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Cisco Bug: CSCvs36043 - MKA-MACSEC: C9300 key server, 10Gig intf between IE5000 & 9300: traffic loss after shut / no shut

Last Modified

Apr 12, 2020

Products (1)

  • Cisco Industrial Ethernet 5000 Series Switches

Known Affected Releases


Description (partial)

When C9300 act as key server, traffic loss between IE5K and C9300 devices on doing simultaneous shut and no shut on the 10Gig ports.

Software Conditions: Known to occur on IE release(s) : 15.2(7)E1

When 10G uplinks interfaces are connected between 9300 and IE5000 , with PSK based MKA macsec.
Traffic lose is seen after performing " shut/no shut" on either sides of macsec link.
macsec session is " SECURE" , but ping will fail.
Issue is seen only when 9300 acting act key server.
Issue is seen only with 10G uplink interfaces.

Hardware models impacted: IE5000 and C9300
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