Guest

Preview Tool

Cisco Bug: CSCuj38715 - Rudy: "RM Drops" counter picks up the current data, rather than cache

Last Modified

Feb 06, 2017

Products (1)

  • Cisco ASR 900 Series Aggregation Services Routers

Known Affected Releases

15.3(3)S

Description (partial)

Symptom:
While checking for policer/queue drops, we can see that 
sh platform hardware pp active feature qos policer cpu <#> 0 
can clear the congestion statistics, if there is no active packets.

Example:

R#sh platform hardware pp active feature qos policer cpu 1 0
########### Stats for CPU queue 1 ##########
Internal Qnum: 18177
Policer conform: 202409 (packets) 13203236 (bytes)
Policer exceed: 2182536 (packets) 148412052 (bytes)
RM Drops: 2225512 (packets) 204746684 (bytes)
Policer commit rate is: 1000000, Policer burst commit is 100000
 
Post the 2nd iteration, the RM drop is shown as zero:

R#sh platform hardware pp active feature qos policer cpu 1 0
########### Stats for CPU queue 1 ##########
Internal Qnum: 18177
Policer conform: 202414 (packets) 13203556 (bytes)
Policer exceed: 2182536 (packets) 148412052 (bytes)
RM Drops: 0 (packets) 0 (bytes) 
Policer commit rate is: 1000000, Policer burst commit is 100000

Conditions:
When the show command sh platform hardware pp active feature qos policer cpu <#> 0  
is used to check a queue details and there is no congestion currently active.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.