Nortel Networks NN43021-110 manual Superloop network configurations

Hardware architecture 41

Superloop network configurations

By combining four network loops, the superloop network card makes 120 timeslots available to IPE cards. Compared to regular network loops, the increased bandwidth and a larger pool of timeslots increases network traffic capacity for each 120-timeslot bundle by 25 percent (at a P0.1 grade of service).

The NT8D37 IPE module is divided into segments numbered 0–3 of four card slots each (see Figure 15 "Superloop segments in the IPE module" (page 41)). Segment 0 consists of slots 0–3, segment 1 consists of slots 4–7, segment 2 consists of slots 8–11, and segment 3 consists of slots 12–15.

Figure 15

Superloop segments in the IPE module

A superloop is made up of NT8D04 Superloop Network cards, NT8D01AC or NT8D01BC Controller-4 or NT8D01AD Controller-2 cards, and from one to eight IPE segments. The NT8D01BC Controller-4 replaces the NT8D01AC and NT8D01AD Controller cards for replacements and new installations.

A number of superloop-to-segment configurations are possible:

•one segment per superloop requires four superloop network cards and one controller-4 card

•two segments per superloop requires two superloop network cards and one controller-2 card

Nortel Communication Server 1000

Communication Server 1000M and Meridian 1 Large System Overview

NN43021-110 02.05 Standard

30 September 2008

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