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Cisco Bug: CSCvh81221 - CoPP rate set with strict values produces switch policy upgrade failure

Last Modified

Feb 02, 2018

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

13.0(1i)

Description (partial)

Symptom:
When Switch CoPP-Policy with strict values is applied subsequent switch software updates fail, because the SCP Filetransfer from APIC to Switch is stalled due to packets policed by CoPP. 

Filetransfer is extremely slow and eventually starts over but is never able to finish. 

After many hours of repetition APIC gives up and raises fault F1480.

Conditions:
apic1# moquery -c coppLeafProfile
Total Objects shown: 1

# copp.LeafProfile
name         : default
childAction  :
descr        :
dn           : uni/infra/coppleafp-default
lcOwn        : local
modTs        : 2018-01-14T12:35:00.445+00:00
nameAlias    :
ownerKey     :
ownerTag     :
rn           : coppleafp-default
status       :
type         : strict  <<<<<<<<< "CoPP Profile with strict values"
uid          : 0


apic1# show version | grep 101
 leaf        1           101         pod1-leaf1          n9000-13.1(1i)


apic1# show firmware upgrade status | grep 101
 1           101         n9000-13.1(1i)        n9000-13.0(1k)        waiting in queue           0       <<<<<< "waiting in queue since leaf upgrade never finishes"


Severity             : major
Fault Code           : F1480   <<<<< 'fault F1480 raised'
Cause                : upgrade-failed   
Acknowledged         : no
Last Transition      : 2018-01-14T16:35:00.445+00:00
Dn                   : uni/fabric/maintpol-AllSwitches/fd-[topology/pod-1/node-101/sys/fwstatuscont/upgjob/upgjobfault]-fault-F1480
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