Network Resource

Network Diagram

ZStack supports the network diagram feature. Notice that the Cloud not only supports the global diagram (All), but also allows you to generate your own diagram (Custom) by selecting resources where you can quickly locate the resource states.

Global Diagram Operations

You can perform the following operations on a global diagram:

Check: Allow you to directly check the network diagram of the entire cloud.
Refresh: Click the refresh button at the upper left on the UI to display the latest global diagram.
Export: Click the Export button at the upper left on the UI to export the current global diagram as the png format.
Search: Click the Search button at the upper right on the UI to display the Search box. You can conduct searches by resource types and resource properties.
- Supported resource types: VM instance, router (vRouter or VPC vRouter), private network, and public network.
- Supported resource properties: resource name, resource UUID, IP address, and EIP.
Zoom in/out: Click the Zoom In or Zoom Out button at the lower right on the UI to zoom in or out the current network diagram.
Default: Click the Default button at the lower right on the UI to recover the network diagram that you have zoomed in or out to the default size.
Highlighted display via resource selection: Select the resource to be highlighted. When you select a resource, you can highlight that resource and its associated resources.
Floated display of resource information: Provide a floating display of a resource to which you hover over. The related information of the resource will be automatically floated on the UI.
Open console: Open the console of the resource to which you hover over. The related information of the resource will be automatically floated on the UI. Then, click the console button at the upper right of the floating page to open the console of the resource.

State display of router or VM instance: Manipulate real-time states of routers or VM instances by the dot colors at the upper right of the resources. For more information, see State Display Definition for Router or VM Instance.

Table 1. State Display Definition for Router or VM Instance
Router/VM State	Dot Color
Starting	Blue
Running	Green
Stopping	Blue
Stopped	Red
Rebooting	Blue
Deleting	Blue
Deleted	Grey
Migrating	Blue
Expunging	Blue
Pausing	Blue
Paused	Grey
Recovering	Blue
Unknown	Yellow

Custom Diagram Operations

You can perform the following operations on a custom diagram:

Generate and check diagram by specifying resource: Generate and check a corresponding network diagram by specifying resources. Currently, these resources include VM instance, router (vRouter or VPC vRouter), private network, and public network.
Refresh: Click the refresh button at the upper left on the UI to display the latest diagram.
Export: Click the Export button at the upper left on the UI to export the current diagram as the png format.
Search: Click the Search button at the upper right on the UI to display the Search box. You can conduct searches by resource types and resource properties.
- Generate the custom network diagram in advance. By using the Search button, you can conduct searches for the resources on the custom diagram.
- Supported resource types: VM instance, router (vRouter or VPC vRouter), private network, and public network.
- Supported resource properties: resource name, resource UUID, IP address, and EIP.
Zoom in/out: Click the Zoom In or Zoom Out button at the lower right on the UI to zoom in or out the current network diagram.
Default: Click the Default button at the lower right on the UI to recover the network diagram that you have zoomed in or out to the default size.
Highlighted display via resource selection: Select the resource to be highlighted. When you select a resource, you can highlight that resource and its associated resources.
Floated display of resource information: Provide a floating display of a resource to which you hover over. The related information of the resource will be automatically floated on the UI.
Open console: Open the console of the resource to which you hover over. The related information of the resource will be automatically floated on the UI. Then, click the console button at the upper right of the floating page to open the console of the resource.
State display of router or VM instance: Manipulate real-time states of routers or VM instances by the dot colors at the upper right of the resources. For more information, see Table 1.

L2 Network Resource

VXLAN Pool

A VXLAN Pool is a collection of VXLAN types that encapsulate packets with UDP. It is a large layer 2 network established over an IP network for a large-scale cloud computing center.

