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I. Patent Holder/Applicant ("Patent Holder") Legal Name:  * Fujitsu Limited 

D!
II. Patent Holder's Contact for License Application Name:  * Shigeru KITANO 
Title:   General Manager Department:   Standards Center, Intellectual Property Unit 
Address1:   1-1, Kamiodanaka 4-chome, Nakahara-ku, Kawasaki-shi Address2:   Kanagawa, JAPAN 211-8588 
Telephone:  * +81-44-754-3050 Fax:   
Email:  * standards@lip.fujitsu.com 
!III. Contact Information for the IETF Participant Whose Personal Belief Triggered this 

Disclosure: Name:  * Don O'Connor 
Title:  Distinguished Planner Department:  Fujitsu Network Communications 
Address1:  2801 Telecom Parkway Address2:  Richardson, Tx 75082 
Telephone:  * 1 + 972 + 479-3672 Fax:   
Email:  * don.oconnor@us.fujitsu.com 
!* IV. IETF Document or Other Contribution to Which this IPR Disclosure Relates:  

RFC Numbers:  RFC! 4541 I-D Filenames (draft...):  IGMP and MLD Snooping Switches Considerations Designations for Other 
Contributions:   
!V. Disclosure of Patent Information (i.e., patents or patent applications required to be 

disclosed by Section 6 of RFC3979)  

A. For granted patents or published pending patent applications, please provide the following information: 
Patent, Serial, Publication, 
Registration, or Application/File 
number(s):  

* US 6,457,059 

Date(s) granted or applied for:   * Sep. 24, 2002 (granted) 
Country:   * US Additional Notes:    

B. Does your disclosure relate to an unpublished pending patent application?:  

YES           NO  C. If an Internet-Draft or RFC includes multiple parts and it is not reasonably apparent which part 
of such Internet-Draft or RFC is alleged to be covered by the patent information disclosed in Section V(A) or V(B), it is helpful if the discloser identifies here the sections of the Internet-Draft 
or RFC that are alleged to be so covered:     

VII. Contact Information of Submitter of this Form (if different from the Contact Information above)  
Same as in Section II above:   
Same as in Section III above: Q Name:  *   

Title:  !   Department:   
Address1:   !  Address2:   
Telephone:  *  Fax:     
Email:  *  

VI. Licensing Declaration  The Patent Holder states that its position with respect to licensing any patent claims contained in 
the patent(s) or patent application(s) disclosed above that would necessarily be infringed by implementation of the technology required by the relevant IETF specification ("Necessary Patent 
Claims"), for the purpose of implementing such specification, is as follows(select one licensing declaration option only):  

a) No License Required for Implementers.  
b) Royalty-Free, Reasonable and Non-Discriminatory License to All Implementers.  

c) Reasonable and Non-Discriminatory License to All Implementers with Possible Royalty/Fee.  
d) Licensing Declaration to be Provided Later (implies a willingness to commit to the provisions of a), b), or c) above to all implementers; otherwise, 
the next option "Unwilling to Commit to the Provisions of a), b), or c) Above". - must be selected).  

e) Unwilling to Commit to the Provisions of a), b), or c) Above.  
f) See Text Below for Licensing Declaration.   
Q! Above licensing declaration is limited solely to standards-track IETF documents.  Licensing information, comments, notes, or URL for further information:  

  Fair, reasonable and non-discriminatory license to all implementers subject to reciprocity  
Q! The individual submitting this template represents and warrants that all terms and conditions that must be satisfied for implementers of any covered IETF specification to obtain a 
license have been disclosed in this IPR disclosure statement.  Note: The individual submitting this template represents and warrants that he or she is 
authorized by the Patent Holder to agree to the above-selected licensing declaration.  

!
VIII. Other Notes:     

 

!
!
!

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