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Cisco Bug: CSCvs74413 - Modifying the child service policy causes the standby chassis/switch to reboot due to sync failure.

Last Modified

Aug 29, 2020

Products (20)

  • Cisco IOS
  • Cisco 4221 Integrated Services Router
  • Cisco ASR 1000 Series IOS XE SD-WAN
  • Cisco 1101 Industrial Integrated Services Router
  • Cisco 4431 Integrated Services Router
  • Cisco 4321 Integrated Services Router
  • Cisco 4331 Integrated Services Router
  • Cisco ASR 1002-X Router
  • Cisco ASR 1001-X Router
  • Cisco Cloud Services Router 1000V
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Known Affected Releases

16.11.1a 16.12.2 16.12.3 17.2.1 17.3.1

Description (partial)

Symptom:
Modifying the child service policy causes the standby chassis/switch to reboot due to sync failure.

Conditions:
1. Configure the below given service policy :

policy-map bobby
class class-default
  shape average 6000000000
   service-policy sammy
 
policy-map sammy
class output_video
  bandwidth 1000000
  police 1000000000
class output_voice
  bandwidth 1000000
  police 1000000000
class output_signalling
  bandwidth 1000000
  police 10000000
 

2. Apply it on the switch interface
interface TwentyFiveGigE2/0/20
description SPIRENT
no switchport
ip address 10.106.8.1 255.255.255.0
load-interval 30
service-policy output bobby 

3. Change/modify the service policy configuration Sammy 

itf-wynnum-SWV(config)#policy-map sammy
itf-wynnum-SWV(config-pmap)#no class output_video
itf-wynnum-SWV(config-pmap)#no class output_voice
itf-wynnum-SWV(config-pmap)#no class output_signalling
Got unsupported policy Type!!!
itf-wynnum-SWV(config-pmap)#end
 
!config output
policy-map sammy
class output_signalling
!

itf-wynnum-SWV#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
itf-wynnum-SWV(config)#policy-map sammy
itf-wynnum-SWV(config-pmap)#class output_signalling
itf-wynnum-SWV(config-pmap-c)#bandwidth remaining percent 7
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  • Status
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