Cisco SCE 1000 2xGBE User's Guide download pdf (Page 40)

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Chapter 2 Topology

Physical Installation

SCE 1000 2xGBE Release 2.0.10 User Guide

2-4 OL-7117-02

Bump-in-the-Wire (Inline) Topology

Typically, the SCE 1000 is connected on a full duplex line between two devices (Router, BRAS,

etc.). When the SCE 1000 is installed as a bump-in-the-wire, it physically resides on the data link

between the subscriber side and the network side, and can both receive and transmit traffic.

Figure 2-1: Bump-in-the-Wire Installation

A bump-in-the-wire installation is referred to as inline connection mode.

External Splitting (Receive-only) Topology

In external splitting, an external optical splitter resides physically on the GBE link between the

subscriber side and the network side. In this topology, the traffic passes through the external

splitter, which splits traffic to the SCE 1000. The external splitter is connected to the SCE 1000

via Rx links only. The SCE 1000, therefore, receives traffic only. It does not transmit.

Figure 2-2: External Splitting Topology

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Cisco SCE 1000 2xGBE User's Guide Page 40

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