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EDA 1200 Nodes

4.3.4 EMN120

The Ethernet Metro Node EMN120 is

a Gb traffic aggregation node that can

be used in the EDA access network

and in any metro Ethernet. It has 23

x 10/100/1000 Mbps ports (where 20

are optical/ electrical combo, and 3

are electrical). It can be extended with

a 10 Gb module that contains two

10Gb electrical interface ports with

Infini-band connector and two 10 Gb

optical XFP ports.

QoS is ensured with 8 queues and

various scheduling mechanisms.

EMN120 provides Layer 3 IP routing and maintains a high rate of throughput.

EMN120 forwards all traffic passing within the same segment and only routes

traffic that passes between different sub-networks. The wire-speed routing

provided by the EMN120 enables network segments or VLANs to be easily

linked together. The EMN120 can be subdivided into Virtual Routers (VRs)

serving different VPN or customer sites. The router is capable of storing

multiple routing tables: one for each service provider connection. EMN120

supports overlapping IP address spaces between the Virtual Routers.

EMN120 supports multicast streaming on Layer 2 and Layer 3 by use of IGMP.

The switch supports IGMP snooping and configurable suppression of IGMP

messages towards the upstream source for multicast groups. EMN120 supports

IGMP proxy and IP Multicast Routing protocols such as PIM-SM/SSM/DM

and DVMRP.

EMN120 is prepared for both ETSI and 19” rack mounting and has built-in fan

units that can be replaced without service interruption.

1/1551-LZA 101 464-V1 Uen C 2009-12-17

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APC IP DSLAM Guia do Utilizador Página 55