<div dir="auto">I am facing weird situation with fail over setup on my lab environment. I am facing issue when the failover dhcp appliance is added to my existing server.<div dir="auto">For the first time when i add failover to primary appliance, On primary appliance lease file i see the partner state as unknown and in the failover the messages are printing not responding recovery, so i shutdown the failover appliance and removed the failover config section from primary and restarted primary then it was working fine. <div dir="auto">As a trial of second attempt i increased mclt value to 3600 and added the failover section back to primary config and bring up the failover server now.</div><div dir="auto">The environment became most problematic none of the servers are granting leases to devices On the primary lease file it says </div><div dir="auto">my state partner-down</div><div dir="auto">peer state recovery <div dir="auto"><br></div><div dir="auto">Why do we get these recovery,partner down, unknown status when i add the failover to my environment?</div><div dir="auto">Or do we have any best practice steps how to add failover to existing server without causing any outages?</div><div dir="auto"><br></div><div dir="auto">Any help would be appreciated </div><div dir="auto">Thanks </div><div dir="auto"><br></div><div dir="auto"><br></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, 6 Oct 2019, 21:04 Surya Teja, <<a href="mailto:suryateja042@gmail.com">suryateja042@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">Hi Bill Thanks for your reply, <div dir="auto">Yes I see traffic on the peer ports which i mentioned in the fail over section of my configuration file. </div><div dir="auto">My mclt value is 1800(30 min).</div><div dir="auto">I am seeing these issues on the failover server and some times I see the logs saying peer hold all free leases, but that scope is not completely full with active entries in the dhcpd.lease file of that specified server</div><div dir="auto"><br></div><div dir="auto">And one more strange thing I observerd in the lease file. In the file I have statements like my status and peer status. In that peer status is saying <b>unknown</b> </div><div dir="auto">When will this happen? In general scenario it should be normal that is what i got from internet, but the state is not getting updated in the lease file.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 5 Oct 2019, 21:16 Bill Shirley, <<a href="mailto:bill@c3po.polymerindustries.biz" target="_blank" rel="noreferrer">bill@c3po.polymerindustries.biz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Assuming you're referring to DHCP failover, is there any traffic
flow on the<br>
<font color="#993300">port</font> and <font color="#993300">peer
port</font> in the failover stanza?<br>
<br>
What is your value for <font color="#993300">mclt</font>?<br>
<br>
Which server, primary or secondary, is giving the recovering
message?</p>
<p>Bill<br>
</p>
<div>On 10/5/2019 9:33 AM, Surya Teja wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi I have an issue in the lease flow with isc dhcp
service. In the logs it is printing <b>
<span style="color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif;font-size:13px">eth0:
not responding (recovering) </span></b>
<div><font face="Roboto, Arial, sans-serif" color="#263238">My
local is set up with active-active mode(splt value as
50-50%) and because of some reason one of the appliance
went down for some duration. </font><span style="color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">I
observed this and i bring it up, and duration of down is
nearly 15hr.</span></div>
<div><span style="color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">After
i bring it up. </span><span style="color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">I
am seeing the logs saying not responding (recovering). Its
been more than two hours still I am getting the same logs </span></div>
<div><span style="color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">Does
any one have any idea</span><span style="color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif;font-size:13px"> about this
scenario and how to get the environment stable</span></div>
</div>
<br>
<fieldset></fieldset>
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