Siemens SCALANCE XM-400 Configuration Manual page 262

Configuring with Web Based Management
5.5 The "Layer 2" menu
Table 2 has the following columns:
● Port
Shows the available ports and link aggregations. The port is made up of the module number
and the port number, for example port 0.1 is module 0, port 1.
● Priority
From the drop-down list, select the priority given to untagged frames.
The CoS priority (Class of Service) used in the VLAN tag. If a frame is received without a
tag, it will be assigned this priority. This priority specifies how the frame is further processed
compared with other frames.
There are a total of eight priorities with values 0 to 7, where 7 represents the highest priority
(IEEE 802.1p Port Priority).
● Port VID
Select the VLAN ID from the drop-down list. Only VLAN IDs defined on the "VLAN >
General" page can be selected.
If a received frame does not have a VLAN tag, it has a tag with the VLAN ID specified here
added to it and is sent according to the rules at the port.
● Acceptable Frames
Specify which types of frames will be accepted. The following alternatives are possible:
– Tagged Frames Only
– Untagged and Priority Tagged Only
– All
● Ingress Filtering
Specify whether the VID of received frames is evaluated
You have the following options:
– Enabled
– Disabled
Steps in configuration
1. In the row of the port to be configured, click on the relevant cell in the table to configure it.
2. Enter the values to be set in the input boxes as follows.
262
The device discards all untagged frames. Frames tagged with "0" are treated like
untagged frames. The device forwards all tagged frames. Otherwise, the forwarding
rules apply according to the configuration.
The device discards all tagged frames. The device forwards all untagged frames and
frames with a priority (Priority Tagged Frames). Otherwise, the forwarding rules apply
according to the configuration.
If you have configured the Bridge mode "Provider" this means that the device treats all
incoming frames like untagged frames.
The device forwards all frames.
The VLAN ID of received frames decides whether they are forwarded: To forward a
VLAN tagged frame, the receiving port must be a member in the same VLAN. Frames
from unknown VLANs are discarded at the receiving port.
All frames are forwarded.
SCALANCE XM-400/XR-500 Web Based Management (WBM)
Configuration Manual, 05/2017, C79000-G8976-C248-12