12-04-2022 01:11 AM - edited 12-04-2022 01:13 AM
I seen packet drop about "PuntPerCausePolicerDrops" process. I'd like to know what process it is?
IOS-XE Version 16.03.07, I've shown logging but haven't found anything related to packet drop at that time.
ASR1002-X #show platform hardware qfp active statistics drop
-------------------------------------------------------------------------
Global Drop Stats Packets Octets
-------------------------------------------------------------------------
BFDoffload 60 4920
BadUidbSubIdx 4 453
Disabled 2 797
GECLinkTxError 62 3968
Icmp 103 5110
InjectErr 1 24
IpFragErr 22732 33394006
IpTtlExceeded 91967 8667397
Ipv4NoAdj 12670747 974922231
Ipv4NoRoute 28531 6165699
Ipv4RoutingErr 1 56
MplsNoRoute 18 1522
MplsUnclassified 3 258
PuntPerCausePolicerDrops 17543 1684128
TailDrop 145824631 186878742286
UnconfiguredIpv4Fia 11497246 2857639468
UnconfiguredIpv6Fia 28908219 3502414292
Unresolved 876 86270
ASR1002-X# show platform hardware qfp active statistics drop detail | i PuntPerCausePolicerDrops
203 PuntPerCausePolicerDrops 17543 1684128
I searched for information and couldn't find anything about this process.
Bug : https://bst.cisco.com/bugsearch/bug/CSCuc21852 (No workaround)
Have this process impact with device or not?
Do I need to check anything further?
12-04-2022 02:08 AM
punt is process that forward traffic from NIC to CPU,
the Punt is control by Policer in order to protect CPU from high traffic flow to CPU,
this policer will drop any packet flow over specific value.
check CoPP.
12-04-2022 11:42 PM
Thank you sir. I have a questions. if this Punt process is drop. It will impact with device or not?
12-05-2022 12:47 AM
ASR1000 Punt-Policer Logging and Monitoring - Cisco
check this link to identify the punt cause.
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