I am receiving excessive input discards on a Gig copper port. Is this indication of a L1 problem always or could be something else. Here is a short output and additional info:
GigabitEthernet 1/48 is up, line protocol is up
Hardware is DellEMCEth,
...
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 1000 Mbit, Mode full duplex
Auto-mdix enabled, Flowcontrol rx off tx off
Energy Efficient Ethernet: No
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 13w6d3h
Queueing strategy: fifo
Input Statistics:
55572771941 packets, 40558807447029 bytes
....
0 CRC, 0 overrun, 633285855 discarded
MTU is verified and matches both sides (Jumbo disabled) √
S3048-ON is connected to an Extreme X450 switch on the other side
What plugs into this interface? What does the config for this interface look like? Anything recorded in the logs?#show logging.
Anything recorded in the logs?#show logging
Nothing that I can tie to this. This message is something I've seen on other switches that we have but I think it is no related: Aug 24 12:59:30 %S3048-ON:1 %KERN-6-INT: CP Mgmt port receiving excessive traffic; will be rate controlled
I don't see any errors or discards on the other side.
Currently during time of very low data traffic and discarded frames increase still:
#sh int gi1/48
GigabitEthernet 1/48 is up, line protocol is up
Hardware is DellEMCEth, address is 34:17:eb:3f:95:82
Current address is 34:17:eb:3f:95:82
Pluggable media not present
Interface index is 2103171
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :3417eb3f9582
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 1000 Mbit, Mode full duplex
Auto-mdix enabled, Flowcontrol rx off tx off
Energy Efficient Ethernet: No
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 14w2d1h
Queueing strategy: fifo
Input Statistics:
57083845120 packets, 41666506725973 bytes
386871 64-byte pkts, 20210102601 over 64-byte pkts, 9265465277 over 127-byte pkts
1709926332 over 255-byte pkts, 888389419 over 511-byte pkts, 25009574620 over 1023-byte pkts
Joro Petrov
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Posted August 24th, 2018 04:00
Dell EMC Application Software Version: 9.13(0.1P1)