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Cisco Bug: CSCvi76533 - H/W registers populating ERSPAN timestamp are not updated after being initialized to zero

Last Modified

Apr 24, 2018

Products (1)

  • Cisco Nexus 5000 Series Switches

Known Affected Releases


Description (partial)

Erspan time stamps are populated from  the h/w registers . These  h/w registers are  initialized with zero and never updated later and as a result of this, time stamps carried   in ERSPAN packet will not  reflect  the actual time , but the relative time from the time of switch reboot . Hence this values can not be used to compare the time stamps between packets from more than one switch .

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