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Cisco Bug: CSCuw20711 - SCI: total_lblt not correct induce packet loss

Last Modified

Apr 20, 2017

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2CS

Description (partial)

Symptom:
For one Wideband interface which configured 16 channels.
The logical status of two channels are set to DOWN by ds resiliency.

total_lblt  of "show pxf cpu queue wideband-Cable 1/0/0:1" shows the counter of ds channels which would transfer traffic.
The expected value should be 14, while current value is 15.
This may induce packet loss(Since one channel has ds impairment)

Conditions:
1:Two wideband interface share some common channels;
  Wi 5/0/0:0  rf channel:0--3
  Wi 5/0/0:1  rf channel:0--2
2:CMs are using Wi 5/0/0:0 and ds resiliency is triggered which induce status of rf channel 1 set to DOWN
3:Remove channel 1 from Wi 5/0/0:1
4.The total_lblt would be wrong. greater than expected value.
5.This may induce packet loss
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