Reference Guide

Brocade Fabric OS Command Reference 897
53-1004112-02
portStatsShow
stat_lc_rx
The number of link control frames received.
stat_mc_rx
The number of multicast frames received.
stat_mc_to
The number of multicast timeouts.
stat_mc_tx
The number of multicast frames transmitted.
tim_rdy_pri
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.
tim_txcrd_z
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.
tim_txcrd_z_vc
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).
tim_latency_vc
TxQ latency monitor statistics. Displayed only on 16 Gbps-capable platforms and not on 32
Gbps-capable platforms.
lat_tot_pkt_vc
Total TxQ latency monitor statistics. Displayed only on 32 Gbps-capable platforms.
lat_hi_time_vc
High TxQ latency monitor statistics. Displayed only on 32 Gbps-capable platforms.
lat_lo_time_vc
Low TxQ latency monitor statistics. Displayed only on 32 Gbps-capable platforms.
latency_dma_ts
TXQ latency DMA timeStamp. Displayed only on 32 Gbps-capable platforms.
fec_cor_detected
The number of errors corrected by FEC. Displayed only on 16 Gbps-capable platforms and
not on 32 Gbps-capable platforms.