Cisco 3560x-24p 参考指南
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Catalyst 3750-X and 3560-X Switch Command Reference
OL-21522-02
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
auto qos trust
auto qos trust
Use the auto qos trust interface configuration command on the switch stack or on a standalone switch
to automatically configure quality of service (QoS) for trusted interfaces within a QoS domain. Use the
no form of this command to return to the default setting.
to automatically configure quality of service (QoS) for trusted interfaces within a QoS domain. Use the
no form of this command to return to the default setting.
auto qos trust {cos | dscp}
no auto qos trust {cos | dscp}
Syntax Description
Defaults
Auto-QoS trust is disabled on the port.
When auto-QoS is enabled, it uses the ingress packet label to categorize traffic, to assign packet labels,
and to configure the ingress and egress queues.
and to configure the ingress and egress queues.
cos
Trust the CoS packet classification.
dscp
Trust the DSCP packet classification.
Table 2-3
Traffic Types, Packet Labels, and Queues
VOIP Data
Traffic
Traffic
VOIP Control
Traffic
Routing Protocol
Traffic
Traffic
STP
1
BPDU
2
Traffic
1.
STP = Spanning Tree Protocol
2.
BPDU = bridge protocol data unit
Real-Time
Video Traffic
Video Traffic
All Other Traffic
DSCP
3
3.
DSCP = Differentiated Services Code Point
46
24, 26
48
56
34
–
CoS
4
4.
CoS = class of service
5
3
6
7
3
–
CoS-to-ingress
queue map
queue map
4, 5 (queue 2)
0, 1, 2, 3, 6, 7(queue
1)
1)
CoS-to-egress
queue map
queue map
4, 5
(queue 1)
2, 3, 6, 7 (queue 2)
0 (queue 3)
2
(queue 3)
0, 1
(queue 4)
(queue 4)
Table 2-4
Auto-QoS Configuration for the Ingress Queues
Ingress Queue
Queue Number
CoS-to-Queue Map
Queue Weight
(Bandwidth)
(Bandwidth)
Queue (Buffer)
Size
Size
SRR
1
shared
1.
SRR = shaped round robin. Ingress queues support shared mode only.
1
0, 1, 2, 3 ,6, 7
70 percent
90 percent
Priority
2
4, 5
30 percent
10 percent