User guide

RUGGEDCOM ROS
User Guide
Chapter 5
Setup and Configuration
Configuring Priority to CoS Mapping 155
Parameter Description
Port(s) Synopsis: Any combination of numbers valid for this parameter
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
Default CoS Synopsis: { Normal, Crit }
Default: Normal
This parameter allows to prioritize frames received on this port that are not prioritized
based on the frames contents (e.g. priority field in the VLAN tag, DiffServ field in the IP
header, prioritized MAC address).
Inspect TOS Synopsis: { No, Yes }
Default: No
This parameters enables or disables parsing of the Type-Of-Service (TOS) field in the
IP header of the received frames to determine what Class of Service they should be
assigned. When TOS parsing is enabled the switch will use the Differentiated Services
bits in the TOS field.
4. Click Apply.
Section 5.4.3
Configuring Priority to CoS Mapping
Frames received untagged can be automatically assigned a CoS based on their priority level.
To map a priority level to a CoS, do the following:
1. Navigate to Classes of Service » Configure Priority to CoS Mapping. The Priority to CoS Mapping table
appears.
Figure 104: Priority to CoS Mapping Table
2. Select a priority level. The Priority to CoS Mapping form appears.