Information About Two Cascaded Sce 2000S For Dual Links; Two Cascaded Sce 2000S: Inline Topology - Cisco SFE2000P Installation And Configuration Manual

Information About Topology Considerations
Figure 3-4
Subscriber
PWR A PWR B
Subscriber
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.

Information About Two Cascaded SCE 2000s For Dual Links

In this topology, two cascaded SCE 2000 s are used. This allows a fail-over solution, where in case of a
failure of one SCE 2000 the functionality that the SCE 2000 provides is preserved by the redundant
platform.
•

Two Cascaded SCE 2000s: Inline Topology

This topology allows both control and monitoring functionality where redundancy is required and
"inline" connection is used. The two SCE 2000 s are cascaded, so the primary SCE 2000 processes the
traffic of the two links, while the secondary SCE 2000 only bypasses the traffic of its links to the primary
SCE 2000 for processing, and then bypasses the processed traffic back to the link. The two SCE 2000 s
also exchange keep-alive messages and subscriber state information.
Cisco SCE 2000 4xGBE Installation and Configuration Guide
3-8
SCE Platform Dual Link Receive-Only Topology
Router
STATUS BYPASS
LINK RX TX
RX MM TX
GBE-1
SUB LINE
Router
Two Cascaded SCE 2000s: Inline Topology
Optical
Router
splitter
Link 1
Cisco SCE 2000
LINK RX TX LINK RX TX
RX MM TX RX MM TX
GBE-2
NET SUB LINE/CASCADE NET
Link 2
Optical
Router
splitter
Chapter 3 Information About Topology
Network
Series
4xGBE
LINK RX TX
RX MM TX
Network
OL-7824-06