Dell PowerEdge FX2 Dell PowerEdge FN I/O Aggregator Configuration Guide 9.6(0 - Page 36
QoS dot1p Traffic Classification and Queue Assignment, Enabling Auto-DCB-Enable Mode on Next Reload
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Lossless traffic is not guaranteed when it is transmitted on a PFC-enabled port and received on a linklevel flow control-enabled port, or transmitted on a link-level flow control-enabled port and received on a PFC-enabled port. Enabling DCB on Next Reload To configure the Aggregator so that all interfaces come up with DCB enabled and flow control disabled, use the dcb enable on-next-reload command. Internal PFC buffers are automatically configured. Task Globally enable DCB on all interfaces after next switch reload. Command dcb enable on-next-reload Command Mode CONFIGURATION To reconfigure the Aggregator so that all interfaces come up with DCB disabled and link-level flow control enabled, use the no dcb enable on-next-reload command. PFC buffer memory is automatically freed. Enabling Auto-DCB-Enable Mode on Next Reload To configure the Aggregator so that all interfaces come up in auto-DCB-enable mode with DCB disabled and flow control enabled, use the dcb enable aut-detect on-next-reload command. Task Command Command Mode Globally enable auto-detection of DCBx and auto-enabling of DCB on all interfaces after switch reload. dcb enable auto-detect on-nextreload CONFIGURATION Enabling DCB To configure the Aggregator so that all interfaces are DCB enabled and flow control disabled, use the dcb enable command. Disabling DCB To configure the Aggregator so that all interfaces are DCB disabled and flow control enabled, use the no dcb enable command. dcb enable auto-detect on-next-reload Command Example Dell#dcb enable auto-detect on-next-reload QoS dot1p Traffic Classification and Queue Assignment DCB supports PFC, ETS, and DCBx to handle converged Ethernet traffic that is assigned to an egress queue according to the following QoS methods: Honor dot1p Layer 2 class maps dot1p priorities in ingress traffic are used at the port or global switch level. dot1p priorities are used to classify traffic in a class map and apply a service policy to an ingress port to map traffic to egress queues. 36 Data Center Bridging (DCB)