> For the complete documentation index, see [llms.txt](https://connector.interledger4j.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://connector.interledger4j.dev/concepts.md).

# Concepts

- [Feature Summary](https://connector.interledger4j.dev/concepts/overall-design.md): A Java ILP Connector forwards packets from source links to destination links; applies exchange-rates; and tracks value-balances between itself and each peer.
- [Terminology](https://connector.interledger4j.dev/concepts/terminology.md): Words, words, words...let's all get on the same page.
- [Account Model](https://connector.interledger4j.dev/concepts/peering-account-model.md): Interledger Connectors track peer relationships using a concept called an Account.
- [Packet Switching Fabric](https://connector.interledger4j.dev/concepts/packet-switching-fabric.md): ILPv4 packets are forwarded to an outgoing link using a high-performance packet-switching fabric.
- [Exchange Rates](https://connector.interledger4j.dev/concepts/exchange-rates.md)
- [Routing Table Design](https://connector.interledger4j.dev/concepts/ilpv4-routing-table-design.md)
- [Destination Address Handling](https://connector.interledger4j.dev/concepts/architecture-design.md): This page details how ILP destination address prefixes are handled by the Connector when it encounters a Prepare packet.
- [Balance Tracking](https://connector.interledger4j.dev/concepts/balance-tracking.md)
- [Settlement](https://connector.interledger4j.dev/concepts/settlement-xrp-ledger.md): Peers accrue debt with each other by processing Interledger packets. Settlement allows peers to pay down that debt to enable more interledger packet processing.