Cisco Bug: CSCup39653 - Inconsistent throughput observed after test cable cm-status command
Apr 19, 2019
- Cisco uBR10000 Series Universal Broadband Routers
Known Affected Releases
Symptom: Inaccurate large DS throughput is observed for a short interval. There are two symptoms for this issue: 1: The ds counter of sf may be double of the last correct value and value may be recover after 10 seconds; 2: If the sf is moved between WB and RBG(WB and NB) rapidly and frequently, may hit another symptom: The ds counter of sf would double/four/six....of the last correct value. And the abnormal value would not recover Conditions: 1. Select a modem with background traffic 2. Issue cm-status from CM under QAM/FEC failure 3. Trigger the DS resiliency moving the service flow move from WB to RBG/WB to NB. 4. Check CM thruput/counters using scm <> qos or scm <> coun 5.This issue hit in some rare condition 6: 2020/3g60 would hit this issue and SPA would not hit this issue as different algorithm.
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