Cisco Cisco WAP131 Wireless-N Dual Radio Access Point with PoE 관리 매뉴얼

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Quality of Service
Class Map
Cisco WAP131 and WAP351 Administration Guide
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STEP  7
Click Save. The changes are saved to the Startup Configuration.
Class Map
The QoS feature contains Differentiated Services (DiffServ) support that allows 
traffic to be classified into streams and given a certain QoS treatment in 
accordance with defined per-hop behaviors.
Standard IP-based networks are designed to provide best-effort data delivery 
service. Best-effort service implies that the network delivers the data in a timely 
fashion, although there is no guarantee that it will. During times of congestion, 
packets may be delayed, sent sporadically, or dropped. For typical Internet 
applications, such as email and file transfer, a slight degradation in service is 
acceptable and in many cases unnoticeable. However, on applications with strict 
timing requirements, such as voice or multimedia, any degradation of service has 
undesirable effects.
A DiffServ configuration begins with defining class maps, which classify traffic 
according to their IP protocol and other criteria. Each class map can then be 
associated with a policy map, which defines how to handle the traffic class. 
Classes that include time-sensitive traffic can be assigned to policy maps that 
give precedence over other traffic.
You can use the Class Map page to define the classes of traffic, and use the 
 page to define the policies and associate the class maps to them.
Configuring an IPv4 Class Map
To add and configure an IPv4 class map:
STEP 1
Select Quality of Service > Class Map.
STEP  2
In the Class Map Name field, enter the name for the new class map. The name can 
contain from 1 to 31 alphanumeric and special characters. Spaces are not 
allowed.
STEP  3
Choose IPv4 as the type of class map from the Class Map Type list. The IPv4 
class map applies only to IPv4 traffic on the WAP device.
STEP  4
In the Match Criteria Configuration area, configure these parameters to match 
the packets to a class: