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Cisco Bug: CSCul03067 - tunnel interface QoS tail drop counter reported at physical interface

Last Modified

Dec 11, 2015

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.3(1)S

Description (partial)

Symptom:
tunnel interface QoS tail drop counter reported at physical interface

Service policy is applied on the tunnel 5432.

--Drops are seen on the output of "show policy-map tunnel 5432"
--Drops are seen on the physical interface over which the tunnel is built.
--NO drops are seen on the Tunnel interface.
--From the output below OQD is "0" for the tunnel interface

BGL.Q.20-ASR1K-1# show platform hardware qfp active statistics drop 
-------------------------------------------------------------------------
Global Drop Stats                         Packets                  Octets  
-------------------------------------------------------------------------
TailDrop                                   753351                63281484  

BGL.Q.20-ASR1K-1#show inter summary                                 
<snip>
Interface                   IHQ       IQD       OHQ       OQD      RXBS      RXPS      TXBS      TXPS      TRTL
-----------------------------------------------------------------------------------------------------------------
* GigabitEthernet0/0/1          0         0         0    753351         0         0    735000      1094         0
* GigabitEthernet0/0/2          0         0         0         0   8648000     18016         0         0         0
* Tunnel5432                    0         0         0         0         0         0  12697000     22674         0

Conditions:
When packets are dropped on a tunnel interface, the output of:
 - show platform hardware qfp act interface all statistics drop_summary
 - show interface summary

would only show the dropped packets against the phsyical interface, which made it difficult to determine which tunnel the packets were being dropped on.
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