User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
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802.1p bits.
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DSCP values.
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MPLS EXP field.
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Default CoS
IP-20 performs the classification on each frame ingressing the system via the
logical interface. Classification is performed step by step from the highest priority
to the lowest priority classification method. Once a match is found, the classifier
determines the CoS and Color decision for the frame for the logical interface-level.
For example, if the frame is an untagged IP Ethernet frame, a match will not be
found until the third priority level (DSCP). The CoS and Color values defined for
the frame’s DSCP value will be applied to the frame.
You can disable some of these classification methods by configuring them as un-
trusted. For example, if 802.1p classification is configured as un-trusted for a
specific interface, the classification mechanism does not perform classification by
UP bits. This is useful, for example, if classification is based on DSCP priority bits.
If no match is found at the logical interface level, the default CoS is applied to
incoming frames at this level. In this case, the Color of the frame is assumed to be
Green.
18.1.3
Configuring VLAN Classification and Override (CLI)
You can specify a specific CoS and Color for a specific VLAN ID. In the case of
double-
tagged frames, the match must be with the frame’s outer VLAN. Permitted
values are CoS 0 to 7 and Color Green or Yellow per VLAN ID. This is the highest
classification priority on the logical interface level, and overrides any other
classification criteria at the logical interface level.
To configure CoS and Color override based on VLAN ID, go to interface view for
the interface and enter the following command:
eth type eth [x/x]>vlan-cos-override set outer-vlan-id <outer-
vlan-id> inner-vlan-id <inner-vlan-id> use-cos <use-cos> use-
color <use-color>
To display configured VLAN-based CoS and Color override values, go to interface
view for the interface and enter the following command:
eth type eth [x/x]>vlan-cos-override show outer-vlan-id <outer-
vlan-id> inner-vlan-id <inner-vlan-id>
To delete a set of VLAN-based CoS and Color override values, go to interface view
for the interface and enter the following command:
eth type eth [x/x]>vlan-cos-override delete outer-vlan-id
<outer-vlan-id> inner-vlan-id <inner-vlan-id>
Table 166: VLAN Classification and Override CLI Parameters
Parameter
Input Type
Permitted Values
Description
outer-vlan-id
Number
1
–
4094 (except 4092,
which is reserved for the
default management
service)
For double-tagged frames, the S-
VLAN value mapped to the CoS and
Color values defined in the
command.
