OPERATIONAL DEFECT DATABASE
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ISE 3.0 patch 5. (other version could be affected). Whenever LSD is enabled, high CPU is noticed, this is caused by network device sending an empty calling-station-ID value to ISE.
LSD is enabled. Network device is sending a calling-station-ID avp with empty value.
Disable LSD as long as you are on a non-impacted version by CSCwa90930
This is a bug from performance perspective only, not from authentication/session.
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