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Cisco Bug: CSCun34856 - All VLANs are suspended if one has qos policy but TCAM not configured

Last Modified

May 11, 2018

Products (7)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 3164Q Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch

Known Affected Releases

6.1(2)I2(0.206) 6.1(2)I2(2a)

Description (partial)

If a QoS policy is applied on a VLAN which is not active on any ports in the system and if the TCAM Region for VLAN QoS is not carved, the error is not reported right away and is reported when the first port is brought up. Also, all the VLANs on that port are error-disabled instead of the VLAN that is affected.

- All the ports in the VLAN are down.
- A QoS service policy is applied on the VLAN when VLAN QoS TCAM region is not configured.
- No error is given yet to the user as the policy is not yet pushed to the linecard.
- When the trunk interfaces are coming up they will go to error disabled as TCAM region is not configured.
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