Cisco SCE 8000 Installation Manual page 7

Dual Link: Inline Installation
In this topology, a Cisco SCE 8000 is connected inline in two full-duplex, 10GBE links (see
If load sharing exists between two links, 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, Cisco SCE 8000 completely overcomes this phenomenon, and provides its normal functionality
as if there is no asymmetrical routing in the two links.
Figure 4 Dual Link: Inline Installation
Subscriber 1
Subscriber 2
Single Link: Receive-Only Topology
In this topology, an optical splitter resides physically on the 10GBE link between the subscribers and the network (see
The traffic passes through the optical splitter, which splits the traffic to Cisco SCE 8000. As a result, Cisco SCE 8000 only
receives traffic and does not transmit.
Figure 5 Single Link: Receive-Only Topology
Subscriber
3/0/0
3/2/0
In an optical splitter topology, Cisco SCE 8000 enables only the traffic monitoring functionality.
When implementing receive-only topologies with a switch, the switch must support the SPAN functionality that
Note
includes separation between ingress and egress traffic and multiple SPAN ports destinations.
3/0/0 3/1/0
3/2/0 3/3/0
Splitter
3/1/0
3/3/0
Network 1
Network 2
Network
Figure 4).
Figure 5).
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