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Cisco Bug: CSCvs10497 - cpp_cp_svr fast memory leak when nbar custom protocol is configured

Last Modified

Aug 25, 2020

Products (14)

  • Cisco 4000 Series Integrated Services Routers
  • Cisco ASR 1000 Series IOS XE SD-WAN
  • Cisco 4221 Integrated Services Router
  • Cisco 4331 Integrated Services Router
  • Cisco 4321 Integrated Services Router
  • Cisco ASR 1002-X Router
  • Cisco ASR 1001-X Router
  • Cisco 4351 Integrated Services Router
  • Cisco ISR 4000 Series IOS XE SD-WAN
  • Cisco ASR 1002-HX Router
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Known Affected Releases

16.9.4

Description (partial)

Symptom:
configured with nbar custom protocol as the following:
ip nbar custom proto1 composite server-name "*abc.com" 
ip nbar custom proto2 composite server-name "*xyz.com*" 
ip nbar custom proto3 composite server-name "*123.com*" 
ip nbar custom proto4 composite server-name "*456.com*" 
ip nbar custom proto5 composite server-name "*789.com*"

observed "Used" increasing rapidly:
Router#show platform software status control-processor br
Load Average
 Slot  Status  1-Min  5-Min 15-Min
  RP0 Healthy   1.99   1.96   1.34

Memory (kB)
 Slot  Status    Total     Used (Pct)     Free (Pct) Committed (Pct)
  RP0 Healthy  8165760  2912748 (36%)  5253012 (64%)   3133364 (38%)    

observed "RSS" and "Total" memory increasing rapidly:
Router#show platform software process memory r0 all sorted | in cpp
 28219   2004288    420960    369777    276024     62976    357984        cpp_cp_svr

Conditions:
ip nbar custom protocol is configured
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