HP 5500 Ei 5500 Si Switch Series Configuration Guide

 48 
SP+WFQ queuing 
SP+WFQ queuing is similar to SP+WRR queuing. You can assign some queues on a port to the SP 
scheduling group and the others to the WFQ scheduling group to implement SP + WFQ queue 
scheduling. The switch schedules packets of qu eues in the WFQ group based on their minimum 
guaranteed bandwidth settings, then uses SP queuing to schedule the queues in the SP scheduling group, 
and at last uses WFQ to schedule the queues in  the WFQ scheduling group in a round robin fashion 
according...

 49 
Configuring WRR queuing 
Configuration procedure 
To  c o n fig u re  W R R  qu e u i n g :   
Step Command Remarks 
1.  Enter system view. 
system-view N/A 
2.  Enter interface view or 
port group view. 
• Enter interface view: 
interface  interface-type 
interface-number 
•  Enter port group view: 
port-group manual 
port-group-name   Use either command. 
Settings in interface view take effect on 
the current interface. Settings in port 
group view take effect on all ports in 
the port group. 
3....

 50 
2.
 
Configuration procedures 
# Enter system view.  
 system-view 
# Configure WRR queuing on port GigabitEthernet 1/0/1.  
[Sysname] interface GigabitEthernet 1/0/1 
[Sysname-GigabitEthernet1/0/1] qos wrr byte-count 
[Sysname-GigabitEthernet1/0/1] qos wrr 0 group 1 byte-count 1 
[Sysname-GigabitEthernet1/0/1] qos wrr 1 group 1 byte-count 2 
[Sysname-GigabitEthernet1/0/1] qos wrr 2 group 1 byte-count 4 
[Sysname-GigabitEthernet1/0/1] qos wrr 3 group 1 byte-count 6 
[Sysname-GigabitEthernet1/0/1]...

 51 
Step Command Remarks 
2.  Enter interface view or 
port group view. 
• Enter interface view: 
interface  interface-type 
interface-number 
•  Enter port group view: 
port-group manual  port-group-name
 
Use either command. 
Settings in interface view take 
effect on the current interface. 
Settings in port group view take 
effect on all ports in the port group.
 
3.  Enable byte-count or 
packet-based WFQ 
queuing.   qos wfq [ byte-count
 | weight  ]  The default queuing algorithm on 
an interface...

 52 
Configuring SP+WRR queuing 
Configuration procedure 
To configure SP + WRR queuing:  
Step Command Remarks 
1.  Enter system view. 
system-view N/A 
2.  Enter interface view or port 
group view. 
• Enter interface view: 
interface 
interface-type  
interface-number 
•  Enter port group 
view: 
port-group manual 
port-group-name  Use either command. 
Settings in interface view take effect on the 
current interface. Settings in port group view 
take effect on all ports in the port group. 
3.
  Enable...

 53 
Configuration procedure 
# Enter system view.  
 system-view 
# Enable the SP+WRR queue scheduling algorithm on GigabitEthernet1/0/1.  
[Sysname] interface GigabitEthernet 1/0/1 
[Sysname-GigabitEthernet1/0/1] qos wrr weight 
[Sysname-GigabitEthernet1/0/1] qos wrr 0 group sp 
[Sysname-GigabitEthernet1/0/1] qos wrr 1 group sp 
[Sysname-GigabitEthernet1/0/1] qos wrr 2 group sp 
[Sysname-GigabitEthernet1/0/1] qos wrr 3 group sp 
[Sysname-GigabitEthernet1/0/1] qos wrr 4 group 1 weight 2...

 54 
Configuration example 
Network requirements 
•  Configure SP+WFQ queuing on GigabitEthernet  1/0/1, and use packet-based WFQ scheduling 
weights.  
•   Configure queue 0, queue 1, queue 2, and queue 3 on GigabitEthernet 1/0/1 to be in SP queue 
scheduling group.  
•   Configure queue 4, queue 5, queue 6, and queue 7 on GigabitEthernet 1/0/1 to use WFQ 
queuing, with the weight 2, 4, 6, and 8 and the minimum guaranteed bandwidth 128 kbps.  
Configuration procedure 
# Enter system view.  
 system-view...

 55 
Configuring congestion avoidance (available 
only on the 5500 EI) 
Both bridge mode (Layer 2) and route mode (Layer 3) Ethernet ports support the congestion avoidance 
function. The term  interface i n thi s  chapter  c ol le ctively refers  to  these  t ypes  of  por ts. You  c an use  the  port 
link-mode  command to set an Ethernet port to operate in bridge or route mode (see  Layer 2—LAN 
Switching Configuration Guide ). 
Overview 
Avoiding congestion before it occurs is a proactive approach to...

 56 
 NOTE: 
The Switch Series does not support the upper threshold configuration.  
 
Introduction to WRED configuration 
On the 5500 EI Switch Series, WRED is implemen ted with WRED tables. WRED tables are created 
globally in system view and then applied to interfaces. 
Before configuring WRED, determine the following parameters: 
•   Lower threshold —When the average queue length is below the lower threshold, no packet is 
dropped. When the average queue length exceeds the lower threshold, the switch...

 57 
Step Command Remarks 
4.  Enter interface view or 
port group view. 
• Enter interface view: 
interface  interface-type  
interface-number 
•  Enter port group view: 
port-group manual  port-group-name
 
Use either command. 
Settings in interface view take 
effect on the current interface. 
Settings in port group view take 
effect on all ports in the port group.
 
5.  Apply the WRED table 
to the interface or port 
group.   qos wred apply 
table-name N/A
 
 
Configuration examples 
Apply a WRED...