Macvlan and IPvlan basics
Macvlan and ipvlan are Linux network drivers that exposes underlay or host interfaces directly to VMs or Containers running in the host. In this blog, I will cover basics of macvlan and ipvlan, compare macvlan and ipvlan to Linux bridge and sub-interfaces and also show how to create these interfaces in Linux system. In the next set of blogs, IÂ will cover how macvlan and ipvlan interfaces are used
Introduction to Linux interfaces for virtual networking | Red Hat Developer
Linux has rich virtual networking capabilities that are used as basis for hosting VMs and containers, as well as cloud environments. In this post, I will give a brief introduction to all commonly used virtual network interface types. There is no code analysis, only a brief introduction to the interfaces and their usage on Linux. Anyone with a network background might be interested in this blog pos
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RHEL7RC+EPEL版Dockerã®å‰æã§è§£èª¬ã—ã¾ã™ã€‚RHEL7RCを最å°æ§‹æˆã§å…¥ã‚Œã¦ã€æ¬¡ã®æ‰‹é †ã§Dockerã‚’å°Žå…¥ã—ã¾ã™ã€‚ # yum -y install bridge-utils net-tools # yum -y install http://download.fedoraproject.org/pub/epel/beta/7/x86_64/epel-release-7-0.1.noarch.rpm # yum -y install docker-io # systemctl enable docker.serviceDockerãŒè¨å®šã™ã‚‹iptablesã®å†…容を見るãŸã‚ã«ï¼ˆè¦‹ã‚„ã™ãã™ã‚‹ãŸã‚ã«ï¼‰ã€firewalldã‚’åœæ¢ã—ãŸä¸Šã§dockerサービスを起動ã—ã¾ã™ã€‚ # systemctl stop firewalld.service # systemctl mask firew
OpenStack Neutron ã‚’å˜ç‹¬ã§å‹•ã‹ã—ã¦ã¿ã‚‹
Neutron 㯠OpenStack ã®ä¸ã§ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯å‘¨ã‚Šã‚’å¸ã‚‹ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã€‚ 通常㯠OpenStack ã®ãã®ä»–ã®ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã¨çµ„ã¿åˆã‚ã›ã¦ä½¿ã†ãれをã€å‹•ä½œã®ç†è§£ã‚’æ·±ã‚ã‚‹ãŸã‚ã«ä»Šå›žã¯å˜ç‹¬ã§å‹•ã‹ã—ã¦ã¿ã‚‹ã€‚ 使ã†ãƒ—ラグインã¯ä»Šé¢¨ã® ML2 ã«ã™ã‚‹ã€‚ 使ã†ç’°å¢ƒã¯ä»¥ä¸‹ã®é€šã‚Šã€‚ $ cat /etc/redhat-release CentOS release 6.5 (Final) $ uname -r 2.6.32-431.11.2.el6.x86_64 $ sudo yum -y install python-devel $ wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py -O - | sudo python $ sudo easy_install pip $ sudo pip install
Linux Network Namespace
Linux ãŒæŒã¤ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä»®æƒ³åŒ–機能ã®è©±ã€‚ kernel 2.6.24 以é™ã§ã‚µãƒãƒ¼ãƒˆã•ã‚Œã‚‹ã€‚実行ã«ã¯iprouteパッケージ㮠3（ãŠãらã） 以é™ãŒå¿…è¦ã€‚ Fedora16, 17ã€Ubuntu12.04 ã¯æ¨™æº–ã§åˆ©ç”¨å¯èƒ½ã‚’確èªã€‚ RHEL6ç³»ã¯iprouteã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ãŒä½Žã„ãŸã‚利用ä¸å¯ã€‚ 利用å¯å¦ã¯ä»¥ä¸‹ã®ã‚³ãƒžãƒ³ãƒ‰ã§ç¢ºèªå¯èƒ½ã€‚ # ip netns ã“ã®ã‚³ãƒžãƒ³ãƒ‰ãŒã‚¨ãƒ©ãƒ¼ã«ãªã‚‰ãªã‘ã‚Œã°ã€åˆ©ç”¨æ¡ä»¶ã‚’満ãŸã›ã¦ã„る（ã¯ãš 利用方法ã¯ä»¥ä¸‹ 一ã¤ã®ãƒ›ã‚¹ãƒˆå†…ã§ç‹¬ç«‹ã—ãŸãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ç’°å¢ƒã‚’作æˆã§ãる。 作æˆã—ãŸãƒãƒ¼ãƒ スペースã¯ãƒ›ã‚¹ãƒˆã®ç‰©ç†ç’°å¢ƒã‚„ã€ä»–ã®ãƒãƒ¼ãƒ スペースã®å¹²æ¸‰ã‚’å—ã‘ãªã„。 特ã«1ホスト上ã§ã®ä»®æƒ³ãƒžã‚·ãƒ³ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯çš„ãªåˆ†é›¢ã«åˆ©ç”¨ã•ã‚Œã‚‹ã€‚ ■作æˆæ–¹æ³• # ip netns add testns01 â– ãƒãƒ¼ãƒ スペースã®ç¢ºèª # ip netns testns01 â– ãƒãƒ¼ãƒ スペースã®ãƒãƒƒãƒˆãƒ¯ãƒ¼
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