An index to a Drop Eligibility Indicator (DEI) marking list.
The marking list is a piece of metadata, i.e., it is data that
belongs to the frame but is not a field of the frame itself.
Once assigned to the frame it travels with the frame until the
frame is transmitted or discarded, this independent of all
frame manipulations that take place. The content of this
marking list is generated via a QoS profile or via a copy from
the frame's DEI in a VLAN sub-interface ingress rewrite. Note
that a frame has just one DEI marking list, i.e., if multiple
actions write to the same position in the list, then the last
write overwrites the previous.
As an example, it is possible to provide a metadata DEI to a
frame at the ingress side, this data travels with the frame
through the switch, and the metadata is used at the egress side
when a VLAN tag is pushed into the frame.
qos-pbit-marking-index
uint8
An index to a Priority Code Point bits (p-bits) marking list.
The marking list is a piece of metadata, i.e., it is data that
belongs to the frame but is not a field of the frame itself.
Once assigned to the frame it travels with the frame until the
frame is transmitted or discarded, and this is independent of
all frame manipulations that take place. The content of this
marking list is generated via a QoS profile or via a copy from
the frame's pbit in a VLAN sub-interface ingress rewrite. Note
that a frame has just one p-bits marking list, i.e., if
multiple actions write to the same position in the list, then
the last write overwrites the previous.
As an example, it is possible to provide a metadata pbit to a
frame at the ingress side, this data travels with the frame
through the switch, and the metadata is used at the egress side
when a VLAN tag is pushed into the frame.
tag-index
uint8
The index of the VLAN tag in a frame or in a piece of metadata.
When used as index of a VLAN tag in a frame, then:
- Tag 0 refers to the outer tag, i.e., the tag just after the
source MAC address.
- Tag 1 refers to the tag after tag 0.
Metadata is data that belongs to the frame but is not a field
of the frame itself. It is also a list that is indexed using a
tag-index. Once assigned to the frame it travels with the frame
until the frame is transmitted or discarded, and this is
independent of all frame manipulations that take place. The
content of this metadata is generated via a QoS profile or via
a copy from the frame's field in a VLAN sub-interface ingress
rewrite. Note that a frame has just one p-bits marking list,
i.e., if multiple actions write to the same position in the
list, then the last write overwrites the previous.
As an example, it is possible to provide a metadata pbit to a
frame at the ingress side, this data travels with the frame
through the switch, and the metadata is used at the egress side
when a VLAN tag is pushed into the frame.