!!!!!Error Logs on Nexus 7K (7018)

Answered Question
Jan 8th, 2013

Hi Team,

We are getting some repeated error logs like below.

Please help us resolve this issue, is it any major error?????

2013 Jan  8 22:26:56 NOSCPXX-NX7K001 %ARP-3-DUP_VADDR_SRC_IP:  arp [4234]  Source address of packet received from 0050.5697.01

8f on Vlan1700(port-channel1) is duplicate of local virtual ip, 10.155.1.253

2013 Jan  8 22:27:31 NOSCPXX-NX7K001 last message repeated 3 times

2013 Jan  8 22:28:59 NOSCPXX-NX7K001 last message repeated 1 time

2013 Jan  8 22:30:21 NOSCPXX-NX7K001 last message repeated 6 times

By

Senthil

I have this problem too.
0 votes
Correct Answer by Andras Dosztal about 1 year 3 months ago

Yes, you're right. Change the server's address to something else.

Correct Answer by ogamanya@storte... about 1 year 3 months ago

The MAC belongs to a VM (0050.). So there is a VM on the network which has been assigned same IP as your box. You can trace the MAC address to the switch port it is connected

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Average Rating: 4.7 (3 ratings)
Andras Dosztal Tue, 01/08/2013 - 21:16

Station 0050.5697.018f (in VLAN 1700, connecting to Po1) is using the same IP address (10.155.1.253) that you set on your 7k.

balakrishnansenthil Tue, 01/08/2013 - 21:31

Hi ,

The Po1 is going to hsrp to other 7k002 for redundancy....

NX7K001# sh run int po1

!Command: show running-config interface port-channel1

!Time: Wed Jan  9 13:28:42 2013

version 5.2(1)

interface port-channel1

  description VPC Peer link to NX7K02

  switchport

  switchport mode trunk

  switchport trunk allowed vlan 1-699,999-4094

  spanning-tree port type network

  vpc peer-link

Correct Answer
ogamanya@storte... Tue, 01/08/2013 - 22:00

The MAC belongs to a VM (0050.). So there is a VM on the network which has been assigned same IP as your box. You can trace the MAC address to the switch port it is connected

balakrishnansenthil Tue, 01/08/2013 - 23:45

Thanks for update

As per below logs the MAC address is located in one of the Nexus 1000v.

You mean  the server "VWSIDSG" assigned same IP as : 10.155.1.253, am i right?

N1KVSM1#  sh mac address-table | i 0050.5697.018f

1700      0050.5697.018f    static  0         Veth72                         3

1700      0050.5697.018f    dynamic 66        Po2                            4

1700      0050.5697.018f    dynamic 248       Po1                            5

N1KVSM1#

N1KVSM1#

N1KVSM1# sh run int Veth7

!Command: show running-config interface Vethernet72

!Time: Wed Jan  9 15:40:27 2013

version 4.2(1)SV1(4a)

interface Vethernet7

  inherit port-profile SG_Int_DEV_App-1700

  description VWSIDSG, Network Adapter 1

  vmware dvport 1482 dvswitch uuid "75 eb 17 50 81 f5 c7 5a-ce da cb 27 d0 7d db ab"

  vmware vm mac 0050.5697.018F

N1KVSM1#

Correct Answer
Andras Dosztal Wed, 01/09/2013 - 00:38

Yes, you're right. Change the server's address to something else.

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Posted January 8, 2013 at 7:06 PM
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