06-28-2018 01:11 AM - edited 02-21-2020 10:59 AM
as per topic Do ISE need to rejoin active directory after reboot / reload / hard reboot ?
when i encounter issue when the ISE after reboot, the AD operational but got some error, Cisco TAC say.
"that is expected behaviour on the ISE. Whenever, the Active Directory loses connectivity with the ISE Node and disjoins, we must manually rejoin the Directory to the Node."
I very doubt the is correct, which that somehow is power maintanence or power shutdown at site, next morning, all user will unable to authenticate to ISE already.
anyone can advice if the statement is true?
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06-28-2018 02:40 AM
From my personal experience:
I never had to rejoin a node after a reboot or a reset of the ISE nodes
Out of many ISE software version upgrades and patch installs, I had to manually re-join the nodes once (I believe upgrade documentation does state that manual rejoin might be required after upgrade)
06-28-2018 01:23 AM
06-28-2018 01:30 AM
Hi, from what I know is major upgrade required, which like 1.3 > 2.0 example.
i think if everytime reboot need rejoin then customer will not buy ISE already.
do you have any supporting document? the ISE TAC fail to provide
06-28-2018 02:35 AM
06-28-2018 02:40 AM
From my personal experience:
I never had to rejoin a node after a reboot or a reset of the ISE nodes
Out of many ISE software version upgrades and patch installs, I had to manually re-join the nodes once (I believe upgrade documentation does state that manual rejoin might be required after upgrade)
06-28-2018 02:44 AM
I agree with you, unless the release note mention, normal reboot should not cause the issue.
I see if I can get a better Cisco TAC engineer to answer me
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