Họ là không có gì nhiều hơn so với các máy chủ chạy một công cụ ảo hóa. Bởi vì điều này, họ được xử lý bởi các quản trị viên và kỹ thuật chỉ. Một người sử dụng chạy Microsoft Office Outlook sẽ không bao giờ có bất cứ tương tác với các hồ bơi tài nguyên riêng của mình. | FIGURE 10-9 Guest application failover during a host failure Lesson 1 Working with VM High Availability CHAPTER 10 563 VLAN tagging is based on the Institute of Electrical and Electronics Engineers IEEE standard and is designed to control traffic flow by isolating traffic streams from one another. See http for more information. Isolated streams cannot connect with each other unless a router is linked to each stream and the router includes a route that links both together. In this way you can have a machine linked to VLAN_1 and another linked to VLAN_2 and if there is no route between the two neither machine will be able to view the other s traffic. VLANs can be set up in two ways Static VLANs In a static VLAN you assign static VLAN IDs to each port in a network switch. All traffic that flows through a specific port is then tagged with the VLAN attached to that port. This approach centralizes VLAN control however if you move a computer connection from one port to another you must make sure the new port uses the same VLAN ID or the computer s traffic will no longer be on the same VLAN. Dynamic VLANs In a dynamic VLAN you assign VLAN IDs at the device level. To do so your devices must be aware that is they must support VLAN tagging at the device level. Hyper-V supports dynamic VLAN tagging. This allows Hyper-V to support traffic isolation without requiring a multitude of physical adapters on the host server. Note however that the physical adapters on the host server must support even if you don t assign a VLAN to the adapter itself. VLANs can be assigned at three different levels in Hyper-V You can assign a VLAN ID to the physical adapter itself. If the adapter supports you can assign a VLAN ID as part of the driver configuration for the adapter. You do this by clicking the Configure button in the driver s Properties dialog box and using the values available on the Advanced tab see Figure 10-10 . This isolates the traffic
