ich nehme gerade eine neue Hardware in Betrieb und mir ist aufgefallen es es immer wieder dropped packets gibt.
Leider finde ich deren Grund nicht, vielleicht hat jemand eine Idee:
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root@kvm:~# ifconfig
br0 Link encap:Ethernet Hardware Adresse 0c:c4:xx:xx:xx:xx
inet Adresse:10.23.0.44 Bcast:10.23.255.255 Maske:255.255.0.0
inet6-Adresse: fe80::ec4:____:____:____/64 Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1
RX packets:3516 errors:0 dropped:0 overruns:0 frame:0
TX packets:1884 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:0
RX bytes:622597 (608.0 KiB) TX bytes:436635 (426.4 KiB)
eth0 Link encap:Ethernet Hardware Adresse 0c:c4:xx:xx:xx:xx
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metrik:1
RX packets:3741 errors:0 dropped:37 overruns:0 frame:0
TX packets:1917 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:690839 (674.6 KiB) TX bytes:438837 (428.5 KiB)
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root@kvm:~# ethtool -S eth0 | grep -v 0
NIC statistics:
rx_bytes: 743636
tx_bytes: 476126
rx_pkts_nic: 4239
rx_bytes_nic: 759514
lsc_int: 3
rx_dropped: 44
multicast: 1111
fdir_match: 2148
fdir_miss: 1192
os2bmc_rx_by_bmc: 12
os2bmc_tx_by_bmc: 11
os2bmc_tx_by_host: 12
os2bmc_rx_by_host: 11
tx_queue_1_packets: 222
tx_queue_2_packets: 145
tx_queue_3_packets: 35
tx_queue_4_packets: 36
tx_queue_4_bytes: 2753
tx_queue_5_packets: 17
tx_queue_5_bytes: 9143
tx_queue_12_packets: 13
tx_queue_13_packets: 24
tx_queue_14_packets: 7
tx_queue_14_bytes: 623
tx_queue_15_packets: 12
tx_queue_18_packets: 4
tx_queue_18_bytes: 316
tx_queue_21_packets: 19
tx_queue_21_bytes: 1811
tx_queue_31_packets: 31
rx_queue_1_packets: 238
rx_queue_2_packets: 118
rx_queue_3_packets: 27
rx_queue_3_bytes: 2714
rx_queue_4_packets: 31
rx_queue_4_bytes: 2839
rx_queue_5_packets: 6
rx_queue_5_bytes: 1214
rx_queue_6_packets: 12
rx_queue_8_packets: 22
rx_queue_8_bytes: 3161
rx_queue_9_packets: 6
rx_queue_9_bytes: 1458
rx_queue_11_packets: 477
rx_queue_11_bytes: 44683
rx_queue_12_packets: 8
rx_queue_13_packets: 31
rx_queue_13_bytes: 2357
rx_queue_14_packets: 2
rx_queue_14_bytes: 148
rx_queue_31_packets: 1
root@kvm:~#
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root@kvm:~# lspci | grep Eth
03:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01)
03:00.1 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01)
root@kvm:~# uname -a
Linux kvm 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux
root@kvm:~#
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tcpdump
[...]
105 packets captured
137 packets received by filter
0 packets dropped by kernel
1 packet dropped by interface