我看到(RHEL)节点出现网络问题(数据包丢失),这似乎也表现为ifconfig输出中’error’和’frame’字段的非零计数:
eth2 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx ... RX packets:277593775 errors:1049 dropped:0 overruns:0 frame:536
在某处有详细描述’错误’和’框架’的确切含义是什么?
编辑:ethtool eth2的输出:
Settings for eth2: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: umbg Wake-on: d Current message level: 0x00000007 (7) Link detected: yes
解决方法
RX错误意味着您的NIC正在从传输交换机端口接收格式错误的帧.
帧错误表示接收帧时CRC失败.造成这种情况的根本原因可能是电缆损坏,或者机器或交换机上的接口不良.尝试更换电缆,然后移动到交换机上的另一个端口.