Cisco Catalyst 3750-X Command Reference

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Catalyst 3750-X and 3560-X Switch Command Reference
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Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
auto qos video
auto qos video
Use the auto qos video interface configuration command on the switch stack or on a standalone switch
to automatically configure quality of service (QoS) for video within a QoS domain. Use the no form of
this command to return to the default setting.
auto qos video {cts | ip-camera | media-player}
no auto qos video {cts | ip-camera | media-player}
Syntax Description
Defaults Auto-QoS video 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.
cts Identiy this port as connected to a Cisco TelePresence System and automatically
configure QoS for video.
ip-camera Identify this port as connected to a Cisco IP camera and automatically configure
QoS for video.
media-player Identify this port as connected to a CDP-capable Cisco digital media player and
automatically configure QoS for video.
Table 2-6 Traffic Types, Packet Labels, and Queues
VOIP Data
Traffic
VOIP Control
Traffic
Routing Protocol
Traffic
STP
1
BPDU
2
Traffic
1. STP = Spanning Tree Protocol
2. BPDU = bridge protocol data unit
Real-Time
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
53 6 73–
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 2-7 Auto-QoS Configuration for the Ingress Queues
Ingress Queue Queue Number CoS-to-Queue Map
Queue Weight
(Bandwidth)
Queue (Buffer)
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

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing