我看到（RHEL）节点（数据包被丢弃）的networking问题，这似乎也体现在ifconfig输出中“错误”和“帧”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 “错误”和“框架”的确切含义是什么？
编辑 ： ethtool eth2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
接收错误意味着您的网卡正在从传输交换机端口接收到格式错误的帧。
帧错误意味着接收到帧时CRC失败。 造成这种情况的根本原因可能是电缆不良，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。
在tigon（tg3）驱动程序中，版本v3.134b之前的rxbds_empty事件被logging为帧错误。
您可以通过以下方式查看：
ethtool -S {device}
例如：
[root@srv2-mgmt ~]# ethtool -S em1 NIC statistics: rx_octets: 795609182 rx_fragments: 0 rx_ucast_packets: 4003807 rx_mcast_packets: 313481 rx_bcast_packets: 1906658 rx_fcs_errors: 0 rx_align_errors: 0 rx_xon_pause_rcvd: 0 rx_xoff_pause_rcvd: 0 rx_mac_ctrl_rcvd: 0 rx_xoff_entered: 0 rx_frame_too_long_errors: 0 rx_jabbers: 0 rx_undersize_packets: 0 rx_in_length_errors: 0 rx_out_length_errors: 0 rx_64_or_less_octet_packets: 0 rx_65_to_127_octet_packets: 0 rx_128_to_255_octet_packets: 0 rx_256_to_511_octet_packets: 0 rx_512_to_1023_octet_packets: 0 rx_1024_to_1522_octet_packets: 0 rx_1523_to_2047_octet_packets: 0 rx_2048_to_4095_octet_packets: 0 rx_4096_to_8191_octet_packets: 0 rx_8192_to_9022_octet_packets: 0 tx_octets: 1010597527 tx_collisions: 0 tx_xon_sent: 0 tx_xoff_sent: 0 tx_flow_control: 0 tx_mac_errors: 0 tx_single_collisions: 0 tx_mult_collisions: 0 tx_deferred: 0 tx_excessive_collisions: 0 tx_late_collisions: 0 tx_collide_2times: 0 tx_collide_3times: 0 tx_collide_4times: 0 tx_collide_5times: 0 tx_collide_6times: 0 tx_collide_7times: 0 tx_collide_8times: 0 tx_collide_9times: 0 tx_collide_10times: 0 tx_collide_11times: 0 tx_collide_12times: 0 tx_collide_13times: 0 tx_collide_14times: 0 tx_collide_15times: 0 tx_ucast_packets: 4116171 tx_mcast_packets: 145500 tx_bcast_packets: 1983 tx_carrier_sense_errors: 0 tx_discards: 0 tx_errors: 0 dma_writeq_full: 0 dma_write_prioq_full: 0 rxbds_empty: 0 rx_discards: 0 rx_errors: 0 rx_threshold_hit: 0 dma_readq_full: 0 dma_read_prioq_full: 0 tx_comp_queue_full: 0 ring_set_send_prod_index: 0 ring_status_update: 0 nic_irqs: 0 nic_avoided_irqs: 0 nic_tx_threshold_hit: 0 mbuf_lwm_thresh_hit: 0