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Cisco Bug: CSCvv63713 - ENH: IPoE BNG - CoS values on DHCP unicast packets over PWHE

Last Modified

Sep 15, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

6.5.3.BASE 6.6.3.BASE

Description (partial)

When running IPoE (DHCP) BNG using PWHE ambiguous q-in-q interfaces, customer have an issue whereby the DHCP IPv4 "inner-cos" and "outer-cos" configuration commands are ignored, specifically for *unicast* DHCP packets emitted by the router toward the subscriber, and are set to CoS 6 regardless of the configuration used (which for us, is 0)
The problem is also specific to PWHE, customer find that when using bundle-based subscribers then even for the unicast packets the CoS configuration is respected.

The problem is also specific to PWHE.

Customer is not using the DHCP proxy in his configuration
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