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 Scale and HA of DHCP agents

This section describes how to use component extension for DHCP agents scalability and HA

[Note]Note

We can use quantum client command to check if the component extension enabled:

gongysh@gongysh-laptop:~$ quantum ext-list -c name -c alias
+-----------+------------------------+
| alias     | name                   |
+-----------+------------------------+
| component | component              |
| router    | Quantum L3 Router      |
| binding   | Port Binding           |
| quotas    | Quotas for each tenant |
| provider  | Provider Network       |
+-----------+------------------------+
         

There will be three hosts in the setup.

Table A.2. Hosts for Demo
Host Description
OpenStack Controller host - controlnode Runs the Quantum service, Keystone and all of the Nova services that are required to deploy a VM. The service must have at least one network interface, this should be connected to the "Management Network". Note nova-network should not be running. This is replaced by Quantum.
HostA Runs Nova compute and the Quantum L2 agent and DCHP agent
HostB Same as HostA


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