Quality of Service
Configuring QoS - General
311
Cisco Small Business 200 Series Smart Switch Administration Guide
20
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.
CoS/802.1p to Queue mapping is applicable only if CoS/802.1p is the trusted
mode and the packets belong to flows that are CoS trusted.
Queue 1 has the lowest priority, queue 4 or 8 has the highest priority.
To map CoS values to egress queues:
STEP 1
Click
Quality of Service
>
General
>
CoS/802.1p to Queue
.
STEP 2
Enter the parameters.
•
802.1p
—Displays the 802.1p priority tag values to be assigned to an egress
queue, where 0 is the lowest and 7 is the highest priority.
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
1
2
1
Best Effort
2
3
2
Excellent Effort
3
6
5
Critical Application - LVS
phone SIP
4
5
4
Video
5
8
7
Voice - Cisco IP phone
default
6
8
7
Interwork Control
LVS phone RTP
7
7
6
Network Control