Ospf checksum error

[parthiban chinnaya]

                   I am seeing the following error in Nexus 7000.

%OSPF-4-CKSM_ERR:  ospf-2 [3482] (default) Bad OSPF checksum in packet ffff computed 0 from 10.20.100.2 on Ethernet1/6

%OSPF-4-CKSM_ERR:  ospf-2 [3482] (default) Bad OSPF checksum in packet ffff computed 0 from 10.20.0.10 on Ethernet1/5

The far end switch is a third party vendor.

what does this error mean.

[Bilal Nawaz]

Hello,

Error Message OSPF-4-CKSM_ERR Format: Bad OSPF checksum in packet %hx computed %hx
from %s on %s

Explanation A OSPF packet with invalid checksum was received
Parameters: Checksum value, Checksum value, Source IP address, Interface name

http://www.cisco.com/en/US/docs/switches/datacenter/sw/system_messages/reference/sl_7Krouting.html#wp1354080

Hope this helps

Sent from Cisco Technical Support iPhone App

[InayathUlla Sharieff]

Hi Parthiban,

Error Message     OSPF-4-CKSM_ERR Format: Bad OSPF checksum in packet %hx computed %hx

from %s on %s

Explanation    A OSPF packet with invalid checksum was received

Parameters: Checksum value, Checksum value, Source IP address, Interface name ...

Recommended Action    No action is required.

The %OSPF-4- CKSM_ERR: error message indicates that an Open Shortest Path

First (OSPF) router has received an invalid OSPF packet. The cause of the

error is included in the error message itself.

*       A device between the neighbors, such as a switch, is corrupting

the packet.

*       The sending router's packet is invalid. In this case, either the

sending router's interface is bad, or the error is caused by a software

bug.

*       The receiving router is calculating the wrong checksum. In this

case, either the receiving router's interface is bad, or the error is

caused

by a software bug. This is the least likely cause of this error message.

HTH

Regards

Inayath

*Plz rate all usefull posts.