Brocade SAN Health Community

Buffer credits on unused port

  • 1.  Buffer credits on unused port

    Posted 10-24-2019 11:33 AM
    DCX8510.  How can a port with nothing connected be logging Credit buffer zeros?
    porterrshow -i 1
    frames enc crc crc too too bad enc disc link loss loss frjt fbsy c3timeout pcs
    tx rx in err g_eof shrt long eof out c3 fail sync sig tx rx err
    1: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

    portstatsshow -i 1
    port: 1
    =========
    stat_wtx 0 4-byte words transmitted
    stat_wrx 0 4-byte words received
    stat_ftx 0 Frames transmitted
    stat_frx 0 Frames received
    stat_c2_frx 0 Class 2 frames received
    stat_c3_frx 0 Class 3 frames received
    stat_lc_rx 0 Link control frames received
    stat_mc_rx 0 Multicast frames received
    stat_mc_to 0 Multicast timeouts
    stat_mc_tx 0 Multicast frames transmitted
    tim_rdy_pri 0 Time R_RDY high priority
    tim_txcrd_z 66227817 Time TX Credit Zero (2.5Us ticks)
    tim_txcrd_z_vc 0- 3: 0 0 0 66227817
    tim_txcrd_z_vc 4- 7: 0 0 0 0
    tim_txcrd_z_vc 8-11: 0 0 0 0
    tim_txcrd_z_vc 12-15: 0 0 0 0
    tim_latency_vc 0- 3: 1 1 1 1
    tim_latency_vc 4- 7: 1 1 1 1
    tim_latency_vc 8-11: 1 1 1 1
    tim_latency_vc 12-15: 1 1 1 1
    fec_cor_detected 0 Count of blocks that were corrected by FEC
    fec_uncor_detected 0 Count of blocks that were left uncorrected by FEC
    er_enc_in 0 Encoding errors inside of frames
    er_crc 0 Frames with CRC errors
    er_trunc 0 Frames shorter than minimum
    er_toolong 0 Frames longer than maximum
    er_bad_eof 0 Frames with bad end-of-frame
    er_enc_out 0 Encoding error outside of frames
    er_bad_os 0 Invalid ordered set
    er_pcs_blk 0 PCS block errors
    er_rx_c3_timeout 0 Class 3 receive frames discarded due to timeout
    er_tx_c3_timeout 0 Class 3 transmit frames discarded due to timeout
    er_unroutable 0 Frames that are unroutable
    er_unreachable 0 Frames with unreachable destination
    er_other_discard 0 Other discards
    er_type1_miss 0 frames with FTB type 1 miss
    er_type2_miss 0 frames with FTB type 2 miss
    er_type6_miss 0 frames with FTB type 6 miss
    er_zone_miss 0 frames with hard zoning miss
    er_lun_zone_miss 0 frames with LUN zoning miss
    er_crc_good_eof 0 Crc error with good eof
    er_inv_arb 0 Invalid ARB
    er_single_credit_loss 0 Single vcrdy/frame loss on link
    er_multi_credit_loss 0 Multiple vcrdy/frame loss on link
    phy_stats_clear_ts 10-20-2019 EDT Sun 15:25:29 Timestamp of phy_port stats clear
    lgc_stats_clear_ts 10-20-2019 EDT Sun 15:25:29 Timestamp of lgc_port stats clear