Creating a Networker Node - Is VipHosts neccessary in Red Hat OpenStack Platform 10

Issue

Following the RHOSP 10 documentation on creating a composable role, in this case a networker node. The networker role has the VipHosts service shown in the example. Is it necessary to provide a networker node with VipHosts?

This is the current definition of the role:

- name: Networker
  CountDefault: 1
  HostnameFormatDefault: '%stackname%-networking-%index%'
  ServicesDefault:
    - OS::TripleO::Services::CACerts
    - OS::TripleO::Services::FluentdClient
    - OS::TripleO::Services::Kernel
    - OS::TripleO::Services::NeutronDhcpAgent
    - OS::TripleO::Services::NeutronL3Agent
    - OS::TripleO::Services::NeutronMetadataAgent
    - OS::TripleO::Services::NeutronOvsAgent
    - OS::TripleO::Services::Ntp
    - OS::TripleO::Services::SensuClient
    - OS::TripleO::Services::Snmp
    - OS::TripleO::Services::Timezone
    - OS::TripleO::Services::TripleoPackages
    - OS::TripleO::Services::TripleoFirewall
    - OS::TripleO::Services::VipHosts

from The documentation for the composable role