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

balakrishnansenthil · ‎01-08-2013

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

ogamanya · ‎01-08-2013

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

View solution in original post

Andras Dosztal · ‎01-09-2013

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

View solution in original post

Andras Dosztal · ‎01-08-2013

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 · ‎01-08-2013

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

ogamanya · ‎01-08-2013

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 · ‎01-08-2013

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# 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#

Andras Dosztal · ‎01-09-2013

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