Siemens RUGGEDCOM ROX II User Manual

RUGGEDCOM ROX II
CLI User Guide
Chapter 16
Traffic Control and Classification
Managing Classes of Service 713
A table or list similar to the following example appears:
ruggedcom# show qos statistics | tab
MIN MAX
CLASSNAME BANDWIDTH BANDWIDTH SENTBYTES SENTPACKETS DROPPEDPACKETS RATE AVERAGE
---------------------------------------------------------------------------------------------
High 1200Kbit 1500Kbit 4956594 9953 0 446104bit 112pps
Default 300000bit 1500Kbit 3029832 6084 3869 270088bit 68pps
This table provides the following information:
Parameter Description
classname Synopsis:  A string
min-bandwidth Synopsis:  A string
The minimum guaranteed bandwidth. This is based on the device's defined characteristics.
max-bandwidth Synopsis:  A string
The maximum guaranteed bandwidth in absence of any higher prioritized traffic. This is
based on the device's defined characteristics.
sentbytes Synopsis:  A string
The number of bytes that were sent through this class.
sentpackets Synopsis:  A string
The number of packets that were sent through this class.
droppedpackets Synopsis:  A string
The number of packets that were dropped in this class.
rate Synopsis:  A string
Based on a 10-second average.
average Synopsis:  A string
Based on a 10-second average.
Section16.3
Managing Classes of Service
Classes of Service (CoS) provides the ability to expedite the transmission of certain frames and port traffic over
others. The CoS of a frame can be set to Normal, Medium, High or Critical. By default, RUGGEDCOM ROX II
enforces Normal CoS for all traffic.
IMPORTANT!
Use the highest supported CoS with caution, as it is always used by the switch for handling network
management traffic, such as RSTP BPDUs.
If this CoS is used for regular network traffic, upon traffic bursts, it may result in the loss of some
network management frames, which in turn may result in the loss of connectivity over the network.
The process of controlling traffic based on CoS occurs over two phases:
• Inspection Phase
In the inspection phase, the CoS priority of a received frame is determined from:
▫ A specific CoS based upon the source and destination MAC address (as set in the Static MAC Address Table)
▫ The priority field in 802.1Q tags

Siemens RUGGEDCOM ROX II Specifications

General

Brand	Siemens
Model	RUGGEDCOM ROX II
Category	Network Hardware
Language	English