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Issue description

• figure 15 shows networks called udn-1 and udn-2. I recognise that the initialism udn is being used here as a generic term to cover all the types of user defined network here but from a student perspective this is potentially confusing given the fact that they will be created, and managed, separately – i.e. through the use of different resource types (the web console shows them as UDN and CUDN). Changing the names of these networks to cudn-1 and cudn-2 would be preferable therefore.
• Following on from the above bullet point there is a section that currently starts with “UDNs provide the following benefits….”. This should be modified to recognise that a UDN is a special type of resource so is not appropriate to use as a generic term here as the student may not be able to recognise what is happening. “User defined networks provide the following benefits…..” highlights the fact that we are talking about the generic concept and not the actual resource type. Ideally additional verbiage/clarification should be added into the section so the student can easily recognise the use of a generic description (user defined network) or a reference to a specific openshift resource type (UDN and CUDN).

• Additionally as this section follows immediately after, and could be seen to be part of the section entitled ClusterUserDefinedNetwork, that is another area of potential confusion so headings/section names should be modified to make it clearer that they are different sections

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