Cisco ME 3400 Series User Manual

Data Sheet
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UNI/ENI/NNI
The Cisco ME 3400 Series software introduces the concept of User-Network Interface/Enhanced
Network Interface/Network-Node Interface (UNI/ENI/NNI) for Ethernet access switches. Because
the software can identify the application of each port, it can provide many powerful default
behaviors. Table 1 lists some of the primary behaviors and benefits of UNI/ENI/NNI.
Table 1. UNI/ENI/NNI Default Behaviors
Default Behaviors Benefits
UNI/ENI default: Down Ports must be activated by the service provider before customers can receive service.
UNI/ENI default: No Local Switching Circuit-like behavior protects customers from each other.
UNI/ENI default: Configurable
Control Plane Security Enabled
Control-plane packets ingressing from the UNI/ENI are dropped in hardware to protect
against denial of service (DoS) attacks by default. Unlike UNI ports, ENI ports provide
service providers the flexibility to selectively discard or peer with customer’s control
plane traffic on a per-port, per-protocol basis for the following L2 protocols: CDP,
LLDP, LACP, PAgP, and STP.
NNI default: Up Enables automated configuration of the switch through a Dynamic Host Configuration
Protocol (DHCP) or BOOTP server.
Flexible Deployment Options for Software Features
The Cisco ME 3400 Series offers three different Cisco IOS Software feature images—
METROBASE, METROACCESS, and METROIPACCESS—providing cost-effective, pay-as-you-
grow upgrade options for service providers deploying multiple services. The service providers do
not have to pay for the features they do not need today and still have the option in the future to
receive those features with a simple software upgrade.
Support for multiple software feature images allows service providers to standardize on the Cisco
ME 3400 Series, save on the operating expense of stocking multiple products, simplify training of
support technicians, and alleviate complications in supporting different products for different
services.
Table 2 lists key features in the Cisco IOS Software images for the Cisco ME 3400 Series.
Table 2. Key Features in Cisco IOS Software Images for Cisco ME 3400 Series
METROBASE METROACCESS METROIPACCESS
UNI/ENI/NNI All METROBASE features All METROACCESS features
Internet Group Management Protocol
(IGMP) Filtering and Throttling
802.1Q Tunneling, L2PT Static routing
Multicast VLAN Registration (MVR) Ethernet OAM (802.1ag, 802.3ah, E-LMI
Y.1731)
Multi-VRF CE (VRF-lite)
Advanced QoS Configurable per VLAN MAC Learning PBR
Configurable Control Plane Security Flex-Link RIP versions 1 and 2
Configuration File Security Dynamic ARP Inspection, IP Source
Guard
EIGRP, OSPF, and IS-IS
DHCP Snooping Per Port Per VLAN Ingress Policing BGPv4
Private VLAN Link-State Tracking NNI Configurable on All Ports
(IPv6)
Configuration Rollback Resilient Ethernet Protocol (REP) Source Specific Multicast
DHCP Based Auto Configuration, Image
Update, and Port-Based Allocation
Ethernet IP SLA and TWAMP Source Specific Multicast Mapping
Configurable Control Plane Queue
Assignment
Embedded Event Manager Multicast support for VRF (mVRF-Lite)

Cisco ME 3400 Series Specifications

General

Brand	Cisco
Model	ME 3400 Series
Category	Switch
Language	English