Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 836
C-Series and S-Series, E-Series, ip-dscp, mac-dot1p
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www.dell.com | support.dell.com Command History Version 8.3.5.0 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.1.1.1 Introduced on S55 Introduced on S-Series Introduced on C-Series Introduced on E-Series Usage There are eight (8) queues per interface on the E-Series and four (4) queues per interface on the Information C-Series and S-Series. This command assigns a class map or QoS policy to different queues. Related Commands class-map service-policy input service-policy output Identify the class map. Apply an input policy map to the selected interface. Apply an output policy map to the selected interface. set c e s Mark outgoing traffic with a Differentiated Service Code Point (DSCP) or dot1p value. Syntax Parameters set {ip-dscp value | mac-dot1p value} ip-dscp value mac-dot1p value (OPTIONAL) Enter the keyword ip-dscp followed by the IP DSCP value. Range: 0 to 63 Enter the keyword mac-dot1p followed by the dot1p value. Range: 0 to 7 On the C-Series and S-Series allowed values are:0,2,4,6 Defaults No default behavior or values Command Modes CONFIGURATION (conf-qos-policy-in) Command History Version 8.3.5.0 Version 8.2.1.0 Version 7.6.1.0 Version 7.5.1.0 Version 7.4.1.0 pre-Version 6.1.1.1 Introduced on S55 mac-dot1p available on the C-Series and S-Series Introduced on S-Series Introduced on C-Series E-Series Only: Expanded to add support for mac-dot1p Introduced on E-Series Usage Information C-Series and S-Series Once the IP DSCP bit is set, other QoS services can then operate on the bit settings. E-Series Once the IP DSCP bit is set, other QoS services can then operate on the bit settings. WRED (Weighted Random Early Detection) ensures that high-precedence traffic has lower loss rates than other traffic during times of congestion. 836 | Quality of Service (QoS)