1. Connectivity
1.1. Physical
1.1.1. Locations
1.1.1.1. Single
1.1.1.2. Multiple
1.1.2. Provisioning
1.1.2.1. New Connection
1.1.2.1.1. Letter of Authorization
1.1.2.2. Link Aggregation Groups
1.1.2.3. Cross Connect
1.1.3. Connections
1.1.3.1. Dedicated
1.1.3.2. Hosted
1.1.3.2.1. AWS Partner
1.2. Logical
1.2.1. VIF
1.2.1.1. Public
1.2.1.2. Private
1.2.1.3. Hosted
1.2.2. Direct Connect Gateway
1.3. Resilient
1.3.1. Single AWS device
1.3.1.1. Single Location
1.3.1.2. More than one location
1.3.2. Multiple AWS devices
1.3.2.1. Single Location
1.3.2.2. More than one location
1.3.3. Bidirectional Forwarding Detection
1.3.4. VPN with AWS Direct Connect
1.3.4.1. Backup VPN over the Internet
1.3.4.2. VPN over Direct Connect
1.3.4.3. Integration with Transit VPC
2. Billing
3. Core Concepts
3.1. Border gateway Protocol
3.1.1. Autonomous Systems
3.1.2. Route exchange across networks
3.1.3. Used by the Internet
3.1.4. AS_Path used for route discovery
3.2. Bidirectional Forwarding Detection
3.2.1. Fast failure detection and failover
3.2.2. Useful for multiple Direct Connect connections
3.3. 802.1Q VLANs
3.3.1. underlying concept for VIFs
3.3.2. used to divide a pipe into separate networks using VLAN tag
3.3.3. Layer 2 technology