PIM Designated Router Load Balancing

The information below is for an old version of the document
Document Type Expired Internet-Draft (pim WG)
Authors Yiqun Cai  , Sri Vallepalli  , Heidi Ou  , Andy Green 
Last updated 2015-10-14 (latest revision 2014-07-03)
Replaces draft-hou-pim-drlb
Stream Internet Engineering Task Force (IETF)
Expired & archived
pdf htmlized bibtex
Additional Resources
- Mailing list discussion
Stream WG state WG Document
Revised I-D Needed - Issue raised by AD
Document shepherd Mike McBride
Shepherd write-up Show (last changed 2014-07-01)
IESG IESG state Expired (IESG: Dead)
Consensus Boilerplate Unknown
Telechat date
Responsible AD Alia Atlas
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


On a multi-access network, one of the PIM routers is elected as a Designated Router (DR). On the last hop network, the PIM DR is responsible for tracking local multicast listeners and forwarding traffic to these listeners if the group is operating in PIM-SM. In this document, we propose a modification to the PIM-SM protocol that allows more than one of these last hop routers to be selected so that the forwarding load can be distributed among these routers.


Yiqun Cai (yiqunc@microsoft.com)
Sri Vallepalli (svallepa@cisco.com)
Heidi Ou (hou@cisco.com)
Andy Green (andy.da.green@bt.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)