If you're looking for vendor neutral FHRP, VRRP has RFC documentation. GLBP and HSRP are Cisco proprietary protocols and are protected information other than the study material and how too out there.<div id="yMail_cursorElementTracker_1564947639923"><br></div><div id="yMail_cursorElementTracker_1564947640583">Cyrus<br id="yMail_cursorElementTracker_1564947459042"><br><div id="ymail_android_signature"><a id="ymail_android_signature_link" href="https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature">Sent from Yahoo Mail on Android</a></div> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Sat, Aug 3, 2019 at 10:19 AM, Chriztoffer Hansen</div><div><chriztoffer@netravnen.de> wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> <br clear="none">Saku Ytti wrote on 03/08/2019 15:49:<br clear="none">> I don't think any work for GLBP exists in IETF.<br clear="none"><br clear="none">A shot in the dark. Correct.<br clear="none"><br clear="none"><a shape="rect" href="https://www.google.com/#q=%28" target="_blank">https://www.google.com/#q=%28</a>"GLBP"%7C"Gateway+Load+Balancing"+Protocol%7C"Global+Load+Balancing"+Protocol%29+AND+inurl%3Adatatracker+AND+inurl%3Aietf<br clear="none"><br clear="none">(My IETF history is short. =I won't know any older history.)<br clear="none"><br clear="none">... I doubt any current or previous Cisco folks on the list would want <br clear="none">to chirm in about history from inside Cisco on the GLBP topic...(?)<div class="yqt7750940472 yQTDBase" id="yqtfd23347"><br clear="none"><br clear="none">-- <br clear="none">Best regards,<br clear="none">Chriztoffer<br clear="none"></div> </div> </blockquote></div>