Traffic Statistics with Packet Drop Location
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Feature Name |
Release |
Description |
|---|---|---|
|
Traffic Statistics with Packet Drop Location |
Release 24.2.11 |
This feature now extends support on the Cisco NCS 540 Series routers running on Cisco IOS XR7. |
|
Traffic Statistics with Packet Drop Location |
Release 24.2.1 |
Introduced in this release on the following Cisco NCS 540 router variants running on Cisco IOS XR:
We help you save debugging time to locate packet drops by automatically detecting nonzero traffic drops from the commands running in the background and giving you the exact location of the packet drop. In earlier releases, you used multiple show commands with their respective locations to detect packet drops. This feature introduces the show drops all command. |
Earlier, finding the exact location of packet drop was a long and tedious process as there are multiple node locations. You were executing show commands with their different locations to detect the packet drop location.
Starting Cisco IOS XR Software Release 24.2.1, finding a packet drop location has become easy and quick. You can use the show drops all command to know the exact packet drop location. This command shows all nonzero traffic-drops in the node at one place. This command automatically runs the required IOS XR debug commands in the background and removes insignificant information from the command output.
The following commands outputs are integrated in the show drops all command:
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show arp traffic location
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show cef drops location
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show lpts pifib hardware entry brief location
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show netio drops location
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show controllers npu stats counters-all instance all location
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show controllers npu stats counters-all detail instance all location
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show controllers npu stats traps-all instance all location
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show controllers npu stats voq base 0 instance all location
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show controllers npu stats voq base 24 instance all location
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show controllers npu stats voq base 32 instance all location
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show controllers npu stats voq ingress interface all instance all location
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show spp node-counters location
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show spp client detail location
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show fwd statistics location
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show controller fia statistics detail instance all location
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show controller fia diagshell all "diag counter nZ" location
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show interfaces location
Restrictions for Detecting Packet Drop Location
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If MACsec is enabled on routers, then this command doesn't show packet drops. To check if MACsec is enabled, you can use the show macsec mka summary command.
Monitor Packet Drops
Use show drops all location all to see the drops from all location or node that have happened in the system. Also, you can use show drops all ongoing to see ongoing drops on the system. This command output shows ongoing drops since the last time command was executed.
The command output given here is the truncated version.
Router#show drops all ongoing location all
=====================================
Checking for ongoing drops on 0/4/CPU0
=====================================
filtering...
=====================================
Checking for ongoing drops on 0/4/CPU0
=====================================
=====================================
Checking for ongoing drops on 0/3/CPU0
=====================================
show controllers npu stats counters-all instance all location:
.
.
.
[np:Slot: 3, instance: 3] ENQ_DISCARDED_PACKET_COUNTER : +1950
show controllers npu stats counters-all detail instance all location:
[np:Slot: 3, instance: 0] IQM1 TotDscrdByteCnt : +133008
show controller fia statistics detail instance all location:
[fia:FIA Statistics Rack: 0, Slot: 3, instance: 0] IQM0 QueueEnqDscrdPktCnt: +1304
show controller fia diagshell all "diag counter nZ" location:
.
.
.
[fia:R/S/I: 0/3/1] IQM0 IqmQueueEnqDiscardedPacketCounter: +45
=====================================
Checking for ongoing drops on 0/RP0/CPU0
=====================================
show interfaces:
[Interface:Bundle-Ether10000] input errors: +65
[Interface:Bundle-Ether10001] input errors: +65
[Interface:Bundle-Ether10002] input errors: +65
[Interface:Bundle-Ether10003] input errors: +64
[Interface:Bundle-Ether10004] input errors: +65
[Interface:Bundle-Ether10005] input errors: +65
[Interface:Bundle-Ether10006] input errors: +65
[Interface:Bundle-Ether10007] input errors: +64
[Interface:Bundle-Ether10008] input errors: +64
[Interface:Bundle-Ether10009] input errors: +65
[Interface:Bundle-Ether20001] input errors: +65
=====================================
Checking for ongoing drops on 0/2/CPU0
=====================================
show controller fia statistics detail instance all location:
[fia:FIA Statistics Rack: 0, Slot: 2, instance: 0] IQM0 IqmCntCmdErrorsFilterA: +4590
[fia:FIA Statistics Rack: 0, Slot: 2, instance: 0] IQM0 IqmCntCmdErrorsFilterB: +4590
[fia:FIA Statistics Rack: 0, Slot: 2, instance: 0] IQM0 IrppCntCmdErrorsFilterA: +4590
[fia:FIA Statistics Rack: 0, Slot: 2, instance: 0] IQM0 IrppCntCmdErrorsFilterB: +4590
[fia:FIA Statistics Rack: 0, Slot: 2, instance: 0] IQM1 IqmCntCmdErrorsFilterA: +4590
[fia:FIA Statistics Rack: 0, Slot: 2, instance: 0] IQM1 IqmCntCmdErrorsFilterB: +4590
show controller fia diagshell all "diag counter nZ" location:
[fia:R/S/I: 0/2/0] IPS0 IpsFsmrqDelayCounter: +9
[fia:R/S/I: 0/2/0] IPS1 IpsFsmrqDelayCounter: +7
[fia:R/S/I: 0/2/1] IPS0 IpsFsmrqDelayCounter: +10
[fia:R/S/I: 0/2/1] IPS1 IpsFsmrqDelayCounter: +7
show interfaces:
[Interface:HundredGigE0/2/0/28] input errors: +113
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