Cisco 350 Series Administration Guide

Quality of Service
General
420 Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
23
CoS/802.1p to a Queue
The CoS/802.1p to Queue page maps 802.1p priorities to egress queues. The CoS/802.1p to
Queue Table determines the egress queues of the incoming packets based on the 802.1p
priority in their VLAN Tags. For incoming untagged packets, the 802.1p priority is the default
CoS/802.1p priority assigned to the ingress ports.
The following table describes the default mapping when there are 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:
• The device is in QoS Basic mode and CoS/802.1p trusted mode
• The device is in QoS Advanced mode and the packets belong to flows that are CoS/
802.1p trusted
802.1p Values
(0-7, 7 being the
highest)
Queue
(8 queues 1-8, 8
is the highest
priority)
7 Queues
(8 is the highest
priority used for
stack control traffic)
Stack
Notes
011 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

Cisco 350 Series Specifications

General

Model	Cisco 350 Series
Category	Switch
Ports	8, 24, 48
PoE	Available on some models
Layer	Layer 2
Switching Capacity	Up to 104 Gbps
VLAN Support	Yes (up to 256 VLANs)
QoS	Yes
Management	Web, CLI, SNMP
Security Features	ACLs, 802.1X, Port Security
Jumbo Frame Support	Yes
Power Supply	Internal
Dimensions	Varies by model
Weight	Varies by model
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-20°C to 70°C (-4°F to 158°F)
Humidity	10% to 90% non-condensing
Port Type	Gigabit Ethernet, Fast Ethernet (depending on model)