Cisco SCE 8000 User Manual

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Cisco SCE8000 GBE Installation and Configuration Guide
Chapter 3 Cisco SCE 8000 Topology and Topology-Related Parameters
Cisco SCE 8000 Interface Numbering
Dual Link: Receive-Only Topology
In this topology, one Cisco SCE 8000 is connected in receive-only mode to two full duplex, 10 Gig links
using optical splitters (see Figure 3-5). If the two links are load-shared, asymmetrical routing might
occur, and some of the flows may be split, i.e. 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 SCE 8000 completely overcomes this phenomenon, and
provides its normal monitoring functionality as if asymmetrical routing were not occurring in the two
links.
This installation supports monitoring functionality only, and is configured as “receive-only” connection
mode.
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.
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Subscriber 1
Network 1
Subscriber 2
Network 2
3/0/0
3/2/0 3/3/0
3/1/0
Splitter
Splitter

Cisco SCE 8000 Specifications

General

Brand	Cisco
Model	SCE 8000
Category	Switch
Language	English