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interface errors accuracy question?

worto03

Hi,

When looking at an interface on NPM ver 10.2.2 I get the following Transmit Discards reported

However when I look at the interface details on the switch I see no errors as below?

GED-3130G-CA05#sho int gi2/0/23

GigabitEthernet2/0/23 is up, line protocol is up (connected)

Hardware is Gigabit Ethernet, address is f025.72f4.5897 (bia f025.72f4.5897)

Description: *** Member of PC 35 ***

MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive not set

Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP

input flow-control is off, output flow-control is unsupported

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:12, output 00:00:15, output hang never

Last clearing of "show interface" counters 02:34:39

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 1788000 bits/sec, 528 packets/sec

5 minute output rate 6417000 bits/sec, 832 packets/sec

5048634 packets input, 2322679789 bytes, 0 no buffer

Received 162340 broadcasts (123963 multicasts)

0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 watchdog, 123963 multicast, 0 pause input

0 input packets with dribble condition detected

8754274 packets output, 7679039407 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

GED-3130G-CA05#

Any ideas as to why I'm seeing errors in the graph?

thanks,

worto.

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rhugh

The counters were cleared 02:34:39 before you issued the "show interface" command. If the chart was showing a time period more than two and a half hours before you issued the command, you would probably not see that reflected in the response to your command.

worto03

Thanks for the answer but thats not it - I cleared the counters then waited for the probelm to show itself on the graph again, after 3 more blocks of errors showed up on the graph I did the show interface above. Here's a new one still showing the same issue but the graph is for the last hour and the counters havn't been cleared for 4 hours and 41mins.