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.
Create VXLAN Pool
In the navigation pane of the ZStack Private Cloud, choose Network Resource > L2 Network Resource > VXLAN Pool. On the VXLAN Pool page, click Create
VXLAN Pool. On the displayed Create VXLAN Pool
page, set the following parameters:
Name: Enter a name for the VXLAN Pool.
Description: Optional. Enter a description for the
VXLAN Pool.
Type: Select a type for the VXLAN Pool, including
software SDN and hardware SDN.
If you select the software SDN type, set the following
parameters:
Start Vni: Enter a start ID for the
VxlanNetwork. The start ID supports 1-16777214.
End Vni: Enter an end ID for the
VxlanNetwork. The end ID supports 1-16777214, which must be
larger than or equal to the Start VNI.
Note: The Cloud will
reserve the last two VNIs (16777215 and 16777216) for
the system.
Cluster: Optional. Select the cluster
to be attached.
Note:
When you create a VXLAN Pool, you can attach it
to a cluster. Or, you can attach it to the cluster
after you create the VXLAN Pool.
When you attach the cluster, the compute node in
the cluster must have a subnet IP address that is
associated to the VTEP.
VTEP CIDR: Enter the CIDR to which
the VTEP corresponds.
You can create a VXLAN Pool with the software SDN type, as
shown in Create Software SDN VXLAN Pool.Figure 1. Create Software SDN VXLAN Pool
If you select the hardware SDN type, set the following
parameters:
SDN Controller: Add an SDN controller
to the Cloud in advance.
Start Vni: Enter a start ID for the
HardwareVxlanNetwork.
End Vni: Enter an end ID for the
HardwareVxlanNetwork. This end ID must be larger or equal to
the Start VNI.
Note: The VNI range of a hardware SDN VXLAN
Pool depends on a virtually distributed switch to which
an SDN controller corresponds.
Cluster: Optional. Select a cluster
to be attached.
Note: When you create a VXLAN Pool, you can
attach it to a cluster. Or, you can attach it to the
cluster after you create the VXLAN Pool.
NIC: Enter an NIC for the
host.
Note: The NIC of a host that is attached to a
cluster must connect to a switch managed by an SDN
controller.
You can create a VXLAN Pool with the
hardware SDN type, as shown in Create Hardware SDN VXLAN Pool.Figure 2. Create Hardware SDN VXLAN Pool
You can create a VXLAN Pool with the software SDN type, as shown in Create VXLAN
Pool.Figure 3. Create VXLAN Pool
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.
Note: The Cloud will
reserve the last two VNIs (16777215 and 16777216) for
the system.
