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Cisco Bug: CSCvv20260 - LLQ policer disappears when changed policy configuration

Last Modified

Oct 12, 2020

Products (1)

  • Cisco SD-WAN

Known Affected Releases

19.2.2

Description (partial)

Symptom:
LLQ policer disappears when changed policy configuration in some order.
This issue can be confirmed with "show policer" output.

# when the issue NOT occur
vedge2000# show policer

                                                            OOS
NAME                 INDEX  DIRECTION  RATE       BURST     ACTION  OOS PKTS  OOS BYTES
------------------------------------------------------------------------------------------
ge2_1_llq            12     out        50000000   5000      drop    10171337  5756976742      <<<<  llq policer
TCPOPT_SYN_POLICER   10     in         81920      10240     drop    0         0
TCPOPT_DATA_POLICER  11     in         100000000  12500000  drop    0         0


# when the issue occur
vedge2000# show policer

                                                            OOS     OOS   OOS
NAME                 INDEX  DIRECTION  RATE       BURST     ACTION  PKTS  BYTES
---------------------------------------------------------------------------------
TCPOPT_SYN_POLICER   10     in         81920      10240     drop    0     0          <<<<< no llq policer
TCPOPT_DATA_POLICER  11     in         100000000  12500000  drop    0     0

Conditions:
We've observed this issue occurred with following configuration order.

1. remove LLQ scheduling queue  -  no qos-scheduler monitoring scheduling
2. commit
3. add LLQ scheduling queue  -  qos-scheduler monitoring scheduling llq
4. commit
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