IPR Details
Cisco's Patent Claim on VRRP and HSRP

The text of the original IPR disclosure is available in the disclosure history.

Submitted: March 20, 1998

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.

'I'. Patent Holder/Applicant ("Patent Holder")

Holder legal name

'II'. Patent Holder's Contact for License Application

Holder contact name
Martin McNealis
Holder contact email
Holder contact info

IP Product Line Manager

'III'. IETF Document or Other Contribution to Which this IPR Disclosure Relates

draft-ietf-vrrp-spec ("Virtual Router Redundancy Protocol")
draft-li-hsrp ("Cisco Hot Standby Router Protocol (HSRP)")

'IV'. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by Section 6 of RFC 3979

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)


B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending

'V'. 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):

See Text Below for Licensing Declaration
Licensing information, comments, notes, or URL for further information

Cisco believes that implementation of draft-ietf-vrrp-spec-05.txt will
require a license to Cisco's patent #5,473,599. If this protocol is
approved as an IETF standard, licenses will be available to any party on
reasonable, nondiscriminatory terms for implentation of the protocol.

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.

'VI'. Contact Information of Submitter of this Form

Submitter name
Submitter email

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