Preview Tool

Cisco Bug: CSCus14747 - ASR903- CPU generated L2/L3 packets not sent via proper queues on egress

Last Modified

Feb 14, 2018

Products (21)

  • Cisco IOS
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ASR 901-6CZ-FS-D Router
  • Cisco ASR 901S-4SG-F-D Router
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901S-2SG-F-D Router
  • Cisco ASR 901S-2SG-F-AH Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
View all products in Bug Search Tool Login Required

Known Affected Releases


Description (partial)

When the 903 egress class-default queue was congested with traffic exceeding the QoS shaper bandwidth, 
DMR packet drops were observed not only for the default class (CoS 0), but also for all other non-default 
classes (CoS 3, 6, 7).

Likewise, when the egress default queue was congested, SSH response from the 903 (which SHOULD NOT be 
queued via the default queue per QoS settings) got increasingly slower as default queue congestion increased.

Sending L2/L3 traffic to 903 which required 903 to locally generate response packets.
903 egress QoS policy applied at main interface level. 903 ingress QoS policy applied at each service instance.
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.