Update plan-installation.md

cleaned up Mark's additions
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@ -22,16 +22,16 @@ Docker UCP requires Docker Enterprise Edition. Before installing Docker EE on
your cluster nodes, you should plan for a common hostname strategy.
Decide if you want to use short hostnames, like `engine01`, or Fully Qualified
Domain Names (FQDN), like `engine01.docker.vm`. Whichever you choose,
Domain Names (FQDN), like `node01.company.example.com`. Whichever you choose,
ensure that your naming strategy is consistent across the cluster, because
Docker Engine and UCP use hostnames.
For example, if your cluster has three hosts, you can name them:
```none
node1.company.example.org
node2.company.example.org
node3.company.example.org
node1.company.example.com
node2.company.example.com
node3.company.example.com
```
## Static IP addresses
@ -42,7 +42,9 @@ this.
## Avoid IP range conflicts
Swarm uses a default address pool for its overlay networks that is `10.0.0.0/16`. If this conflicts with your current networks, please use a custom IP address pool by specifying `--default-address-pool` during [Swarm initialization](../../../../engine/swarm/swarm-mode.md). Currently, the UCP installation process does not support this flag. To deploy with a custom IP pool Swarm must first be installed using this flag and UCP must be installed on top of it.
Swarm uses a default address pool of `10.0.0.0/16` for its overlay networks. If this conflicts with your current network implementation, please use a custom IP address pool. To specify a custom IP address pool, use the `--default-address-pool` command line option during [Swarm initialization](../../../../engine/swarm/swarm-mode.md).
**NOTE:** Currently, the UCP installation process does not support this flag. To deploy with a custom IP pool, Swarm must first be installed using this flag and UCP must be installed on top of it.
Kubernetes uses a default cluster IP pool for pods that is `192.168.0.0/16`. If it conflicts with your current networks, please use a custom IP pool by specifying `--pod-cidr` during UCP installation.