Help Center> Bare Metal Server> User Guide> Network> Enhanced High-Speed Network> Configuring an Enhanced High-Speed NIC (Ubuntu)

Configuring an Enhanced High-Speed NIC (Ubuntu)

This section uses Ubuntu 16.04 LTS (Xenial Xerus x86_64) as an example to describe how to bond enhanced high-speed NICs of a BMS.

The configuration methods of other Ubuntu OSs are similar to that of Ubuntu 16.04 LTS (Xenial Xerus x86_64).

Add a NIC

Use a key or password to log in to the BMS as user root.

On the BMS CLI, run the following command to check the NIC information:

ip link

Information similar to the following is displayed:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP group default qlen 1000
    link/ether fa:16:00:9b:91:c3 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP group default qlen 1000
    link/ether fa:16:00:9b:91:c3 brd ff:ff:ff:ff:ff:ff
4: p5p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 40:7d:0f:52:e4:1d brd ff:ff:ff:ff:ff:ff
5: p5p2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 40:7d:0f:52:e4:1e brd ff:ff:ff:ff:ff:ff
6: p4p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 40:7d:0f:52:e3:a9 brd ff:ff:ff:ff:ff:ff
7: p4p2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 40:7d:0f:52:e3:aa brd ff:ff:ff:ff:ff:ff
8: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP group default qlen 1000
    link/ether fa:16:00:9b:91:c3 brd ff:ff:ff:ff:ff:ff
    inet 192.168.254.85/24 brd 192.168.254.255 scope global bond0
       valid_lft forever preferred_lft forever
    inet6 fe80::f816:ff:fe9b:91c3/64 scope link 
       valid_lft forever preferred_lft forever
9: bond0.3157@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP group default qlen 1000
    link/ether fa:16:00:9c:1e:79 brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.14/24 brd 192.168.100.255 scope global bond0.3157
       valid_lft forever preferred_lft forever
    inet6 fe80::f816:ff:fe9c:1e79/64 scope link 
       valid_lft forever preferred_lft forever
10: bond0.3159@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP group default qlen 1000
    link/ether fa:16:00:0a:2e:8e brd ff:ff:ff:ff:ff:ff
    inet 192.168.101.153/24 brd 192.168.101.255 scope global bond0.3159
       valid_lft forever preferred_lft forever
    inet6 fe80::f816:ff:fe0a:2e8e/64 scope link 
       valid_lft forever preferred_lft forever

eth0 and eth1 bear the VPC, and p5p1, p5p2, p4p1, and p4p2 bear the enhanced high-speed network. The following operations describe how to bond enhanced high-speed NICs p4p1 and p4p2.

Run the following command to check whether the /etc/udev/rules.d/ directory contains the 80-persistent-net.rules file:

ll /etc/udev/rules.d/ | grep 80-persistent-net.rules
- If yes, and the file contains all NICs except bond0 and lo obtained in step 2 and their MAC addresses, go to step 6.
- If no, go to step 4.
Run the following command to copy the /etc/udev/rules.d/70-persistent-net.rules file and name the copy as /etc/udev/rules.d/80-persistent-net.rules.

cp -p /etc/udev/rules.d/70-persistent-net.rules /etc/udev/rules.d/80-persistent-net.rules

Configure the udev rules:

Add the NICs and their MAC addresses obtained in step 2, except lo, eth0, eth1, and bond0, to the /etc/udev/rules.d/80-persistent-net.rules file. This ensures that the names and sequence of NICs will not change after the BMS is restarted.

Ensure that NIC MAC address and name are lowercase letters.

vim /etc/udev/rules.d/80-persistent-net.rules

The modification result is as follows:

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="f4:4c:7f:5d:b6:fc", NAME="eth0"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="f4:4c:7f:5d:b6:fd", NAME="eth1"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="40:7d:0f:52:e4:1d", NAME="p5p1"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="40:7d:0f:52:e4:1e", NAME="p5p2"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="40:7d:0f:52:e3:a9", NAME="p4p1"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="40:7d:0f:52:e3:aa", NAME="p4p2"

After the modification, press Esc, enter :wq, save the configuration, and exit.

