Cambium Networks PTP 820 Series User Manual page 891

Chapter 19: Quality of Service (QoS) (CLI)
Configuring Marking (CLI)
This section includes:
•
Marking Overview (CLI)
•
Configuring Marking Mode on a Service Point (CLI)
•
Marking Table for C-VLAN UP Bits (CLI)
•
Marking Table for S-VLAN UP Bits (CLI)
Marking Overview (CLI)
When enabled, PTP 820G and PTP 820F's marking mechanism modifies each frame's 802.1p UP bit and CFI/DEI bits
according to the classifier decision. The CFI/DEI (color) field is modified according to the classifier and policer
decision. The color is first determined by a classifier and may be later overwritten by a policer. Green color is
represented by a CFI/DEI value of 0, and Yellow color is represented by a CFI/DEI value of 1. Marking is performed
on egress frames that are VLAN-tagged.
The marking is performed according to global marking tables that describe the 802.1p UP bits and the CFI bits (for
C-VLAN tags) or DEI bits (for S VLAN tags). The marking mode attribute in the service point egress attributes
determines whether the frame is marked as Green or Yellow according to the calculated color.
Note
The calculated color is sent to the queue manager regardless of whether the marking bit is set.
Regular marking is only performed when:
•
The outer frame is S-VLAN, and S-VLAN CoS preservation is disabled
•
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.
Configuring Marking Mode on a Service Point (CLI)
To enable or disable marking mode on a service point, go to service view for the service and enter the following
command:
service[SID]>sp marking set spid <sp-id> mode <mode>
Table 234 Marking Mode on Service Point CLI Parameters
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Configuring Marking (CLI)