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Cisco Bug: CSCtd98378 - US throughput is impacted by DS traffic

Last Modified

Apr 07, 2013

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases


Description (partial)

When ATDMA/64QAM upstreams are saturated with traffic, large amount of downstream traffic may impact upstream throught, meanwhile the impaction is decided by whether DBS is configured or not. 

All below conditions must be met simultaneously to trigger this issue: 
1 PRE2 card is used. 
2 There are large amount of packet queues (>500) congested by large amount of traffic. 
3 Packet length is no less than 1K-Byte.
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