N+I Paris 98 Design: Copyright (c) 1998 Nortel Networks, All rights reserved.
Last Updated on 10/22/98 By Franck Honore

This is the description of the Internal Active network (Interop Network) of

Physical infrastructure

Network Overview

The technology proposed in the N+I'98 Paris network is exclusively based on frame. It is a Gigabit Ethernet backbone based on 12 Bay Networks Accelar routing switches. Client connections are all Fast Ethernet (10/100 autosensing) based on BayStack 450 switches. Network Management is provided on HP open view with Optivity NMS. Optivity Analysis is used in conjonction with external RMON probes.

Physical infrastructure

Gigabit backbone Concept

Gigabit backbone conceptual view

User PED (or Edge PED)

Each Edge PED consist of an Accelar 1200 routing switches and 3 BayStack 450 (L2 switch).
The 10/100 Meg normal users can be concentrated on the BS450 (24 ports per BS450). Special users can be directly concentrated on the Accelar routing switch (32 ports available) if they request additionnal IP addresses or additional subnets.

Concentration PED (C-Ped)

The Network Operation Center (NOC)

The NOC consist of

The accelar of C-Ped 1 concentrate all backup Gig feeder links coming from the Edge-Peds. It also connects 3 BayStack 450 which concentrate the users of area 1.
The two accelars of C-Ped 0 and C-Ped 9 concentrate Gig feeder links coming from the Edge-Peds. They also connect to the internet via two BN routers attached with Fast Ethernet.
Extra Gig interfaces are used on these two C-Peds to connect the Silicon Graphics Video servers.
The application running on the Silicon graphics Video servers is generating IP multicast traffic.
Two Backbone Node (BNŽ) routers.
The two routers are equipped with Fast Router Engine FRE to connect to the Gigabit Ethernet backbone. Two HSSI interfaces are used for connecting the Internet Service Providers via a SDH mux and a E3 mux.
Two 10/100Meg BayStack 250 hubs to connect the C-PED 0 and 9 to the routers and two other BS250 for Network Management, DNS and NOC user workstations.

Hall 7 : conference rooms (PED 10)

The PED 10 gives connectivity to the conference rooms of Hall 7. It is connected to the backbone using Fast Ethernet link over Multimode Fiber from a BS450 switch.

Active equipment

Here is a view of the active equipment that is put in place at Interop'98 Paris. The Routing Switches are Accelar Model 1200 with redundant power, redundant switch fabric and Gigabit interfaces equiped with redundant port providing the "link safe" feature, a subsecond takeover in case of fiber cut.