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Cisco Bug: CSCvt83641 - Crash observed while executing "show sub apn xxxxxx network-type ipv6

Last Modified

Aug 24, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.20.0 21.5.24

Description (partial)

Symptom:
PGW crash observed while executing CLI command "show subscribers apn xxx network-type ipv6 "

Conditions:
Added following DNS IPv6 IP Address on this PGW. Here is the new/changed configuration:
##
context AAA
  apn xxx
    ipv6 dns primary <ipv6_address>
    ipv6 dns secondary <ipv6_address>
  exit
  apn yyy
    ipv6 dns primary <ipv6_address>
    ipv6 dns secondary <ipv6_address>
  exit 
###  

After this change, whenever we execute following command, we observe a sessmgr crash: 
show sub apn web.pcrf.vodafone.de network-type ipv6 

The command "show subs summar zzz", works normal, without any problem.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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