11:42
06/10

Centos 7 新增網路卡

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公司的工作站最近要新增一張10G網路卡為了確實可行性先在VM上模擬過一遍確認可以執行

先確認硬體安裝上去後Centos 有認到新的硬體

# dmesg | grep -in eth
1752:[ 4.609413] e1000 0000:02:01.0 eth0: (PCI:66MHz:32-bit) 00:0c:29:aa:01:d7
1753:[ 4.609420] e1000 0000:02:01.0 eth0: Intel(R) PRO/1000 Network Connection
1765:[ 5.416469] e1000 0000:02:05.0 eth1: (PCI:66MHz:32-bit) 00:0c:29:aa:01:e1
1766:[ 5.416474] e1000 0000:02:05.0 eth1: Intel(R) PRO/1000 Network Connection

2.查閱該裝置相關的資訊

[root@localhost ~] ip link show

1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: ens33: mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
link/ether 00:0c:29:aa:01:d7 brd ff:ff:ff:ff:ff:ff
3: ens37: mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 00:0c:29:aa:01:e1 brd ff:ff:ff:ff:ff:ff

3. 產生新網卡的 UUID

[root@localhost]# uuidgen ens37

1afe651a-c4ad-4bd7-9ac9-2b2bb08c2844

建立新網卡設定檔
複製舊的修改

[root@localhost]# cp ifcfg-ens33 ifcfg-ens37
[root@localhost]# vim ifcfg-ens37

NAME、UUID、DEVICE、HWADDR修改為新網卡資料
啟動新網卡

[root@localhost network-scripts]# ifup ifcfg-ens37
Determining IP information for ens37… done.
[root@localhost network-scripts]# ifconfig
ens33: flags=4163 mtu 1500
inet 192.168.111.136 netmask 255.255.255.0 broadcast 192.168.111.255
inet6 fe80::20c:29ff:feaa:1d7 prefixlen 64 scopeid 0x20 ether 00:0c:29:aa:01:d7 txqueuelen 1000 (Ethernet)
RX packets 1585 bytes 126140 (123.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1014 bytes 349975 (341.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

ens37: flags=4163 mtu 1500
inet 192.168.111.137 netmask 255.255.255.0 broadcast 192.168.111.255
inet6 fe80::20c:29ff:feaa:1e1 prefixlen 64 scopeid 0x20 ether 00:0c:29:aa:01:e1 txqueuelen 1000 (Ethernet)
RX packets 8 bytes 1046 (1.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 11 bytes 1390 (1.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

[root@localhost network-scripts]#