PRVG-12885 : ICMP packet of MTU size "65520" does not go through subnet
(Doc ID 2165823.1)
Last updated on MARCH 30, 2022
Applies to:
Oracle Database Cloud Schema Service - Version N/A and laterOracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
Installation fails with CVU error, from installActions2016-07-18_02-42-29PM.log:
INFO: Verification Result for Node:<hostname>
WARNING: Result values are not available for this verification task
INFO: Error Message:PRVG-12885 : ICMP packet of MTU size "65520" does not go through subnet "192.xxx.8.0". <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
The command executed was "/bin/ping 192.xxx.xx.22 -c 1 -w 3 -M do -s 65492 ". The output from the command was "PING 192.xxx.xx.22 (192.xxx.xx.22) 65492(65520) bytes of data.
From 192.xxx.xx.22 icmp_seq=1 Frag needed and DF set (mtu = 16436)
--- 192.xxx.xx.22 ping statistics ---
0 packets transmitted, 0 received, +1 errors
"
INFO: Cause: The network switch was not configured with jumbo frames or
INFO: Action: Ensure that the network switch is configured with jumbo frames
INFO: Error Message:PRVG-12884 : Maximum (MTU) size packet check failed on subnets "192.xxx.8.0"
INFO: Cause: The network switch was not configured with jumbo frames or the
INFO: Action: Ensure that the network switch is configured with jumbo frames
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |