Service Egress and Ingress QoS Policies
Quality of Service Guide 343
Context config>qos>sap-egress>fc
Description This command explicitly defines the egress IEEE 802.1p (dot1p) bits marking for fc-name. When the
marking is set, all packets of fc-name that have either an IEEE 802.1q or IEEE 802.1p encapsulation
use the explicitly defined dot1p-value. If the egress packets for fc-name are not IEEE 802.1q or IEEE
802.1p encapsulated, the dot1p command has no effect.
The optional in-profile dot1p-value out-profile dot1p-value [exceed-profile dot1p-value] structure
added to the existing dot1p command will add the capability to mark on an egress SAP the in, out, and
exceed profile status via a certain dot1p combination, similarly with the DE options.
Once the in-profile keyword is added, then the out-profile keyword must be specified, however,
exceed-profile is optional. If the optional exceed-profile dot1p-value is not included, any exceed
profile traffic will be marked with the same dot1p value as configured for the out of profile traffic.
The command with the additional structure may be used on the SAP when the internal in, out, and
exceed profile status needs to be communicated to an access network/customer device that does not
support the DE bit.
When these commands are used the DE Bit or the equivalent field is left unchanged by the egress
processing if a tag exists. If a new tag is added, the related DE bit is set to 0.
When the previous command (dot1p dot1p-value) is used without the new structure, it means that the
dot1p-value is used for the entire forwarding class, same as before. The two versions of the command
are mutually exclusive.
Independently the in or out/exceed profile status may be indicated via the setting of the DE bit setting
if the de-mark command is used. The DE value used for exceed profile is the same as that used for out
of profile.
In the PBB case, for a Backbone SAP (B-SAP) and for packets originated from a local I-VPLS/PBB-
Epipe, the command dictates the marking of the dot1p bits for both the BVID and ITAG.
The commands dot1p-inner and dot1p-outer take precedence over the dot1p command if both are
specified in the same policy.
The no form of the command sets the IEEE 802.1p or IEEE 802.1q priority bits to 0.
Default 0
Parameters in-profile dot1p-value — Specifies the 802.1p value to set for in-profile frames in this forwarding
class.
Values 0 to 7
out-profile dot1p-value
— specifies the 802.1p value to set for out-profile frames in this
forwarding class.
Values 0 to 7
exceed-profile dot1p-value — specifies the 802.1p value to set for exceed-profile frames in this
forwarding class.
Values 0 to 7
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