3com DUA1750-2BAA01 Manual De Usuario

3Com Switch 8800 Configuration Guide 

Chapter 33  QoS Configuration

 

33-5 

Another merit for WRR algorithm: Though the queues are scheduled by turn, they are 

not configured with fixed time quantum. If a queue has no packets, the system 

immediately schedules the next queue. Then bandwidth resources can be fully utilized.  

Traffic mirroring duplicates specified packets to CPU for network test and 

troubleshooting.  

Port mirroring duplicates all packets at a specified port to the monitoring port for 

network test and troubleshooting.  

The system can make traffic statistics based on flow for further analysis. 

To configure QACL for a port group on the Switch 8800, you only need to create a port 

group and configure QACL for the group. Then the configuration becomes valid for all 

members in the group. This group-based QACL configuration saves you from 

configuring QACL for individual ports. After this configuration, the QACL configuration 

of each member port remains consistent forever.  

The following table describes the group-based QoS configuration tasks. (Suppose the 

flow template and ACL are defined already.)  

Table 33-1 Group-based QoS Configuration tasks 

Enter system view  system-view 

— 

Enter port group 
view 

port-group index 

Required. 

index: group number. For a 
common interface board, it 
ranges from 1 to 128. 

Add ports to the 
port group 

port interface_list  

Required. 

interface_list 

= 

{ interface_type interface_num 
|  interface_name } [ to 
{ interface_type interface_num 
| interface_name } ] &<1-n>.