To use a VXLAN network, create a VXLAN Pool first.
A VXLAN Pool cannot be used to create an L3 network, and is only a collection of VXLAN networks.
A VXLAN Pool supports two types of SDN: software SDN and hardware SDN.
- Software SDN:
  - The VNI range of a software SDN VXLAN Pool supports 1-16777214.
  - The CIDR IP address of a host that is attached to a cluster can serve as a VTEP (VXLAN tunnel endpoint).
    - Generally, a VTEP corresponds to an NIC IP address of a compute node within a cluster. On the Cloud, you can configure a VTEP according to its corresponding CIDR. For example,
      - Assume that the NIC IP address of a compute node is 10.12.0.8, the subnet mask is 255.0.0.0, and the gateway is 10.0.0.1. Then, the CIDR of the VTEP is 10.0.0.1/8.
      - Assume that the NIC of the compute node is 172.20.12.13, the subnet mask is 255.255.0.0, and the gateway is 172.20.0.1. Then, the CIDR of the VTEP is 172.20.0.1/16.
    - When a VXLAN Pool is attached to a cluster, the IP address that is associated to the VTEP will be looked up without checking physical L2 devices.
- Hardware SDN:
  - An SDN controller needs to be added to the Cloud in advance.
  - The VNI range of a hardware SDN VXLAN Pool depends on a virtually distributed switch to which an SDN controller corresponds.
  - The NIC of a host that is attached to a cluster must connect to a switch managed by the SDN controller.
  - If you use VCFC to configure hardware SDN, verify that you configure the mapping between VLAN and VXLAN on VCFC in advance.

VXLAN Pool Operations

You can perform the following operations on a VXLAN Pool:

Change name: Change the name of the VXLAN Pool.
Change description: Change the description of the VXLAN Pool.
Attach cluster: Attach the VXLAN Pool to a cluster.
- Software SDN VXLAN Pool: Specify a CIDR to which a VTEP corresponds. Make sure that the CIDR of each host in the cluster has the corresponding IP address. Or otherwise, you will fail to attach the VXLAN Pool to the cluster.
- Hardware SDN VXLAN Pool: The NIC of a host that is attached to a cluster must connect to a switch managed by an SDN controller.
Detach cluster: Detach a cluster from the VXLAN Pool.
Delete: Delete the VXLAN Pool. If you delete the VXLAN Pool, its corresponding subresource VXLAN networks, associated L3 network, and VM NICs will be deleted as well.
Share: Share the VXLAN Pool to the specified regular account.
Recall: Recall the VXLAN Pool from the regular account. You can make this account invisible.
Share to all: Share the VXLAN Pool to all regular accounts.
Recall from all: Recall the VXLAN Pool from all regular accounts. You can make these accounts invisible.
Create VNI range: Create a VNI range to the VXLAN Pool.
Delete VNI range: Delete a VNI range from the VXLAN Pool.
Change VNI range name: Change the VNI range name of the current VXLAN Pool. Only a single operation is supported.
Note:
- Changing a VNI range name supports up to 255 characters. You can use special characters as needed.
- Under one VXALN Pool, different VNI ranges can use the same VNI range name.
Create VXLAN network: Create a VXLAN network according to a VXLAN Pool. Each VXLAN network corresponds to a VNI in a VXLAN Pool.
Delete VXLAN network: Delete the VXLAN network. If you delete the VXLAN network, its corresponding subresource L3 network and VM NICs of the L3 network will be deleted as well.
Audit: Check the related operations of the VXLAN Pool.

Notice

VXLAN Pool and VxlanNetwork are a logical grouping of L2 network overlaid over L3 networks, and are specifically used by VxlanNetwork. Before you use VxlanNetwork, create a VXLAN Pool. Clusters are associated to VTEP of L3 networks. Encapsulation and de-encapsulation of VTEP messages are based on VTEP. After you complete creating VXLAN Pools, you can create VxlanNetwork by specifying or randomly selecting VNIs. Finally, create L3 networks based on VxlanNetwork, and then use them to create VM instances.
When you attach a cluster to a VXLAN Pool, check whether the corresponding IP range of all hosts within the cluster have available IP addresses to match VTEP. If no IP addresses of the hosts are available, you cannot attach the cluster to this VXLAN Pool correctly.
A VXLAN Pool can only attach or detach a cluster. VxlanNetwork is the subresource of the VXLAN Pool, and cannot attach or detach any cluster.

Network Resource

Network Diagram

Global Diagram Operations

Custom Diagram Operations

L2 Network Resource

VXLAN Pool

VXLAN Pool Operations

Notice

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