# Where did the page for PFR/OER go
**URL:** https://forum.networklessons.com/t/where-did-the-page-for-pfr-oer-go/6035
**Category:** IP Routing
**Created:** [January 21, 2019, 6:55pm UTC](https://forum.networklessons.com/t/where-did-the-page-for-pfr-oer-go/6035 "2019-01-21T18:55:30Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@roland.walker](https://forum.networklessons.com/u/roland.walker)
#### Post date: [January 21, 2019, 6:55pm UTC](https://forum.networklessons.com/t/where-did-the-page-for-pfr-oer-go/6035/1 "2019-01-21T18:55:30Z")
Where did the page go that explained OER and PFR?
I tried searching for it and it just hangs. The search comes up in google and then says page not found.
Roland
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### Author:  [@lagapidis](https://forum.networklessons.com/u/lagapidis)
#### Post date: [January 24, 2019, 4:05pm UTC](https://forum.networklessons.com/t/where-did-the-page-for-pfr-oer-go/6035/2 "2019-01-24T16:05:28Z")
Hello Roland
Just checked these links and they seem to work for me. Maybe it was a temporary outage? Try again and let us know if there are any problems:
[https://networklessons.com/cisco/ccie-enterprise-infrastructurecisco-performance-routing-pfr](https://networklessons.com/cisco/ccie-enterprise-infrastructurecisco-performance-routing-pfr)
> **[Introduction to OER (Optimized Edge Routing)](https://networklessons.com/ip-routing/why-use-oer-optimized-edge-routing-or-pfr-performance-routing)**
>
> OER (Optimized Edge Routing) adds intelligence to the network by choosing the best exit path for our traffic. This introduction explains why you want OER.
[https://networklessons.com/cisco/ccie-enterprise-infrastructureoer-optimize-edge-routing-phases](https://networklessons.com/cisco/ccie-enterprise-infrastructureoer-optimize-edge-routing-phases)
I hope this has been helpful!
Laz