[c-nsp] Nexus 3064 - wrong interface traffic statistics

[Mihai]

Hello,

  I have a NX3064 switch connected with a 10G trunk interface to a Cisco
7600.
Looking at the interface statistic on Nexus I see less traffic than on
C7600 which is the real traffic.
Does anyone have a clue about this issue (maybe a Nexus bug)?

dr#sh cdp ne ten2/2
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                   S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
gsd                 Ten 2/2           155          R S I     N3K-C3064
Eth 1/1

dr#sh int ten2/2
TenGigabitEthernet2/2 is up, line protocol is up (connected)
   Hardware is C7600 10Gb 802.3, address is 0021.d8ef.79c9 (bia
0021.d8ef.79c9)
   MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
      reliability 255/255, txload 138/255, rxload 121/255
   Encapsulation ARPA, loopback not set
   Keepalive set (10 sec)
   Full-duplex, 10Gb/s
   Transport mode LAN (10GBASE-R, 10.3125Gb/s)
   input flow-control is off, output flow-control is off
   ARP type: ARPA, ARP Timeout 04:00:00
   Last input 00:00:04, output 00:00:35, output hang never
   Last clearing of "show interface" counters 03:58:16
   Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
   Queueing strategy: fifo
   Output queue: 0/40 (size/max)
   30 second input rate 4761521000 bits/sec, 740934 packets/sec
   30 second output rate 5435524000 bits/sec, 797383 packets/sec
      7874763845 packets input, 6140247892966 bytes, 0 no buffer
      Received 3638389 broadcasts (741024 multicasts)
      0 runts, 0 giants, 0 throttles
      0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
      0 watchdog, 0 multicast, 0 pause input
      0 input packets with dribble condition detected
      8616067655 packets output, 7521180990882 bytes, 0 underruns
      0 output errors, 0 collisions, 0 interface resets
      0 unknown protocol drops
      0 babbles, 0 late collision, 0 deferred
      0 lost carrier, 0 no carrier, 0 pause output
      0 output buffer failures, 0 output buffers swapped out

gsd# sh int e1/1
Ethernet1/1 is up
  Dedicated Interface
   Hardware: 100/1000/10000 Ethernet, address: c08c.603d.88a8 (bia
c08c.603d.88a8)
   MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec
   reliability 255/255, txload 1/255, rxload 1/255
   Encapsulation ARPA
   Port mode is trunk
   full-duplex, 10 Gb/s, media type is 10G
   Beacon is turned off
   Input flow-control is off, output flow-control is off
   Rate mode is dedicated
   Switchport monitor is off
   EtherType is 0x8100
   Last link flapped 4d15h
   Last clearing of "show interface" counters 03:59:15
   0 interface resets
   30 seconds input rate 2656229008 bits/sec, 384425 packets/sec
   30 seconds output rate 2268222208 bits/sec, 358187 packets/sec
   Load-Interval #2: 5 minute (300 seconds)
     input rate 2.50 Gbps, 364.71 Kpps; output rate 2.13 Gbps, 336.23 Kpps
   RX
     2719964608 unicast packets  221300 multicast packets  114389
broadcast packets
     2720525098 input packets  2374833729498 bytes
     15635029 jumbo packets  0 storm suppression bytes
     0 runts  0 giants  0 CRC  0 no buffer
     0 input error  0 short frame  0 overrun   0 underrun  0 ignored
     0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop
     0 input with dribble  58084 input discard
     0 Rx pause
   TX
     2485528013 unicast packets  233844 multicast packets  909563
broadcast packets
     2486673007 output packets  1938333440775 bytes
     14794819 jumbo packets
     0 output errors  0 collision  0 deferred  0 late collision
     0 lost carrier  0 no carrier  0 babble 0 output discard
     0 Tx pause


Regards,
Mihai