cancel
Showing results forĀ 
Search instead forĀ 
Did you mean:Ā 
cancel
37116
Views
10
Helpful
24
Replies

Nexus interface traffic keep droping

cisjay
Level 1
Level 1
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
24 Replies 24

cofee
Level 5
Level 5

What do you have  connected to this port? It's possible that the device connected to it is triggering auto negotiation failures. I would suggest to hard code speed and duplex on the nexus port and the remote port. See if you still get the same error.

Hi Cofee

The device that is connected to the interface is a PC 10gigabit nic... 

I will try to hard coding the interface and see if that will solve it.

UPdate:

Hi So I hard coded the interface

I'm still seeing the package drops... the interface still flapping. but the renegotiation speed is not happening anymore. 

%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...
I can't anything wrong with the configuration... I am thinking it is the PC interface that causing the dropping. I will update you if I found out it is a PC interface... 
if you guys have any suggestion let me know.
Thank you

Did you hard code PC nic as well? if you haven't you would need to do that as well.

Still drop after hard-coding the PC- NIC.. they are both on 10GB and full for duplex... but still the result.... the port is down twice a day

Did you resolve the problem.pls help me also as facing same problem.

Reza Sharifi
Hall of Fame
Hall of Fame

It appears that you have issue with interface speed negotioantion.  Can you hard set the speed to be compatible to whatever device this interface is connected to (e.g speed 1000)?

HTH

Hi Reza.

The device that is connected to the interface is a PC 10gigabit nic... 

I will try to hard coding the interface and see if that will solve it.

UPdate:

Hi So I hard coded the interface

I'm still seeing the package drops... the interface still flapping. but the renegotiation speed is not happening anymore. 

%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...
I can't anything wrong with the configuration... I am thinking it is the PC interface that causing the dropping. I will update you if I found out it is a PC interface... 
if you guys have any suggestion let me know.
Thank you

cisjay
Level 1
Level 1

UPDATE:

So I did hard-coded both the switch port and PC nic to the same speed and duplex to full, and still not working....

I even change the switchport to another port and still a no go...

Any other ideas???

Thank you

Is it possible to change NIC or use another host that has a 10 gig port?that would rule out any issue with the remote NIC/host, since you have already tested the nexus side by using another port.

did you try replacing the patch cable ?

Hi Cisjay,

Did you solve the problem? I have faced the similar problem, Nexus vPC link keep droping the traffics.

Regards

Motiar

Rakesh Tiwari
Level 1
Level 1

Facing similar issue. pls suggest.

2022 Jul 18 15:37:36 N5K-SW-2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/27 is down (Link failure)
2022 Jul 18 15:37:39 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet106/1/27, operational speed changed to 1 Gbps
2022 Jul 18 15:37:39 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/27, operational duplex mode changed to Full
2022 Jul 18 15:37:39 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/27, operational Receive Flow Control state changed to off
2022 Jul 18 15:37:39 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/27, operational Transmit Flow Control state changed to on
2022 Jul 18 15:37:39 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet106/1/27 is up in mode access
2022 Jul 18 15:37:55 N5K-SW-2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet106/1/27 is down (Link failure)
2022 Jul 18 15:37:58 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet106/1/27, operational speed changed to 1 Gbps
2022 Jul 18 15:37:58 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet106/1/27, operational duplex mode changed to Full
2022 Jul 18 15:37:58 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet106/1/27, operational Receive Flow Control state changed to off
2022 Jul 18 15:37:58 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet106/1/27, operational Transmit Flow Control state changed to on
2022 Jul 18 15:37:58 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet106/1/27 is up in mode access
2022 Jul 18 15:38:17 N5K-SW-2 %VSHD-5-VSHD_SYSLOG_CONFIG_I: Configured from vty by admin on 172.16.5.180@pts/1
2022 Jul 18 15:38:35 N5K-SW-2 %VSHD-5-VSHD_SYSLOG_CONFIG_I: Configured from vty by on ppm.26516
2022 Jul 18 15:39:35 N5K-SW-2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet104/1/42 is down (Link failure)
2022 Jul 18 15:39:39 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet104/1/42, operational speed changed to 1 Gbps
2022 Jul 18 15:39:39 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet104/1/42, operational duplex mode changed to Full
2022 Jul 18 15:39:39 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Receive Flow Control state changed to off
2022 Jul 18 15:39:39 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Transmit Flow Control state changed to on
2022 Jul 18 15:39:39 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet104/1/42 is up in mode access
2022 Jul 18 15:40:14 N5K-SW-2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet104/1/42 is down (Link failure)
2022 Jul 18 15:40:17 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet104/1/42, operational speed changed to 1 Gbps
2022 Jul 18 15:40:17 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet104/1/42, operational duplex mode changed to Full
2022 Jul 18 15:40:17 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Receive Flow Control state changed to off
2022 Jul 18 15:40:17 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Transmit Flow Control state changed to on
2022 Jul 18 15:40:17 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet104/1/42 is up in mode access
2022 Jul 18 15:40:34 N5K-SW-2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet104/1/42 is down (Link failure)
2022 Jul 18 15:40:37 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet104/1/42, operational speed changed to 1 Gbps
2022 Jul 18 15:40:37 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet104/1/42, operational duplex mode changed to Full
2022 Jul 18 15:40:37 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Receive Flow Control state changed to off
2022 Jul 18 15:40:37 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Transmit Flow Control state changed to on
2022 Jul 18 15:40:37 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet104/1/42 is up in mode access
2022 Jul 18 15:42:22 N5K-SW-2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet104/1/42 is down (Link failure)
2022 Jul 18 15:42:26 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet104/1/42, operational speed changed to 1 Gbps
2022 Jul 18 15:42:26 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet104/1/42, operational duplex mode changed to Full
2022 Jul 18 15:42:26 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Receive Flow Control state changed to off
2022 Jul 18 15:42:26 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet104/1/42, operational Transmit Flow Control state changed to on
2022 Jul 18 15:42:26 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet104/1/42 is up in mode access
2022 Jul 18 15:44:42 N5K-SW-2 %LIBIFMGR-5-ALL_COUNTERS_CLEARED: All interface counters cleared by user
2022 Jul 18 15:46:15 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet105/1/15, operational speed changed to 1 Gbps
2022 Jul 18 15:46:15 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet105/1/15, operational duplex mode changed to Full
2022 Jul 18 15:46:15 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet105/1/15, operational Receive Flow Control state changed to off
2022 Jul 18 15:46:15 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet105/1/15, operational Transmit Flow Control state changed to on
2022 Jul 18 15:46:15 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet105/1/15 is up in mode access
2022 Jul 18 15:46:29 N5K-SW-2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet105/1/15 is down (Link failure)
2022 Jul 18 15:46:33 N5K-SW-2 %ETHPORT-5-SPEED: Interface Ethernet105/1/15, operational speed changed to 1 Gbps
2022 Jul 18 15:46:33 N5K-SW-2 %ETHPORT-5-IF_DUPLEX: Interface Ethernet105/1/15, operational duplex mode changed to Full
2022 Jul 18 15:46:33 N5K-SW-2 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet105/1/15, operational Receive Flow Control state changed to off
2022 Jul 18 15:46:33 N5K-SW-2 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet105/1/15, operational Transmit Flow Control state changed to on
2022 Jul 18 15:46:33 N5K-SW-2 %ETHPORT-5-IF_UP: Interface Ethernet105/1/15 is up in mode access

issue not solve by hard coded speed and duplex alone, you need to disable auto nego too to make PC-NSK connect.

Review Cisco Networking for a $25 gift card