Chapter 7: Quality of Service (QoS)
Configuring Marking
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Regular marking is only performed when:
The outer frame is S-VLAN, and S-VLAN CoS preservation is disabled, or
The outer frame is C-VLAN, and C-VLAN CoS preservation is disabled.
If marking and CoS preservation for the relevant outer VLAN are both disabled, special marking is
applied. Special marking means that marking is performed, but only according to the values
defined for Green frames in the 802.1Q and 802.1AD marking tables.
When marking is performed, the C-VLAN or S-VLAN 802.1p UP bits are re-marked according to the
calculated CoS and color, and the mapping table for C-VLAN or S-VLAN.
Enabling Marking
Marking is enabled and disabled on the service point level. See
Ethernet Service Points – Egress
Modifying the 802.1Q Marking Table
The 802.1Q Marking table enables you to modify the CoS to UP and CFI bit mapping that is
implemented when marking is enabled.
To modify the 802.1Q Marking table:
1.
Select Ethernet > QoS > Marking > 802.1Q. The 802.1Q Marking page opens. Each row in the
802.1Q Marking page represents a CoS and color combination.
Figure 156 802.1Q Marking Page
2.
Select the row you want to modify and click Edit. The 802.1Q Marking - Edit page opens.