Installation guide

E4G Series Routers Hardware Installation Guide
13
CHAPTER
1
About the E4G Series Routers
This chapter describes the Extreme Networks E4G series routers and includes the following sections:
● Overview on page 13
● E4G-200 Series Cell Site Routers on page 14
● E4G-400 Cell Site Aggregation Router on page 20
● Pluggable Interfaces for E4G Series Routers on page 28
Overview
The Extreme Networks E4G router family consists of the E4G-200 series cell site routers (E4G-200 and
E4G-200-12x), and the E4G-400 cell site aggregation router. These routers provide high-bandwidth
capacity, highly accurate and flexible timing, and Operations Administration and Maintenance (OAM)
capabilities that support service level agreement (SLA) metrics. They support time-division multiplexing
pseudowire end-to-end emulation (TDM PWE3). PWE allows the simultaneous support of multiple
generations of services (2G, 3G and 4G) over the same Ethernet backhaul network without having to
remove legacy T1/E1 equipment and incur associated costs.
The E4G-200 Series Cell Site Routers collect traffic from cell site towers for handoff to the mobile
backhaul network. The E4G-200 series routers connect to the E4G-400 Cell Site Aggregation Router,
which aggregates T1, E1. and Ethernet traffic for handoff to the mobile core (see Figure 1).