09-07-2007 01:09 AM - edited 03-03-2019 06:39 PM
Hello All,
I am seeing in my WAN Router connected to ISP the several reoccurance of the Error log as below:
Sep 6 15:32:00.166: %OSPF-4-CONFLICTING_LSAID: LSA origination prevented by existing LSA with same LSID but a different mask
Existing Type 5 LSA: LSID 135.248.255.255/16
New Destination: 135.248.255.255/32
Sep 6 15:33:53.562: %OSPF-4-CONFLICTING_LSAID: LSA origination prevented by existing LSA with same LSID but a different mask
Existing Type 5 LSA: LSID 135.248.255.255/16
New Destination: 135.248.255.255/32
Can anyone suggest what could be the resaon for this Error log and how to Avoid this ! !
Thanks in Advance for Helps
Best Regards,
Guru Prasad R
09-07-2007 07:55 AM
Hi,
%OSPF-4-CONFLICTING_LSAID : Found LSA with the same host bit set but using different mask \n Existing: LSA ID [int][inet] \n New: Destination [int][inet]
Explanation: An internal software error has occurred.
Recommended Action: Copy the error message exactly as it appears on the console or in the system log. Issue the show tech-support command to gather data that may provide information to determine the nature of the error. If you cannot determine the nature of the error from the error message text or from the show tech-support command output, call your Cisco technical support representative, and provide the representative with the gathered information.
Hope this helps
Raj
09-08-2007 01:06 AM
hello
please refer to http://www.ietf.org/rfc/rfc2328.txt page 235-237
this can happen if you redistribute into OSPF let say :
135.248.0.0/13 ==> LSAID 135.248.0.0
135.248.0.0/16 ==> to not conflict with first LSA, LSAID is set to 135.248.255.255
135.248.255.255/32 ==> BUG !!!
regards
Etienne
05-30-2018 09:31 PM
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