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Cisco Bug: CSCur28109 - COPP Policies need to be modifiable on 62xx

Last Modified

Sep 11, 2019

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.2(2c)A

Description (partial)

Symptom:
IGMP groups will not be programmed correctly on the FI and multicast traffic will not flow correctly.  You will see violations if you see the following:

UCS-A(nxos)# sh policy-map interface control-plane class copp-system-class-igmp
Control Plane
 
  service-policy  input: copp-system-policy-default
 
    class-map copp-system-class-igmp (match-any)
      match protocol igmp
      police cir 1024 kbps , bc 65535 bytes
        conformed 250907808688 bytes; action: transmit
        violated 97842375808 bytes;

Conditions:
If a lot of IGMP joins hit the switch at the same time, some may be dropped if they violate the default COPP policy
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