37-23
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-13270-06
Chapter 37 Configuring QoS
Configuring Auto-QoS
The switch configures ingress and egress queues on the port according to the settings in
Table 37-3
and
Table 37-4
.
For information about the trusted boundary feature, see the
“Configuring a Trusted Boundary to
Ensure Port Security” section on page 39-42
.
When you enable auto-QoS by using the
auto qos voip cisco-phone
, the
auto qos voip cisco-softphone
,
or the
auto qos voip trust
interface configuration command, the switch automatically generates a QoS
configuration based on the traffic type and ingress packet label and applies the commands listed in
Table 37-5
to the port.
Table 37-2
Traffic Types, Packet Labels, and Queues
VoIP
1
Data
Traffic
1.
VoIP = voice over IP
VoIP Control
Traffic
Routing Protocol
Traffic
STP BPDU
Traffic
Real-Time
Video Traffic
All Other Traffic
DSCP
46
24, 26
48
56
34
–
CoS
5
3
6
7
3
–
CoS-to-Ingress
Queue Map
4, 5 (queue 2)
0, 1, 2, 3, 6, 7(queue 1)
CoS-to-Egress
Queue Map
4, 5
(queue 1)
2, 3, 6, 7 (queue 2)
0 (queue 3)
2 (queue 3)
0, 1
(queue 4)
Table 37-3
Auto-QoS Configuration for the Ingress Queues
Ingress Queue
Queue Number
CoS-to-Queue Map
Queue Weight
(Bandwidth)
Queue (Buffer)
Size
SRR shared
1
0, 1, 2, 3, 6, 7
70 percent
90 percent
Priority
2
4, 5
30 percent
10 percent
Table 37-4
Auto-QoS Configuration for the Egress Queues
Egress Queue
Queue Number
CoS-to-Queue Map
Queue Weight
(Bandwidth)
Queue (Buffer) Size
for Gigabit-Capable
Ports
Queue (Buffer)
Size for 10/100
Ethernet Ports
Priority
1
4, 5
up to100 percent
25 percent
15 percent
SRR shared
2
2, 3, 6, 7
10 percent
25 percent
25 percent
SRR shared
3
0
60 percent
25 percent
40 percent
SRR shared
4
1
20 percent
25 percent
20 percent