Run the following command to copy the /etc/network/interfaces.d/50-cloud-init.cfg file to generate the /etc/network/interfaces.d/60-cloud-init.cfg file:

cp -p /etc/network/interfaces.d/50-cloud-init.cfg /etc/network/interfaces.d/60-cloud-init.cfg

If the /etc/network/interfaces.d/50-cloud-init.cfg file does not exist, copy the /etc/network/interfaces file and run the following commands:

mkdir /etc/network/interfaces.d

cp -p /etc/network/interfaces /etc/network/interfaces.d/60-cloud-init.cfg
Run the following command to edit the /etc/network/interfaces.d/60-cloud-init.cfg file of devices p4p1 and p4p2:

vim /etc/network/interfaces.d/60-cloud-init.cfg

Edit the file as follows:
```
auto p4p1
iface p4p1 inet manual
bond_mode 1
bond-master bond1
bond_miimon 100
mtu 8888

auto p4p2
iface p4p2 inet manual
bond_mode 1
bond-master bond1
bond_miimon 100
mtu 8888

auto bond1
iface bond1 inet static
bond_miimon 100
bond-slaves none
bond_mode 1
address 10.10.10.103
netmask 255.255.255.0
hwaddress 40:7d:0f:52:e3:a9
mtu 8888
```
Parameters are as follows:
- p4p1 and p4p2 are the names of the NICs that carry the enhanced high-speed network.
- hwaddress is the MAC address of p4p1.
- Change the value of address to the IP address allocated to enhanced high-speed network bond1. If the IP address planned for the enhanced high-speed network does not conflict with the VPC network segment, you can plan the IP address as needed, only to ensure that BMSs communicating through the enhanced high-speed network are in the same network segment as the enhanced high-speed network.
- Set the value of netmask to the subnet mask of the IP address configured for enhanced high-speed network bond1.
Set values of other parameters. For example, set mtu to 8888, bond_miimon to 100, and bond_mode to 1.

After the modification, press Esc, enter :wq, save the configuration, and exit.
Run the following command to enable the bond NIC:

ifup p4p1

ifup p4p2

p4p1 and p4p2 are the NICs bearing the enhanced high-speed network.
Run the following commands to check the NIC device status and whether the bond1 configuration file takes effect:

ip link

ifconfig
Perform the preceding operations to configure other BMSs.

After all BMSs are configured, ping the IP address in the same network segment as the enhanced high-speed network of other BMSs from each BMS.

For example, run the ping 10.10.10.102 command. The command output is as follows:

[root@bms-ubuntu ~]# ping 10.10.10.102 -I bond1
PING 10.10.10.102 (10.10.10.102) from 10.10.10.103 bond1: 56(84) bytes of data.
64 bytes from 10.10.10.102: icmp_seq=1 ttl=64 time=0.681 ms
64 bytes from 10.10.10.102: icmp_seq=2 ttl=64 time=0.035 ms
64 bytes from 10.10.10.102: icmp_seq=3 ttl=64 time=0.031 ms
64 bytes from 10.10.10.102: icmp_seq=4 ttl=64 time=0.030 ms
^C
--- 10.10.10.102 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3342ms

To configure a VLAN, perform the following steps:

Configure the corresponding VLAN sub-interfaces based on the VLAN to be configured. Assuming that the VLAN ID is 316, run the following command to edit the /etc/network/interfaces.d/60-cloud-init.cfg file:

vim /etc/network/interfaces.d/60-cloud-init.cfg

Edit the file as follows:

auto p4p1
iface p4p1 inet manual
bond_mode 1
bond-master bond1
bond_miimon 100
mtu 8888

auto p4p2
iface p4p2 inet manual
bond_mode 1
bond-master bond1
bond_miimon 100
mtu 8888

auto bond1
iface bond1 inet static
bond_miimon 100
bond-slaves none
bond_mode 1
address 10.10.10.103
netmask 255.255.255.0
hwaddress 40:7d:0f:52:e3:a9
mtu 8888

auto bond1.316
iface bond1.316 inet static
bond_miimon 100
bond-slaves none
bond_mode 1
address 10.10.0.103
netmask 255.255.255.0
hwaddress 40:7d:0f:52:e3:a9
mtu 8888

Run the following command to enable the VLAN sub-interface of the bond NIC:

ifup bond1.316
After all BMSs are configured, ping the IP address in the same network segment as the enhanced high-speed network VLAN sub-interface of other BMSs from each BMS.

Delete a NIC

Obtain the IP address of the bonded enhanced high-speed NIC to be deleted.
Use a key or password to log in to the BMS as user root.
Locate the bond network device and run the following command to stop and delete the device: If the bond has VLAN sub-interfaces, they will be automatically deleted.
```
[root@bms-ubuntu ~]# ifdown p4p1
[root@bms-ubuntu ~]# ifdown p4p2
[root@bms-ubuntu ~]# ifdown bond1
```
Run the following command to delete network configuration file /etc/network/interfaces.d/60-cloud-init.cfg:
rm -f /etc/network/interfaces.d/60-cloud-init.cfg

Parent topic: Enhanced High-Speed Network

Last Article: Configuring an Enhanced High-Speed NIC (Red Hat, CentOS, Oracle Linux, and EulerOS)

Next Article: Configuring an Enhanced High-Speed NIC (Windows Server)

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Configuring an Enhanced High-Speed NIC (Ubuntu)

Add a NIC

Delete a NIC