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New Member

3750 gig int not show any input

I have a 3750 running 12.2.52 and all the gigabit interfaces that have

the GLC-GE-100FX  SFP modules inserted never show any traffic stats

the 5min input and output rate is always zero, but everything works fine

and I can poll traffic via SNMP. So aren't the stats displayed on the interface.

GigabitEthernet1/0/7 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 0018.b99f.8e87 (bia 0018.b99f.8e87)
  Description: THE HILL
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 0/255
  Encapsulation ARPA, loopback not set
  Keepalive not set
Full-duplex, 100Mb/s, media type is 100BaseFX SFP
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:45, output 00:00:48, output hang never
  Last clearing of "show interface" counters 6d09h
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec

     692267731 packets input, 718142674147 bytes, 0 no buffer
     Received 254450 broadcasts (245598 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 245598 multicast, 0 pause input
     0 input packets with dribble condition detected
     534842758 packets output, 280435048496 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     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

4 REPLIES
Hall of Fame Super Gold

Re: 3750 gig int not show any input

Try this:

GigabitEthernet1/0/7
   load-interval 30

This will allow you to view at 30 seconds interval.  Take note that this can jack up the "cost" of your CPU.

New Member

Re: 3750 gig int not show any input

No luck, even though the snmp shows  utilization

nothing appears on the switch counters:

GigabitEthernet1/0/7 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 0018.b99f.8e87 (bia 0018.b99f.8e87)
  Description: Tower Hill
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 0/255
  Encapsulation ARPA, loopback not set
  Keepalive not set
  Full-duplex, 100Mb/s, media type is 100BaseFX SFP
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:03, output 00:00:07, output hang never
  Last clearing of "show interface" counters 6d20h
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
30 second input rate 0 bits/sec, 0 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec

     712530526 packets input, 727218143348 bytes, 0 no buffer
     Received 270281 broadcasts (260841 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 260841 multicast, 0 pause input
     0 input packets with dribble condition detected
     555160224 packets output, 286860291796 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     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

Hall of Fame Super Gold

Re: 3750 gig int not show any input

Try copy large files back and forth.  If you really want per second statistics, try using 3rd party softwares like SolarWinds software.

New Member

Re: 3750 gig int not show any input

That is not the issue, the interface is not showing any stats

regardless of how much data is sent over the line, the counters always register zero

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