Troubleshooting
Problem
The appliance is generating millions of CRC and input errors.
Cause
Interface is configured as half duplex
Diagnosing The Problem
Run the command: ethtool ethN
Where N is the ethernet interface associated with the appliance IP.
Check if the ethernet interface is running half duplex.
Resolving The Problem
Before you begin:
- It is recommended to run these commands through the IMM or DRAC console as you may loose connectivity to the machine for a few minutes while speeds are reset.
- The issue may be a switch speed setting is not on Auto Negotiating. You may also want to hard set the switch to 1000 Mb/s Full Duplex. If this is the case contact your network administrator.
Force the speed of the interface using the "
ETHTOOL_OPTS" setting in the file /etc/sysconfig/network-scripts/ifcfg-ethNExample:
vi /etc/sysconfig/network-scripts/ifcfg-eth0Append the line as follows to disable Auto-Negotiation, enable Full Duplex and set up Speed to 1000 Mb/s :
ETHTOOL_OPTS="autoneg off duplex full speed 1000"Where do you find more information?
Related Information
[{"Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Component":"Integrations - IBM","Platform":[{"code":"PF016","label":"Linux"}],"Version":"7.1;7.2","Edition":"All Editions","Line of Business":{"code":"LOB24","label":"Security Software"}}]
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Document Information
Modified date:
16 June 2018
UID
swg21678799