Quality of Service

In this section:

1. Quality of Service Overview
   Quality of Service (QoS) provides preferential treatment to specific traffic.
2. QoS for RUCKUS ICX stackable devices
   RUCKUS FastIron units in a traditional stack support QoS.
3. QoS Queues
   RUCKUS devices support the eight QoS queues (qosp0 through qosp7).
4. QoS Priorities-to-Traffic Assignment
   By default, all traffic is in the best-effort queue (qosp0) and is honored on tagged ports on all FastIron switches.
5. QoS Marking
   The term—QoS marking—is the process of initially changing the packet QoS information for the next hop.
6. DSCP Remarking Overview
   Differentiated Services Code Point (DSCP) remarking can be configured using three main types of configuration with different levels of QoS precedence.
7. DSCP-based QoS Configuration
   RUCKUSFastIron releases support basic DSCP-based QoS (also called Type of Service [ToS]-based QoS). However, the FastIron family of switches does not support other advanced DSCP-based QoS features.
8. QoS Mapping Configuration
9. QoS Scheduling and Queuing Methods
   Scheduling is the process of mapping a packet to an internal forwarding queue based on its QoS information and servicing the queues according to a queuing method.
10. IPv6 QoS
    QoS features supported for IPv6 environments include packet classification, queueing, traffic shaping, packet marking, and policing of IPv6 packets. These features are available for all FastIron products. The feature set is identical to that in IPv4.
11. Flow Control and Buffer Management
    Using flow control and buffer management techniques, data packet transmission rates and buffer queue capacity can be managed to provide the preferred quality of service (QoS).
12. Packet Buffer Management
13. Configuring QoS