Siemens RUGGEDCOM ROS v4.3 - Configuring Classes of Service for Specific Ethernet Ports

Chapter 5
Setup and Configuration
RUGGEDCOM ROS
User Guide
182 Configuring Classes of Service for Specific Ethernet Ports
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Figure107:Global CoS Parameters Form
1.CoS Weighting Options 2.Apply Button 3.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
CoS Weighting Synopsis:  { 8:4:2:1, Strict }
Default:  8:4:2:1
During traffic bursts, frames queued in the switch pending
transmission on a port may have different CoS priorities. This
parameter specifies weighting algorithm for transmitting different
priority CoS frames.
Examples:
• 8:4:2:1 - 8 Critical, 4 High, 2 Medium and 1 Normal priority CoS
frame
• Strict - lower priority CoS frames will be only transmitted after
all higher priority CoS frames have been transmitted
3. Click Apply.
4. If necessary, configure CoS mapping based on either the IEEE 802.1p priority or Differentiated Services (DS)
field set in the IP header for each packet. For more information, refer to Section5.3.3, “Configuring Priority to
CoS Mapping” or Section5.3.4, “Configuring DSCP to CoS Mapping” .
Section5.3.2
Configuring Classes of Service for Specific Ethernet Ports
To configure Classes of Service (CoS) for one or more Ethernet ports, do the following:
1. Navigate to Classes of Service» Configure Port CoS Parameters . The Port CoS Parameters table appears.