常用命令：
看是否有errors
[mqm@yclb ~]$ netstat -s|grep "error"
0 packet receive errors
0 receive buffer errors
0 send buffer errors
看是否有ERR/DRP
[mqm@yclb ~]$ netstat -in
Kernel Interface table
Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
bond0 1500 9704311 0 0 0 518412 0 0 0 BMmRU
bond0:1 1500 - no statistics available - BMmRU
bond1 1500 363 0 0 0 12 0 0 0 BMmRU
eno1 1500 16452 0 0 0 12718 0 0 0 BMsRU
eno2 1500 1143 0 0 0 962 0 0 0 BMsRU
eno3 1500 5066569 0 0 0 470272 0 0 0 BMsRU
eno4 1500 4643927 0 0 0 48146 0 0 0 BMsRU
ens106f0 1500 0 0 0 0 0 0 0 0 BMU
ens106f1 1500 0 0 0 0 0 0 0 0 BMU
ens107f0 1500 0 0 0 0 0 0 0 0 BMU
ens107f1 1500 0 0 0 0 0 0 0 0 BMU
lo 65536 2154 0 0 0 2154 0 0 0 LRU
看是否有异常：
[mqm@yclb ~]$ sar -n EDEV 1 5
Linux 3.10.0-1160.el7.x86_64 (yclb) 04/26/2024 _x86_64_ (128 CPU)
10:56:25 AM IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s
10:56:26 AM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM eno1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM eno2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM eno3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM eno4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM bond0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM ens107f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM ens107f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM ens106f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM ens106f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:26 AM IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s
10:56:27 AM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM eno1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM eno2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM eno3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM eno4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM bond0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM ens107f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM ens107f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM ens106f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM ens106f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:27 AM IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s
10:56:28 AM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM eno1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM eno2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM eno3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM eno4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM bond0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM ens107f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM ens107f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM ens106f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM ens106f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:28 AM IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s
10:56:29 AM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM eno1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM eno2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM eno3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM eno4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM bond0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM ens107f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM ens107f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM ens106f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM ens106f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:29 AM IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s
10:56:30 AM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM eno1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM eno2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM eno3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM eno4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM bond0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM ens107f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM ens107f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM ens106f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10:56:30 AM ens106f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s
Average: bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: eno1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: eno2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: eno3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: eno4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: bond0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: ens107f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: ens107f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: ens106f0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: ens106f1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
查看Link Failure Count情况：
[root@yclb net]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eno4
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eno4
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 74:5d:22:d7:d7:e9
Slave queue ID: 0
Slave Interface: eno3
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 74:5d:22:d7:d7:e8
Slave queue ID: 0
[root@yclb net]#
[mqm@yclb ~]$ ethtool bond0
Settings for bond0:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Other
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Cannot get wake-on-lan settings: Operation not permitted
Link detected: yes
[mqm@yclb ~]$ ethtool eno3
Settings for eno3:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: on (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
[mqm@yclb ~]$ ethtool eno4
Settings for eno4:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off (auto)
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
看网卡errs情况
[root@yclb net]# cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
bond1: 23220 387 0 0 0 0 0 181 824 12 0 0 0 0 0 0
eno1: 2147979 16476 0 0 0 0 0 3704 1864565 12718 0 0 0 0 0 0
eno2: 103722 1143 0 0 0 0 0 41 79952 962 0 0 0 0 0 0
eno3: 6121649805 5079826 0 0 0 0 0 4162492 88681498 470272 0 0 0 0 0 0
eno4: 6042294865 4660689 0 0 0 0 0 4162499 8210615 51157 0 0 0 0 0 0
bond0: 12155845535 9734330 0 0 0 0 0 8318580 96892113 521429 0 0 0 0 0 0
lo: 277042 2154 0 0 0 0 0 0 277042 2154 0 0 0 0 0 0
ens107f0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ens107f1: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ens106f0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ens106f1: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
[root@yclb net]#
相关参考：
https://blog.csdn.net/hezuijiudexiaobai/article/details/134457903
https://zhuanlan.zhihu.com/p/667574905
最后修改时间：2024-04-26 12:04:12
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