GE S2020 User Manual

Chapter 7 – Configuration
GE Reason Switches
REASON SWITCHES-TM-EN-3
191
default, all untagged frames are classified to the DPL 1. Allowed
values are from 0 to 3;
o PCP: indicates PCP that will be used the ingress process. These
ports will classify untagged frames to the PCP class configured at
this field and will forward tagged and priority-tagged frames to the
PCP queue embedded at the PCP bits in the 802.1Q frame. By
default, all untagged frames are classified to the PCP 0 queue,
which means best-effort class-of-service for that packets. Allowed
values are the PCP bits range values (from 0 to 7);
o DEI: indicates the Drop Eligible flag to be used in the ingress
process. These ports will classify untagged frames to the DEI class
configured at this field and will forward tagged and priority-tagged
frames to the DEI embedded at the frame. DEI level 0 means that
packet cannot be dropped, and level 1, means that packets are
allowed to be dropped. By default, all untagged frames are
classified to the DPL 0. Allowed values are 0 and 1;
o Tag Class.: indicates classification mode to be used by the port.
Tag Class field is a hyperlink that allows accessing QoS Ingress Port
Tag Classification, where it is allowed to configure a PCP-to-QoS
queue at each port independently. This configuration is only
applied in tagged or priority-tagged frames, that is, frames with
PCP information. Possible values are Disabled and Enabled.
Disabled means that PCP used in tagged and priority-tagged
frames will be the value embedded at the frame, and enabled
means that QoS queue selected by each PCP value will be as
configured in that port. Possible configuration after clicking Tag
Class hyperlink are as follows:
 Tag Classification: indicates if Tag Classification for
tagged frames should be enabled or not. Possible values
are Enabled and Disabled. Selecting Enable allow port to
map PCP incoming values to configured QoS queue, and
selection Disable allow port to map PCP incoming values
to the corresponding QoS queue;
 PCP: show PCP values that can be configured;
 DEI: show DEI values that can be configured;
 QoS class: indicates which QoS queue the frames with
PCP and DEI values in the row should be redirected. This
allows redirecting incoming frames from one PCP level to
another queue;
 DP level: indicates which DP levels the frames with PCP
and DEI values in the row should be redirected. This
allows configuring incoming frames from a given PCP and
DEI values to a determined DPL parameter;
After one of the Tag Class configurations described before is changed, there are
buttons that allows the user to save, discard or cancel de configuration.

GE S2020 Specifications

General

Brand	GE
Model	S2020
Category	Switch
Language	English