Cisco SCE8000 Installation And Configuration Guide

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Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
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Chapter 3 Cisco SCE8000 Topology and Topology-Related Parameters
Physical Topologies
Figure 3-5 Dual Link: Receive-Only Topology
Note When implementing receive-only topologies with a switch, the switch must support SPAN functionality
that includes separation between ingress and egress traffic and multiple SPAN-ports destinations.
Dual Cisco SCE8000 Topology (Cascade)
In this topology, two cascaded Cisco SCE8000s are used. This allows a fail-over solution, where in case
of a failure of one Cisco SCE8000 the functionality that the Cisco SCE8000 provides is preserved by the
redundant platform.
This topology allows both control and monitoring functionality where redundancy is required and
“inline” connection is used. The two Cisco SCE8000s are cascaded, so the primary Cisco SCE8000
processes the traffic of the two links, while the secondary Cisco SCE8000 only bypasses the traffic of
its links to the primary Cisco SCE8000 for processing, and then bypasses the processed traffic back to
the link. The two Cisco SCE8000s also exchange keep-alive messages and subscriber state information.
In case the primary Cisco SCE8000 fails, the two Cisco SCE8000s switch their roles, and this way
fail-over is provided.
Figure 3-6 Two Cascaded Cisco SCE8000 Platforms
270587
Subscriber 1
Network 1
Subscriber 2
Network 2
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3/2/0 3/3/0
3/1/0
Splitter
Splitter
Subscriber
270590
Network
3/0/0
3/2/0
3/1/0
3/3/0
Subscriber
Network
3/2/0
3/0/0
3/3/0
3/1/0

Cisco SCE8000 Specifications

General

Brand	Cisco
Model	SCE8000
Category	Network Hardware
Language	English