> For the complete documentation index, see [llms.txt](https://ccie.nyquist.eu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ccie.nyquist.eu/ipv4/ipv4-routing.md).

# IPv4 Routing

- [How the routing table is built](https://ccie.nyquist.eu/ipv4/ipv4-routing/how-the-routing-table-is-built.md)
- [How CEF works](https://ccie.nyquist.eu/ipv4/ipv4-routing/how-the-routing-table-is-built/how-cef-works.md)
- [Routing Order of Operations](https://ccie.nyquist.eu/ipv4/ipv4-routing/how-the-routing-table-is-built/routing-order-of-operations.md)
- [NSF – Non Stop Forwarding](https://ccie.nyquist.eu/ipv4/ipv4-routing/how-the-routing-table-is-built/nsf-non-stop-forwarding.md)
- [RIP](https://ccie.nyquist.eu/ipv4/ipv4-routing/rip.md)
- [RIP 101](https://ccie.nyquist.eu/ipv4/ipv4-routing/rip/rip-101.md)
- [EIGRP](https://ccie.nyquist.eu/ipv4/ipv4-routing/eigrp.md)
- [EIGRP 101](https://ccie.nyquist.eu/ipv4/ipv4-routing/eigrp/eigrp-101.md)
- [EIGRP Metric](https://ccie.nyquist.eu/ipv4/ipv4-routing/eigrp/eigrp-metric.md)
- [More EIGRP Features](https://ccie.nyquist.eu/ipv4/ipv4-routing/eigrp/more-eigrp-features.md)
- [OSPF](https://ccie.nyquist.eu/ipv4/ipv4-routing/ospf.md)
- [OSPF 101](https://ccie.nyquist.eu/ipv4/ipv4-routing/ospf/ospf-101.md)
- [OSPF Areas](https://ccie.nyquist.eu/ipv4/ipv4-routing/ospf/ospf-areas.md)
- [OSPF LSAs](https://ccie.nyquist.eu/ipv4/ipv4-routing/ospf/ospf-lsas.md)
- [OSPF Mechanics](https://ccie.nyquist.eu/ipv4/ipv4-routing/ospf/ospf-mechanics.md)
- [IS-IS](https://ccie.nyquist.eu/ipv4/ipv4-routing/is-is.md)
- [IS-IS 101](https://ccie.nyquist.eu/ipv4/ipv4-routing/is-is/is-is-101.md)
- [IS-IS Mechanics – CLNP](https://ccie.nyquist.eu/ipv4/ipv4-routing/is-is/is-is-mechanics-clnp.md)
- [BGP](https://ccie.nyquist.eu/ipv4/ipv4-routing/bgp.md)
- [BGP 101](https://ccie.nyquist.eu/ipv4/ipv4-routing/bgp/bgp-101.md)
- [BGP Attributes](https://ccie.nyquist.eu/ipv4/ipv4-routing/bgp/bgp-attributes.md)
- [More BGP](https://ccie.nyquist.eu/ipv4/ipv4-routing/bgp/more-bgp.md)
- [Route Redistribution](https://ccie.nyquist.eu/ipv4/ipv4-routing/route-redistribution.md)
- [Policy based Routing](https://ccie.nyquist.eu/ipv4/ipv4-routing/policy-based-routing.md)
- [PfR 101 – Perfromance Routing](https://ccie.nyquist.eu/ipv4/ipv4-routing/pfr-101-perfromance-routing.md)
- [ODR](https://ccie.nyquist.eu/ipv4/ipv4-routing/odr.md)