Configuring Layer 2 Services over GRE

This chapter describes how to configure layer 2 services over generic routing encapsulation (GRE) in your ERX edge router.

Note: It is important to be familiar with configuring both Frame Relay and GRE tunnels before configuring layer 2 services over GRE.

Topic	Page
Overview	4-1
How Layer 2 Services over GRE Work	4-3
Configuring Frame Relay over GRE	4-7
Configuration Example	4-10
Monitoring Layer 2 Services over GRE	4-13