Siemens SCALANCE XB-200 Configuration Manual page 186

Configuring with Web Based Management
5.5 The "Layer 2" menu
Description of the displayed boxes
Table 1 has the following columns:
● 1st column
Shows that the settings are valid for all ports.
● Priority / / Port VID / Acceptable Frames / Ingress Filtering
Select the setting in the drop-down list. If "No Change" is selected, the entry in table 2
remains unchanged.
● Copy to Table
If you click the button, the setting is adopted for all ports of table 2.
Table 2 has the following columns:
● Port
Shows the available ports. The port is made up of the module number and the port
number, for example port 0.1 is module 0, port 1.
● Priority
The CoS priority (Class of Service) used in a VLAN tag. If a frame is received without a
tag, it will be assigned this priority. The 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).
From the drop-down list, select the priority given to untagged frames.
● 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
– All
● Ingress Filtering
Specify whether the VID of received frames is evaluated
You have the following options:
– Enabled
– Disabled
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The device discards all untagged frames. Otherwise, the forwarding rules apply
according to the configuration.
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 XB-200/XC-200/XP-200 Web Based Management
Configuration Manual, 07/2016, C79000-G8976-C360-04