Linux server: Dropped packets
- by Lars
I see dropped packets using ifconfig on my eth0 interface:
eth0 Link encap:Ethernet HWaddr 00:15:17:0d:03:ca
inet addr:10.0.1.2 Bcast:10.0.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:30268348 errors:0 dropped:70721 overruns:0 frame:0
TX packets:133076885 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8699434077 (8.6 GB) TX bytes:194937313025 (194.9 GB)
Interrupt:16 Memory:feae0000-feb00000
When i use ethtool -S i dont see anything wrong:
NIC statistics:
rx_packets: 30267138
tx_packets: 133074510
rx_bytes: 8699356158
tx_bytes: 194934147340
rx_broadcast: 35296
tx_broadcast: 5435
rx_multicast: 0
tx_multicast: 0
rx_errors: 0
tx_errors: 0
tx_dropped: 0
multicast: 0
collisions: 0
rx_length_errors: 0
rx_over_errors: 0
rx_crc_errors: 0
rx_frame_errors: 0
rx_no_buffer_count: 0
rx_missed_errors: 0
tx_aborted_errors: 0
tx_carrier_errors: 0
tx_fifo_errors: 0
tx_heartbeat_errors: 0
tx_window_errors: 0
tx_abort_late_coll: 0
tx_deferred_ok: 0
tx_single_coll_ok: 0
tx_multi_coll_ok: 0
tx_timeout_count: 0
tx_restart_queue: 0
rx_long_length_errors: 0
rx_short_length_errors: 0
rx_align_errors: 0
tx_tcp_seg_good: 5757001
tx_tcp_seg_failed: 0
rx_flow_control_xon: 8649
rx_flow_control_xoff: 62072
tx_flow_control_xon: 0
tx_flow_control_xoff: 0
rx_long_byte_count: 8699356158
rx_csum_offload_good: 30212111
rx_csum_offload_errors: 0
rx_header_split: 10857552
alloc_rx_buff_failed: 0
tx_smbus: 0
rx_smbus: 0
dropped_smbus: 0
rx_dma_failed: 0
tx_dma_failed: 0
I am running Ubuntu 12.04 with kernel 3.2.0-30-generic #48-Ubuntu SMP
I have pinged every device on my internal network for about 24 hours, without packet loss.
Also checked my router and my interface to the WAN, also no errors there.
Does anyone have any clue?