Nexus interface traffic keep droping

[cisjay]

I have cisco Nexus 3172T Chassis Im having problem with the traffic going in and out the interface, please let me know what I missed.

Thank you in advance.

From the logging:

%ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/43 is down (Link failure)

%ETHPORT-5-SPEED: Interface Ethernet1/43, operational speed changed to 100 Mbps

%ETHPORT-5-IF_DUPLEX: Interface Ethernet1/43, operational duplex mode changed to Full

%ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/43, operational Receive Flow Control state changed to off

%ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/43, operational Transmit Flow Control state changed to off

%ETHPORT-5-IF_UP: Interface Ethernet1/43 is up in mode access

%ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/43 is down (Link failure)

%ETHPORT-5-SPEED: Interface Ethernet1/43, operational speed changed to 10 Gbps

%ETHPORT-5-IF_DUPLEX: Interface Ethernet1/43, operational duplex mode changed to Full

Interface show run configuration:

interface Ethernet1/43

switchport access vlan 40

spanning-tree port type edge

spanning-tree bpduguard enable

Interface information

Ethernet1/43 is up

admin state is up, Dedicated Interface

Hardware: 100/1000/10000 Ethernet, address: 0078.8814.4e45 (bia 0078.8814.4e45)

MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec

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

Encapsulation ARPA, medium is broadcast

Port mode is access

full-duplex, 10 Gb/s

Beacon is turned off

Auto-Negotiation is turned on

Input flow-control is off, output flow-control is off

Auto-mdix is turned off

Switchport monitor is off

EtherType is 0x8100

EEE (efficient-ethernet) : n/a

Last link flapped 09:11:35

Last clearing of "show interface" counters never

961 interface resets

30 seconds input rate 20208 bits/sec, 3 packets/sec

30 seconds output rate 28264 bits/sec, 5 packets/sec

Load-Interval #2: 5 minute (300 seconds)

input rate 49.93 Kbps, 4 pps; output rate 691.72 Kbps, 15 pps

RX

1213890029 unicast packets 945318 multicast packets 8386637 broadcast packets

1223221984 input packets 732465807627 bytes

0 jumbo packets 0 storm suppression packets

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 0 input discard

0 Rx pause

TX

1751860499 unicast packets 63472041 multicast packets 96024336 broadcast packets

1911356876 output packets 2338325830578 bytes

0 jumbo packets

0 output error 0 collision 0 deferred 0 late collision

0 lost carrier 0 no carrier 0 babble 0 output discard

0 Tx pause

[Rakesh Tiwari]

When putting command "no negotiate auto" on interface its showing error as "ERROR: Ethernet105/1/15: Configuration does not match the port capability." 

[MHM Cisco World]

OK, that lead us to right direction can I now the LC number ?

[Rakesh Tiwari]

Local contact number?

[MHM Cisco World]

I mean line Card number.

[Rakesh Tiwari]

We are running two nexus 5596UP with Nexus2k as fex fabric. We are getting these messages on almost all ports randomly.

[MHM Cisco World]

https://www.cisco.com/c/en/us/support/docs/field-notices/641/fn64178.html

check this link, I think it is bug.

[Rakesh Tiwari]

N2K product ID is "N2K-C2248TP-1GE" ,which is not included in affected product ID.

[123456789ali]

thanks really for this command it resolve my issue 

[123456789ali]

thanks

[Eduardo.recio]

if "no negotiate auto" doesn't work, try to set the MTU on both sides - some systems have different default values