switch# show interface fc1/21-22
fc1/21 is up
    Hardware is Fibre Channel, SFP is short wave laser w/o OFC (SN)
    Port WWN is 20:15:54:7f:ee:a8:31:c0
    Admin port mode is auto, trunk mode is off
    snmp link state traps are enabled
    Port mode is F, FCID is 0x7d0900
    Port vsan is 2
    Speed is 8 Gbps
    Rate mode is dedicated
    Transmit B2B Credit is 16
    Receive B2B Credit is 32
    Receive data field Size is 2112
    Beacon is turned off
    5 minutes input rate 0 bits/sec,0 bytes/sec, 0 frames/sec
    5 minutes output rate 8 bits/sec,1 bytes/sec, 0 frames/sec
      613 frames input,34780 bytes
        0 discards,0 errors
        0 invalid CRC/FCS,0 unknown class
        0 too long,0 too short
      615 frames output,83156 bytes
        0 discards,0 errors
      1 input OLS,1  LRR,1 NOS,0 loop inits
      2 output OLS,1 LRR, 1 NOS, 2 loop inits
      32 receive B2B credit remaining
      16 transmit B2B credit remaining
      16 low priority transmit B2B credit remaining
    Interface last changed at Tue Mar 11 01:56:30 2014

    Last clearing of "show interface" counters  :never

fc1/22 is up
    Hardware is Fibre Channel, SFP is short wave laser w/o OFC (SN)
    Port WWN is 20:16:54:7f:ee:a8:31:c0
    Admin port mode is auto, trunk mode is off
    snmp link state traps are enabled
    Port mode is F, FCID is 0x7d0a00
    Port vsan is 2
    Speed is 8 Gbps
    Rate mode is dedicated
    Transmit B2B Credit is 16
    Receive B2B Credit is 32
    Receive data field Size is 2112
    Beacon is turned off
    5 minutes input rate 0 bits/sec,0 bytes/sec, 0 frames/sec
    5 minutes output rate 8 bits/sec,1 bytes/sec, 0 frames/sec
      622 frames input,35608 bytes
        0 discards,0 errors
        0 invalid CRC/FCS,0 unknown class
        0 too long,0 too short
      624 frames output,84384 bytes
        0 discards,0 errors
      0 input OLS,0  LRR,0 NOS,0 loop inits
      2 output OLS,2 LRR, 1 NOS, 2 loop inits
      32 receive B2B credit remaining
      16 transmit B2B credit remaining
      16 low priority transmit B2B credit remaining
    Interface last changed at Tue Mar 11 01:56:21 2014

    Last clearing of "show interface" counters  :never