CHAPTER
1-1
Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
1
Overview
This chapter provides these topics about the Cisco Metro Ethernet (ME) 3400 Series Ethernet Access
switch software:
•Features, page 1-1
•Default Settings After Initial Switch Configuration, page 1-8
•Network Configuration Examples, page 1-11
•Where to Go Next, page 1-15
In this document, IP refers to IP Version 4 (IPv4).

Features

The switch ships with one of these software images installed:
•The metro base image provides basic Metro Ethernet features.
•The metro access image includes additional features such as IEEE 802.1Q tunneling, Layer 2
protocol tunneling, dynamic ARP inspection, and IP source gu ar d.
•The metro IP access image adds Layer 3 functionality such as IP routing support for Routing
Information Protocol (RIP), Open Shortest Path First (OSPF) Protocol, Border Gateway Protocol
(BGP), and Enhanced Interior Gateway Routing Protocol (EIGRP), mu ltipl e V PN
routing/forwarding on customer edge devices, (multi-VRF-CE), and IP multicast routing
Protocol-Independent Multicast (PIM) sparse mode (SM) and dense mode (DM).
Note Unless otherwise noted, all features described in this chapter and in this guide are supported on
all images.
Some features noted in this chapter are available only on the cryptographic (that is, supports encryption )
versions of the switch software image. You must obtain authorization to use this feature and to do wnload
the cryptographic version of the software from Cisco.com. For more in for matio n, see the r elease n ote s
for this release.
The Cisco ME switch has two different types of interfaces: network node interfaces (NNIs) to connect
to the service provider network and user network interfaces (UNIs) to connect to customer networks.
Some features are supported only on one of these port types.