<div dir="ltr"><div>Hi,</div><div><br></div><div>Sorry for the late reply, what do you mean non-compliant client? Switching completely off the machine only works switching off the service doesn't work.</div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Regards,<br><br>David</div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 23 Jun 2020 at 22:14, Thomas Markwalder <<a href="mailto:tmark@isc.org">tmark@isc.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">The mostfrequent cause for this is non-compliant clients that do not set <br>
the SECS field on retries.  If clients are not setting this field > 0 on <br>
retries they will not be detected as unacked.  Take a look at the packet <br>
capture and/or try setting this to 0.<br>
<br>
See: <br>
<a href="https://kea.readthedocs.io/en/latest/arm/hooks.html#load-balancing-configuration" rel="noreferrer" target="_blank">https://kea.readthedocs.io/en/latest/arm/hooks.html#load-balancing-configuration</a>. <br>
Following the sample config there is discussion of these parameters.<br>
<br>
<br>
<br>
<br>
<br>
On 6/23/20 3:50 PM, Ismael Suarez wrote:<br>
> With a similar config (basically the same), I am facing the same situation on 1.6.2. Anyone care to point out some obvios configs that we might be missing?<br>
><br>
><br>
><br>
> --<br>
><br>
> Ism<br>
><br>
><br>
> -----Original Message-----<br>
> From: Pizu <<a href="mailto:pizpower@gmail.com" target="_blank">pizpower@gmail.com</a><mailto:<a href="mailto:Pizu%2520%253cpizpower@gmail.com" target="_blank">Pizu%20%3cpizpower@gmail.com</a>%3e>><br>
> To: <a href="mailto:kea-users@lists.isc.org" target="_blank">kea-users@lists.isc.org</a><mailto:<a href="mailto:kea-users@lists.isc.org" target="_blank">kea-users@lists.isc.org</a>><br>
> Subject: [Kea-users] HA - Hot-Stanby Problem - Kea v1.6.1/2<br>
> Date: Mon, 22 Jun 2020 16:47:23 +0200<br>
><br>
> Hi,<br>
><br>
> Am testing the HA and if I switch off the primary node nothing works. can you please help?<br>
><br>
> Primary Configuration:<br>
><br>
>          "hooks-libraries": [{<br>
>                  "library": "/usr/local/lib/kea/hooks/libdhcp_lease_cmds.so",<br>
>                  "parameters": {}<br>
>              }, {<br>
>                  "library": "/usr/local/lib/kea/hooks/libdhcp_stat_cmds.so",<br>
>                  "parameters": {}<br>
>              }, {<br>
>                  "library": "/usr/local/lib/kea/hooks/libdhcp_ha.so",<br>
>                  "parameters": {<br>
>                      "high-availability": [{<br>
>                              "heartbeat-delay": 10000,<br>
>                              "max-ack-delay": 10000,<br>
>                              "max-response-delay": 45000,<br>
>                              "max-unacked-clients": 10,<br>
>                              "mode": "hot-standby",<br>
>                              "peers": [{<br>
>                                      "auto-failover": true,<br>
>                                      "name": "mstkeadhcpsrv01.corporate.intra",<br>
>                                      "role": "primary",<br>
>                                      "url": "<a href="http://172.16.193.39:8080/" rel="noreferrer" target="_blank">http://172.16.193.39:8080/</a>"<br>
>                                  }, {<br>
>                                      "auto-failover": true,<br>
>                                      "name": "ztnkeadhcpsrv01.corporate.intra",<br>
>                                      "role": "standby",<br>
>                                      "url": "<a href="http://172.16.60.39:8080/" rel="noreferrer" target="_blank">http://172.16.60.39:8080/</a>"<br>
>                                  }<br>
>                              ],<br>
>                              "send-lease-updates": true,<br>
>                              "sync-leases": true,<br>
>                              "sync-page-limit": 10000,<br>
>                              "sync-timeout": 60000,<br>
>                              "this-server-name": "mstkeadhcpsrv01.corporate.intra"<br>
>                          }<br>
>                      ]<br>
>                  }<br>
>              }<br>
>          ],<br>
><br>
> Standby Configuration:<br>
><br>
>          "hooks-libraries": [{<br>
>                  "library": "/usr/local/lib/kea/hooks/libdhcp_lease_cmds.so",<br>
>                  "parameters": {}<br>
>              }, {<br>
>                  "library": "/usr/local/lib/kea/hooks/libdhcp_stat_cmds.so",<br>
>                  "parameters": {}<br>
>              }, {<br>
>                  "library": "/usr/local/lib/kea/hooks/libdhcp_ha.so",<br>
>                  "parameters": {<br>
>                      "high-availability": [{<br>
>                              "heartbeat-delay": 10000,<br>
>                              "max-ack-delay": 10000,<br>
>                              "max-response-delay": 45000,<br>
>                              "max-unacked-clients": 10,<br>
>                              "mode": "hot-standby",<br>
>                              "peers": [{<br>
>                                      "auto-failover": true,<br>
>                                      "name": "mstkeadhcpsrv01.corporate.intra",<br>
>                                      "role": "primary",<br>
>                                      "url": "<a href="http://172.16.193.39:8080/" rel="noreferrer" target="_blank">http://172.16.193.39:8080/</a>"<br>
>                                  }, {<br>
>                                      "auto-failover": true,<br>
>                                      "name": "ztnkeadhcpsrv01.corporate.intra",<br>
>                                      "role": "standby",<br>
>                                      "url": "<a href="http://172.16.60.39:8080/" rel="noreferrer" target="_blank">http://172.16.60.39:8080/</a>"<br>
>                                  }<br>
>                              ],<br>
>                              "send-lease-updates": true,<br>
>                              "sync-leases": true,<br>
>                              "sync-page-limit": 10000,<br>
>                              "sync-timeout": 60000,<br>
>                              "this-server-name": "ztnkeadhcpsrv01.corporate.intra"<br>
>                          }<br>
>                      ]<br>
>                  }<br>
>              }<br>
>          ],<br>
><br>
> Regards,<br>
><br>
> David<br>
><br>
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</blockquote></div>