Single Link: Inline Topology; Dual Link: Inline Installation - Cisco SCE8000 Installation And Configuration Manual

Physical Topologies

Single Link: Inline Topology

Typically, the Cisco SCE8000 is connected in a full duplex 10GBE link between two devices (Router,
BRAS, etc.). When the Cisco SCE8000 is installed as an inline installation, it physically resides on the
data link between the subscribers and the network.
Figure 3-2
Subscriber
When configuring the Cisco SCE8000, an inline installation is referred to as "inline" connection mode.

Dual link: Inline Installation

In this topology, one Cisco SCE8000 is connected inline in two full duplex, 10GBE links.
In case the two links are load-shared, asymmetrical routing might occur, and some of the flows may be
split, that is, the upstream packets of the flow go on one link, and the downstream packets go on the other
link.
When installed in this topology, the Cisco SCE8000 completely overcomes this phenomenon, and
provides its normal functionality as if asymmetrical routing were not occurring in the two links.
Figure 3-3
Subscriber 1
Subscriber 2
This topology supports both monitoring and control functionality, and is referred to as "inline"
connection mode.
Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
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Single Link: Inline Topology
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Dual link: Inline Installation
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Chapter 3 Cisco SCE8000 Topology and Topology-Related Parameters
Network
Network 1
Network 2
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