Preview Tool

Cisco Bug: CSCtd05810 - BAC CNR extensions report: failed to find thread index

Last Modified

Feb 22, 2014

Products (1)

  • Cisco Broadband Access Center for Telco and Wireless

Known Affected Releases

2.7(1.7) 4.0(1.4)

Description (partial)


CNR DHCP server exhibits poor performance and is dropping packets.

BAC CNR DHCP extensions are emitting the follow error message to the DHCP server log:

name/dhcp/1 Error Extension 0 04927 BAC: failed to find thread index

The DHCP log contains messages indicating the extension "preClientLookup" is failing causing packets to be dropped:

name/dhcp/1 Warning Extension 0 04575 A processing failure occurred when processing extension 'preClientLookup' when run for extension point 'pre-client-lookup' on DHCP Request 'R123456'.
name/dhcp/1 Info Server 0 04473 Extension 'preClientLookup' running at extension point 'pre-client-lookup' on DHCP request 'R123456' failed, which forced the packet to be dropped!


BAC 2.7(1.7) or 4.0(1.4) or earlier is being used with CNR 7.1.
The DHCP server host machine processor contains many cores.
Bug details contain sensitive information and therefore require a 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.