# Planning Your Network

This chapter describes planning steps that will make it easier to configure the physical interfaces, logical interfaces, and routing protocols for the Juniper Networks E Series Broadband Services Routers in:

- A new network that you are creating and implementing
- An existing network that you are expanding

This chapter contains the following sections:

- Platform Considerations
- Edge Applications Overview
- Layered Approach
- Line Modules, I/O Modules, and IOAs
- Interfaces
- General Configuration Tasks
- Configuring Virtual Routers
- Configuring IPSec
- Configuring Physical Layer Interfaces
- Configuring Data Link-Layer Interfaces
- Configuring IP Tunnels, Shared IP Interfaces, and Subscriber Interfaces
- Configuring Routing Protocols
- Configuring VRRP
- Configuring Routing Policy
- Configuring QoS
- Configuring Policy Management
- Configuring Remote Access