ICP DAS USA FSM-510G series, User Manual, Page: 64 / 99

QoS Application Guide
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QoS Application Guide
Quality of Service (QoS) features allow you to allocate network resources to mission-critical applications
at the expense of applications that are less sensitive to such factors as time delays or network
congestion. You can configure your network to prioritize specific types of traffic, ensuring that each type
receives the appropriate Quality of Service (QoS) level.
SP/SPWRR/WRR
The FSM-510G can be configured to have 8 output Class of Service (CoS) queues (Q0~Q7) per port,
into which each packet is placed. Q0 is the highest priority Queue. Each packet’s 802.1p priority
determines its CoS queue. User needs to bind VLAN priority/queue mapping profile to each port, for
every VLAN priority need assign a traffic descriptor for it. The traffic descriptor defines the shapping
parameter on every VLAN priority for Ethernet interface. Currently FSM-510G supports Strict Priority
(SP)/SPWRR (SP+WRR)/WRR (Weighted Round Robin) scheduling methods on each port. Please find
the detail reference on FSM-510G user manual.
Default Priority and Queue mapping as below:
Priority0 Priority1 Priority2 Priority3 Priority4 Priority5 Priority6 Priority7
Queue0 Queue1 Queue2 Queue3 Queue4 Queue5 Queue6 Queue7
WRR WRR WRR WRR SPQ SPQ SPQ SPQ
Application Examples
Following we provide several examples for various QoS combinations and you can configure QoS using
the Web-based management system, CLI (Command Line Interface) or SNMP.