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[Hardware troubleshooting] Use ethtool -p in Linux to locate the problem that the Intel 82599 NIC light is not on

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Problem Description

The client machine Settings multiple NIC. It is necessary to locate the correspondence and the System NIC device name (eth*) and the actual Interface. After executing ethtool -p, the Interface light of the Intel82599 chip NIC Mon off, while the same command can Successful locate the onboard Gigabit Interface.

Root cause

The Intel 82599 chip NIC does not support the use of ethtool -p to locate the network port in Linux.

solution

Use the "ethtool -t eth*" command to locate the corresponding 82599 NIC Interface. The Interface light will appear long, then flash, and Below go out, lasting a total of about 5 secs.
**Note: This command Yes Interface offline command, which will cause Network interruption. If the machine is already online and Auto unlock after business, do not use this command. **

Original Link

https://support.sangfor.com.cn/cases/list?product_id=156&type=1&category_id=22662&isOpen=true