<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="margin: 0px; font-stretch: normal; line-height: normal; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">Hi Marcin,</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">It will work with several ports of the same card and on other cards.</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; background-color: rgb(255, 255, 255);" class=""><br class=""></div><div>About load balancing:</div><div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">service load-balance ip layer-4</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">service load-balance link-group bridging layer-4</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">is the way to go.</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">It will probably try to keep the traffic on ports of the same card if possible, I guess (not a pure hash function).</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div></span></div></div><div>About BFD on LAG:</div><div>1) possible, but it will really use only one link by default with standard classic BFD (won't protect the LAG components individually, but only the virtual link) ; that is, one single standard BFD session is used.</div><div>2) it can protect the LAG components by using " link-group multiple-session" in the bfd interface config, but it's proprietary to SE (not standard, not compatible with Micro BFD sessions of RFC 7130)</div><div><br class=""></div><div><br class=""></div><div><br class=""></div><div>In link-group dot1q mode, each vlan is configured with pvc dot1q command under the link-group, there are no "one separate link-group per vlan" (even if "show link-group" isn't very clear).</div><div>Technically there's one circuit inside the SE per physical link per vlan (in show circuit).</div><div><br class=""></div><div><br class=""><blockquote type="cite" class=""><div class="">Le 20 oct. 2017 à 15:34, Marcin Kuczera <<a href="mailto:marcin@leon.pl" class="">marcin@leon.pl</a>> a écrit :</div><br class="Apple-interchange-newline"><div class=""><div class="">hello,<br class=""><br class="">is there anyone here that uses link group on SE600/1200, software 12.1.1.x ?<br class=""><br class="">- need to check if it should work if link group contains 2 ports from<br class="">same card<br class=""><br class="">- need to check if it should work if link group contains 2 ports from<br class="">different cards<br class=""><br class="">- above need to do like round-robin or some hashing to distribute<br class="">outbound traffic quite equally<br class=""><br class="">- if BFD is possible in such cases ?<br class=""><br class=""><br class="">- is it normal that in link-group dot1q mode - for every vlan separate<br class="">link-group is automatically created ?<br class=""></div></div></blockquote></div><br class=""></body></html>