Siemens RUGGEDCOM ROX II User Manual page 759

RUGGEDCOM ROX II
CLI User Guide
A table or list similar to the following example appears:
ruggedcom# show qos statistics | tab
MIN
CLASSNAME BANDWIDTH
---------------------------------------------------------------------------------------------
High 1200Kbit
Default 300000bit
This table provides the following information:
Parameter
classname
min-bandwidth
max-bandwidth
sentbytes
sentpackets
droppedpackets
rate
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
Managing Classes of Service
MAX
BANDWIDTH SENTBYTES
1500Kbit 4956594
1500Kbit 3029832
Synopsis: A string
Synopsis: A string
The minimum guaranteed bandwidth. This is based on the device's defined characteristics.
Synopsis: A string
The maximum guaranteed bandwidth in absence of any higher prioritized traffic. This is
based on the device's defined characteristics.
Synopsis: A string
The number of bytes that were sent through this class.
Synopsis: A string
The number of packets that were sent through this class.
Synopsis: A string
The number of packets that were dropped in this class.
Synopsis: A string
Based on a 10-second average.
Synopsis: A string
Based on a 10-second average.
SENTPACKETS DROPPEDPACKETS
9953 0
6084 3869
Description
Traffic Control and Classification
RATE AVERAGE
446104bit 112pps
270088bit 68pps
Chapter 16
713