Dell Force10 S4820T FTOS Command Reference Guide - Page 469

Command History Version 8.3.19.0 Version 8.3.12.0 Version 8.3.16.0 Introduced on the S4820T Introduced on the S4810. Introduced on MXL 10/40GbE Switch IO Module Related Commands dcb-policy input Apply the input policy with the PFC configuration to an ingress interface. Usage By default, iSCSI is enabled on the unit and flowcontrol is enabled on all of the interfaces or if Information link-level flow control is enabled on one or more interfaces. To enable DCB, do one of the following: • Apply the dcb-input policy command with the command no pfc-mode on to all the interfaces. • Disable flow-control on all of the interfaces. dcb-input Create a DCB input policy to apply pause or flow control for specified priorities using a configure delay time. Syntax dcb-input policy-name To delete the DCB input policy, use the no dcb-input command. Parameters policy-name Maximum: 32 alphanumeric characters. Defaults none Command Modes CONFIGURATION Command History Version 8.3.19.0 Version 8.3.12.0 Version 8.3.16.0 Introduced on the S4820T. Introduced on the S4810. Introduced on MXL 10/40GbE Switch IO Module Usage Information As soon as you apply a DCB policy with PFC enabled on an interface, DCBX starts exchanging information with PFC-enabled peers. The IEEE802.1Qbb, CEE, and CIN versions of PFC TLV are supported. DCBX also validates PFC configurations received in TLVs from peer devices. By applying a DCB input policy with PFC enabled, you enable PFC operation on ingress port traffic. To achieve complete lossless handling of traffic, you must also enable PFC on all DCB egress ports or configure the dot1p priority-queue assignment of PFC priorities to lossless queues (refer to pfc no-drop queues). To remove a DCB input policy, including the PFC configuration it contains, enter the no dcb-input policy-name command in interface configuration mode. Related Commands dcb-policy input Apply the input policy with the PFC configuration. Data Center Bridging | 469