Dell Brocade G620 Brocade 8.0.1 Fabric OS Command Reference - Page 921

portStatsShow stat_lc_rx stat_mc_rx stat_mc_to stat_mc_tx tim_rdy_pri tim_txcrd_z tim_txcrd_z_vc tim_latency_vc lat_tot_pkt_vc lat_hi_time_vc lat_lo_time_vc latency_dma_ts fec_cor_detected The number of link control frames received. The number of multicast frames received. The number of multicast timeouts. The number of multicast frames transmitted. The number of times that sending R_RDY or VC_RDY primitive signals was a higher priority than sending frames, due to diminishing credit reserves in the transmitter at the other end of the fiber. This parameter is sampled at intervals of 1.8 microseconds, and the counter is incremented by 1 if the condition is true. The number of times that the port was unable to transmit frames because the transmit BB credit was zero. The purpose of this statistic is to detect congestion or a device affected by latency. This parameter is sampled at intervals of 2.5 microseconds, and the counter is incremented if the condition is true. Each sample represents 2.5 microseconds of time with zero Tx BB Credit. An increment of this counter means that the frames could not be sent to the attached device for 2.5 microseconds, indicating degraded performance. The number of times that the port was unable to transmit frames because the transmit BB credit was zero for each of the port's 16 Virtual Channels (VC 0-15). The purpose of this statistic is to detect congestion or a device affected by latency. This parameter is sampled at intervals of 2.5 microseconds (microseconds), and the counter is incremented if the condition is true. Each sample represents 2.5 microseconds of time with zero Tx BB Credit. An increment of this counter means that the frames could not be send to the attached device for 2.5 microseconds, indicating degraded performance (platform- and port-specific). TxQ latency monitor statistics. Displayed only on 16 Gbps-capable platforms and not on 32 Gbps-capable platforms. Total TxQ latency monitor statistics. Displayed only on 32 Gbps-capable platforms. High TxQ latency monitor statistics. Displayed only on 32 Gbps-capable platforms. Low TxQ latency monitor statistics. Displayed only on 32 Gbps-capable platforms. TXQ latency DMA timeStamp. Displayed only on 32 Gbps-capable platforms. The number of errors corrected by FEC. Displayed only on 16 Gbps-capable platforms and not on 32 Gbps-capable platforms. Brocade Fabric OS Command Reference 897 53-1004112-02