Quality of Service
Configuring QoS - General
483 Cisco 500 Series Stackable Managed Switch Administration Guide Release 1.3
25
Default Mapping for 8 Queues
By changing the CoS/802.1p to Queue mapping (CoS/802.1p to Queue) and the 
Queue schedule method and bandwidth allocation (Queue page), it is possible to 
achieve the desired quality of service in a network.
The CoS/802.1p to Queue mapping is applicable only if one of the following exists:
5 4  Voice - Cisco IP phone 
default
64 Interwork Control - LVS 
phone RTP
74 Network Control
802.1p 
Values
(0-7, 7 being 
the highest)
Queue
(4 queues 1-
4, 4 being the 
highest 
priority)
Notes
802.1p 
Values
(0-7, 7 being 
the highest)
Queue
(8 queues 1-
8, 8 is the 
highest 
priority) 
Standalone
7 Queues 
(8 is the highest 
priority used for 
stack control 
traffic) (stack)
Notes
0 1 1 Background
12 1 Best Effort
2 3 2 Excellent Effort
3 6 5 Critical Application - LVS 
phone SIP
45 4 Video
5 8 7 Voice - Cisco IP phone 
default
6 8 7 Interwork Control
LVS phone RTP
77 6 Network Control