VRRP – What is this?

<script type="text/javascript">if(!gform){document.addEventListener("gform_main_scripts_loaded",function(){gform.scriptsLoaded=!0}),window.addEventListener("DOMContentLoaded",function(){gform.domLoaded=!0});var gform={domLoaded:!1,scriptsLoaded:!1,initializeOnLoaded:function(o){gform.domLoaded&&gform.scriptsLoaded?o():!gform.domLoaded&&gform.scriptsLoaded?window.addEventListener("DOMContentLoaded",o):document.addEventListener("gform_main_scripts_loaded",o)},hooks:{action:{},filter:{}},addAction:function(o,n,r,t){gform.addHook("action",o,n,r,t)},addFilter:function(o,n,r,t){gform.addHook("filter",o,n,r,t)},doAction:function(o){gform.doHook("action",o,arguments)},applyFilters:function(o){return gform.doHook("filter",o,arguments)},removeAction:function(o,n){gform.removeHook("action",o,n)},removeFilter:function(o,n,r){gform.removeHook("filter",o,n,r)},addHook:function(o,n,r,t,i){null==gform.hooks[o][n]&&(gform.hooks[o][n]=[]);var e=gform.hooks[o][n];null==i&&(i=n+"_"+e.length),null==t&&(t=10),gform.hooks[o][n].push({tag:i,callable:r,priority:t})},doHook:function(o,n,r){if(r=Array.prototype.slice.call(r,1),null!=gform.hooks[o][n]){var t,i=gform.hooks[o][n];i.sort(function(o,n){return o.priority-n.priority});for(var e=0;e<i.length;e++)"function"!=typeof(t=i[e].callable)&&(t=window[t]),"action"==o?t.apply(null,r):r[0]=t.apply(null,r)}if("filter"==o)return r[0]},removeHook:function(o,n,r,t){if(null!=gform.hooks[o][n])for(var i=gform.hooks[o][n],e=i.length-1;0<=e;e--)null!=t&&t!=i[e].tag||null!=r&&r!=i[e].priority||i.splice(e,1)}}}</script> <div class='gf_browser_unknown gform_wrapper gform_legacy_markup_wrapper' id='gform_wrapper_1' ><form method='post' enctype='multipart/form-data' id='gform_1' action='/what-is-vrrp/' novalidate> <div class='gform_body gform-body'><ul id='gform_fields_1' class='gform_fields top_label form_sublabel_below description_below'><li id="field_1_1" class="gfield gfield_contains_required field_sublabel_below field_description_below gfield_visibility_visible" ><label class='gfield_label gfield_label_before_complex' >Naam<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_complex ginput_container no_prefix has_first_name no_middle_name no_last_name no_suffix gf_name_has_1 ginput_container_name' id='input_1_1'> <span id='input_1_1_3_container' class='name_first' > <input type='text' name='input_1.3' id='input_1_1_3' value='' aria-label='First name' aria-required='true' placeholder='Naam' /> <label for='input_1_1_3' >First</label> </span> </div></li><li id="field_1_2" class="gfield gfield_contains_required field_sublabel_below field_description_below gfield_visibility_visible" ><label class='gfield_label' for='input_1_2' >E-mailadres<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_email'> <input name='input_2' id='input_1_2' type='email' value='' class='medium' placeholder='E-mailadres' aria-required="true" aria-invalid="false" /> </div></li><li id="field_1_3" class="gfield gform_validation_container field_sublabel_below field_description_below gfield_visibility_visible" ><label class='gfield_label' for='input_1_3' >Name</label><div class='ginput_container'><input name='input_3' id='input_1_3' type='text' value='' autocomplete='new-password'/></div><div class='gfield_description' id='gfield_description_1_3'>This field is for validation purposes and should be left unchanged.</div></li></ul></div> <div class='gform_footer top_label'> <input type='submit' id='gform_submit_button_1' class='gform_button button' value='Download' onclick='if(window["gf_submitting_1"]){return false;} if( !jQuery("#gform_1")[0].checkValidity || jQuery("#gform_1")[0].checkValidity()){window["gf_submitting_1"]=true;} ' onkeypress='if( event.keyCode == 13 ){ if(window["gf_submitting_1"]){return false;} if( !jQuery("#gform_1")[0].checkValidity || jQuery("#gform_1")[0].checkValidity()){window["gf_submitting_1"]=true;} jQuery("#gform_1").trigger("submit",[true]); }' /> <input type='hidden' class='gform_hidden' name='is_submit_1' value='1' /> <input type='hidden' class='gform_hidden' name='gform_submit' value='1' /> <input type='hidden' class='gform_hidden' name='gform_unique_id' value='' /> <input type='hidden' class='gform_hidden' name='state_1' value='WyJbXSIsIjMwZmM5MDE0NzZkM2E1ODM5M2I0NWRkNmI2MzVhODY5Il0=' /> <input type='hidden' class='gform_hidden' name='gform_target_page_number_1' id='gform_target_page_number_1' value='0' /> <input type='hidden' class='gform_hidden' name='gform_source_page_number_1' id='gform_source_page_number_1' value='1' /> <input type='hidden' name='gform_field_values' value='' /> </div> </form> </div>