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Cisco Bug: CSCta65641 - CoS marking support on inner vlan tag for QinQ tunnels

Last Modified

Feb 24, 2015

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Request for Inner CoS marking support on QinQ tunnels using 0x8100 ethertype as well as 802.1ad (0x88a8).

Feature needed for scenarios where the inner tag marking is required, as on the wholesaler DSLAM's the outer tag is removed and the inner tag is used for QoS on the DSL leg outbound to the CPE (CoS 6 is used for voice traffic).  So for end-to-end QoS to work, both outer and inner VLAN tags must have CoS set.
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