Dell S6000 FTOS 9.0(2.0) Command Line Reference Guide for the System - Page 733

35 Quality of Service (QoS) Overview FTOS commands for Quality of Service (QoS) include traffic conditioning and congestion control. QoS commands are not universally supported on all Dell Networking Products. This chapter contains the following sections: • Global Configuration Commands • Per-Port QoS Commands • Policy-Based QoS Commands The symbols s z under command headings indicate which Dell Networking - S6000 , S-Series or Z-Series, respectively - support the command. Global Configuration Commands • qos-rate-adjust • service-class bandwidth-percentage • service-class dot1p-mapping • show qos dot1p-queue-mapping • strict-priority queue qos-rate-adjust z S6000 By default, while rate limiting, policing, and shaping, FTOS does not include the Preamble, SFD, or the IFG fields. These fields are overhead; only the fields from MAC Destination Address to the CRC are used for forwarding and are included in these rate metering calculations. You can optionally include overhead fields in rate metering calculations by enabling QoS Rate Adjustment. Syntax qos-rate-adjustment overhead-bytes Parameters overhead-bytes Include a specified number of bytes of packet overhead to include in rate limiting, policing, and shaping calculations. S-Series Range: 1 to 31 Range: 1 to 144 Defaults QoS Rate Adjustment is disabled by default. Quality of Service (QoS) | 733