentation to advance the Protocol
Independent Multicast - Sparse Mode (PIM-SM) routing protocol
from IETF Proposed Standard to Draft Standard. (Due to RFC 6410,
now the intention is to progress it to Internet Standard.  Draft Standard
is no longer used.)

This survey is issued on behalf of the IETF PIM Working Group.

The responses will be collected by a neutral third-party and kept
strictly confidential; only the final combined results will be
published.  Marshall Eubanks has agreed to anonymize the response
to this Questionnaire.  Marshall has a long experience with