Dual Cisco Sce8000 Topology (Cascade) - Cisco SCE8000 Installation And Configuration Manual

Physical Topologies
Figure 3-5
Subscriber 1
Subscriber 2
When implementing receive-only topologies with a switch, the switch must support SPAN functionality
Note
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
Subscriber
Subscriber
Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
3-6
Dual Link: Receive-Only Topology
Splitter
3/0/0 3/1/0
3/2/0 3/3/0
Splitter
Two Cascaded Cisco SCE8000 Platforms
3/0/0 3/1/0
3/2/0 3/3/0
3/2/0 3/3/0
3/0/0 3/1/0
Chapter 3 Cisco SCE8000 Topology and Topology-Related Parameters
Network 1
Network 2
Network
Network
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