IBM PowerVM虚拟化环境中,VIO Server 和LPAR中网络的配置,一直没有搞清楚,换了个接口就完全不通了。 看了半天文档,终于算大致理清了IBM 虚拟环境中网络是咋搞的。 看明白了就懒的说了,以下是学习过程中随手记下的文字,留作以后参考。
$ lsdev | grep en en0 Available Standard Ethernet Network Interface en1 Defined Standard Ethernet Network Interface en2 Defined Standard Ethernet Network Interface en3 Defined Standard Ethernet Network Interface en4 Defined Standard Ethernet Network Interface en5 Defined Standard Ethernet Network Interface en6 Defined Standard Ethernet Network Interface en7 Defined Standard Ethernet Network Interface en8 Defined Standard Ethernet Network Interface en9 Defined Standard Ethernet Network Interface en10 Defined Standard Ethernet Network Interface en11 Defined Standard Ethernet Network Interface ent0 Available 4-Port 10/100/1000 Base-TX PCI-Express Adapter (14106803) ent1 Available 4-Port 10/100/1000 Base-TX PCI-Express Adapter (14106803) ent2 Available 4-Port 10/100/1000 Base-TX PCI-Express Adapter (14106803) ent3 Available 4-Port 10/100/1000 Base-TX PCI-Express Adapter (14106803) ent4 Available Logical Host Ethernet Port (lp-hea) ent5 Available Logical Host Ethernet Port (lp-hea) ent6 Available Logical Host Ethernet Port (lp-hea) ent7 Available Logical Host Ethernet Port (lp-hea) ent8 Available Virtual I/O Ethernet Adapter (l-lan) ent9 Available Virtual I/O Ethernet Adapter (l-lan) ent10 Available Virtual I/O Ethernet Adapter (l-lan) ent11 Available Virtual I/O Ethernet Adapter (l-lan) ibmvmc0 Available Virtual Management Channel
这8个物理网卡均可以连接外部网络,使得LPAR或微分区可以访问外部网络。 2. ent8-ent11是4个虚拟的网络适配器,用于连接4个自动生成的虚拟以太网。 3. 8个物理网卡和4个虚拟网卡,对应于12个标准以太网接口(接口是三层概念,网卡适配器adapter是2层概念)。 4. 在一个LPAR上,由于仅定义了2个虚拟以太网,所以有2个虚拟网卡(Virutal I/O Ethernet Adapter)。 5. 另一个LPAR上,在HEA配置界面中仅配置了2个HEA,因此系统中可以看到2个lp-hea。 # lsdev |grep en en0 Available Standard Ethernet Network Interface en1 Defined Standard Ethernet Network Interface en2 Defined Standard Ethernet Network Interface en3 Defined Standard Ethernet Network Interface ent0 Available Virtual I/O Ethernet Adapter (l-lan) ent1 Available Virtual I/O Ethernet Adapter (l-lan) ent2 Available Logical Host Ethernet Port (lp-hea) ent3 Available Logical Host Ethernet Port (lp-hea) inet0 Available Internet Network Extension rcm0 Defined Rendering Context Manager Subsystem vscsi0 Available Virtual SCSI Client Adapter
一个SEA网卡ent12,对应的接口为en12,此时,en0的IP将漂移到en12上(即原来采用物理网卡直接通信,配置SEA后,都通过SEA对外通信)。在LPAR上,虚拟网络1对应于1个l-lan网卡ent0,ent0对应的接口为en0,此时,在en0上配置与VIO Server en0(已漂移至en12)相同网段的IP地址,即可实现两者的通信,通过配置合适的网关,即可实现对外部网络的访问。