January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Content preview from 可编程网络自动化
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Linux
高级联网
｜
405
就像在
KVM
和
Libvirt
中使用网桥一样，域的
XML
配置只需要引用
Libvirt
网络。
<interface
type="network"
>
<source
network="macvtap-net"
/>
</interface>
当使用
Libvirt
启动
VM
时，它会在所关联的物理接口上自动创建一个
macvtap
接口。可以
执行
ip link list
进行验证。应该会在输出中看到
macvtap
接口。
使用
macvtap
接口有一个值得注意的副作用
：在访客域中看到的
MAC
地址和
macvtap
接
口使用的
MAC
地址是一样的
。例如，下面是在使用
macvtap
接口时，在访客域中执行命
令
ip link list eth0
的输出。
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 52:54:00:9c:51:74 brd ff:ff:ff:ff:ff:ff
作为比较，下面是在宿主系统中执行命令
ip link list macvtap0
得到的输出，其中
macvtap0
是启动访客域时由
Libvirt
创建的
macvtap
接口。
5: macvtap0@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
UNKNOWN mode DEFAULT group ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.