Title: Cisco System's Statement of IPR relating to draft-ietf-bfd-base-11 Date: February 5, 2010 Submitter: Rachel Albright Cisco Systems, Inc. is an owner of U.S. Patent No. 7,561,527 ("the '527 patent") relating to the subject matter of "Bidirectional Forwarding Detection" . To the extent technology in this document is included in a standard adopted by the IETF, Cisco hereby grants a royalty-free, non-exclusive, perpetual, sub-licensable, worldwide license to any party to make, use, sell, offer for sale, and import a product that implements and is fully compliant with the standard under Cisco's rights to any claim of the '527 patent that is necessarily infringed by such a product. For information contact: Dan Lang Director, Intellectual Property Cisco Systems, Inc. +1 408-526-6672 standards-ipr@cisco.com