Guest

Preview Tool

Cisco Bug: CSCuo44701 - DS384, DCC Tech 4: Timing Offsets vary but should be same across QAMs

Last Modified

Feb 08, 2017

Products (1)

  • Cisco RF Gateway Series

Known Affected Releases

15.0(2)SQB1

Description (partial)

Symptom:
DCC Technique 4 may fail when a modem is moved (DS-only, no US move) from a group of four QAMs to some other group of four or more QAMs within the same port in a DS384. The failure will be due to Timing Offset, wherein the Timing Offset of the modem in a group of four QAMs will differ from other QAMs within the same port on the DS384 by well over 10 ticks [10x(1/10.24MHz) = 976.56ns]. In order for DCC Tech 4 to be successful, the Timing Offset must be no more than 10 ticks between the old DS and the new DS. The less the Timing Offset difference between the old DS and the new DS, the better.

Conditions:
RFGW-10, DS384
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.