Avaya 882 사용자 설명서

Document No. 10-300077, Issue 2

25-3

80-Series QoS

The QoS process starts at the point where a frame enters the switch and ends 
when the frame exits the switch. This section describes the QoS process 
from start to finish:

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The QoS process for ingress traffic involves the following steps: 

1.  Identifying the priority, also called class, of the frame or packet. The 

switch can identify the priority of the frame or packet by using one or 
more of the following criteria: 

The priority of the physical port that the switch received the 
frame or packet on 

Cisco ISL tag priority

802.1p tag priority (default)

The source or destination MAC address

The DiffServ code point

The IP protocol (assigned by means of an ACL rule)

The source or destination IP address (assigned by means of an 
ACL rule)

The source or destination TCP or UDP port (assigned by means 
of an ACL rule)

For more information on identifying the priority of traffic, see 
“

” later in this chapter.

2.  Storing the frame or packet in one of eight ingress queues. 

The switch stores the frame or packet in the queue that matches the 
priority that was identified in