HP 5500 Ei 5500 Si Switch Series Configuration Guide

 18 
QoS configuration approaches 
You can configure QoS in these approaches:  
•  MQC approach 
•   Non-MQC approach 
S

ome features support both approaches, but some support only one. 
MQC approach 
In modular QoS configuration (MQC) approach, you configure QoS service parameters by using QoS 
policies (see  Configuring a QoS policy )
 .  
Non-MQC approach 
In non-MQC approach, you configure QoS service par ameters without using a QoS policy. For example, 
you can use the line rate feature to set a...

 19 
Configuring a QoS policy 
Overview 
A QoS policy is a set of class-behavior associations and defines the shaping, policing, or other QoS 
actions to take on different classes of traffic.  
A class is a set of match criteria for identifying traffic and it uses the AND or OR operator: 
•   AND —A packet must match all the criteria to match the class. 
•   OR—A packet matches the class if it matches any of the criteria in the class. 
A traffic behavior defines a set of QoS actions to take on packets,...

 20 
Configuration restrictions and guidelines 
•  If a class that uses the AND operator has multiple  if-match acl , if-match acl ipv6 , if-match 
customer-vlan-id  or if-match  service-vlan-id clauses, a packet that matches any of the clauses 
matches the class. 
•   To successfully execute the traffic behavior associated with a traffic class that uses the AND operator, 
define only one  if-match clause for any of the following match criteria and input only one value for 
any of the following list...

 21 
Option  Description 
dscp  dscp-list   Matches DSCP values.  
The 
dscp-list argument is a list of up to eight DSCP values. A DSCP value can 
be a number from 0 to 63 or any keyword in  Table 9.
 
destination-mac mac-address   Matches a destination MAC address.
 
customer-dot1p 8021p-list Matches the 802.1p priority of the customer network.  
The 
8021p-list  argument is a list of up to eight 802.1p priority values. An 
802.1p priority ranges from 0 to 7. 
service-dot1p  8021p-list Matches the...

 22 
 
Defining a policy 
You associate a behavior with a class in a QoS policy to perform the actions defined in the behavior for 
the class of packets. 
Configuration restrictions and guidelines 
•   If an ACL is referenced by a QoS policy for defining traffic match criteria, packets matching the ACL 
are organized as a class and the behavior defined in the QoS policy applies to the class regardless 
of whether the action in the rule is  deny or permit .  
•   In a QoS policy with multiple...

 23 
You can modify classes, behaviors, and class-behavior associations in a QoS policy applied to an 
interface, VLAN, or inactive user profile, or globally. If a class references an ACL for traffic classification, 
you can delete or modify the ACL (such as add rules to, delete rules from, and modify rules of the ACL).  
If a QoS policy has been applied to an active user  profile, you cannot modify classes, behaviors, and 
class-behavior associations of the QoS policy, or delete the QoS policy....

 24 
Step Command  Remarks 
1.  Enter system view. 
system-view N/A 
2.  Enter user profile 
view.   user-profile
 profile-name  The configuration made in user profile view takes 
effect when the user profile is activated and the 
users of the user profile are online. 
For more information about user profiles, see 
Security Configuration Guide
. 
 
3.   Apply the QoS 
policy.   qos apply policy
 policy-name 
{  inbound  | outbound  }  Use the 
inbound  keyword to apply the QoS policy 
to the incoming...

 25 
Applying the QoS policy to the control plane 
A device provides the data plane and the control plane. 
•  The data plane has units responsible for receiving,  transmitting, and switching (forwarding) packets, 
such as various dedicated forwarding chips. They deliver super processing speeds and throughput. 
•   The control plane has processing units running most routing and switching protocols and 
responsible for protocol packet resolution and calculation, such as CPUs. Compared with data 
plane...

 26 
Task Command Remarks 
Display traffic class configuration. display traffic classifier
 user-defined  [ tcl-name ] [ | 
{  begin |  exclude | include  } regular-expression  ] Available in any 
view
 
Display traffic behavior 
configuration.
  display traffic behavior user-defined
 
[  behavior-name  ] [ | { begin  | exclude  | include } 
regular-expression  ]  Available in any 
view
 
Display user-defined QoS policy 
configuration.
  display qos policy
 user-defined  [ policy-name 
[ classifier...

 27 
Configuring priority mapping 
Both bridge mode (Layer 2) and route mode (Layer 3) Ethernet ports support the priority mapping 
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 ). 
The 5500 SI Switch Series does not support Layer 3 Ethernet ports.  
Overview 
When a packet enters a device,...